Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
MANUAL FOR OPERATION OF THE 4JX1 – DIESEL UBS-73
VERSION 3.1
23RD APRIL 2014
UBS69 = 3.1 turbo diesel motor (4JG2) Trooper/Bighorn/Jackaroo
UBS73= 3 turbo diesel motor (4JX1) Trooper/Bighorn/Jackaroo [4JB1-T engine will replace 4JX1]
Manual (whole ca) rhttp://www.clubisuzu.com/ , http://vocasupport.com/4jx1-engine/
[for download]
General: The 4JX1 is a CAT engine, licenced engine to IZUSU
Mechanics that work on the 4JX1
Mechanical World on Edward St, Wagga.
South Coast 4wd in Wollongong.
http://www.jcdiesel.com.au/
http://www.smsdiesel.com.au/contact_pages/Melbourne_contact.html
SMS Diesel spares 133767
http://eng-tek.com.au/
Engine performance
Disclaimer: - Any brand, posters or other names mentioned are purely for general information and are not endorsed by the author/s.
The written material largely comes from: http://forum.australia4wd.com/index.php?/forum/60-4jx1-30-
tdi/?prune_day=100&sort_by=Z-A&sort_key=last_post&topicfilter=all Not all contributors are noted.
1|
Page
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
INDEX FOR 4JX1
1.
Overall operation of the 4JX1 Engine:.................................................................................. 6
What is a Diesel engine and questions on operations?? ...................................................................... 7
2.
How the 4JX1 System Works: ................................................................................................ 9
3.
Oil Supply Diagram .............................................................................................................. 10
4.
Diagnostic gear - TECH – II................................................................................................ 11
5.
Diesel - Initial analysis ......................................................................................................... 12
6.
Diagnostics – Non Starting Engine: .................................................................................... 13
Reading Flash Diagnostic Trouble Codes [DTC] /Fault Codes:....................................................... 15
DTC for 4JX1:....................................................................................................................................... 17
Service Intervals [found by 4JX1 users] ............................................................................................. 19
General issues and things to look for in your Jackaroo [when you first get it]: ..................................................21
Routine Service – Things to help:........................................................................................................ 22
Fuel Filter:...........................................................................................................................................................22
Things for a long trip: .........................................................................................................................................23
Battery: ...................................................................................................... Error! Bookmark not defined.
Battery Isolators/ Charge Protectors: ..................................................... Error! Bookmark not defined.
Dual Battery: ............................................................................................. Error! Bookmark not defined.
7.
Parts List: ...................................................................................Error! Bookmark not defined.
8.
Air Filters ...................................................................................Error! Bookmark not defined.
Oiled air filters .................................................................................................... Error! Bookmark not defined.
Belts and replacement: ............................................................................. Error! Bookmark not defined.
Alternator Specifications: ................................................................................... Error! Bookmark not defined.
Regulator Problems/ Alternator:............................................................. Error! Bookmark not defined.
2|
Page
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
Manual Jackaroo 4JX1 Engine - April 2014
9.
[Sunday, May 18, 2014]
Fuel Supply:...............................................................................Error! Bookmark not defined.
Fuel Filter .................................................................................................... Error! Bookmark not defined.
CAV fuel filters: ................................................................................................. Error! Bookmark not defined.
Water Scan Filter: ............................................................................................... Error! Bookmark not defined.
Fuel Pump: ................................................................................................ Error! Bookmark not defined.
10.
OIL CHANGES: ....................................................................Error! Bookmark not defined.
Notes on Oil related matters: ................................................................... Error! Bookmark not defined.
OIL TYPE: ................................................................................................ Error! Bookmark not defined.
Oil Pickup:................................................................................................. Error! Bookmark not defined.
Injector Harness Seals:........................................................................................ Error! Bookmark not defined.
Catch can ................................................................................................... Error! Bookmark not defined.
11.
Engine head ...........................................................................Error! Bookmark not defined.
Injectors ..................................................................................................... Error! Bookmark not defined.
Gaskets and seals needed to change the injectors .................................. Error! Bookmark not defined.
Injector Sleeves – removal/ replacement ................................................ Error! Bookmark not defined.
Manifold gaskets ....................................................................................... Error! Bookmark not defined.
Valve Clearance: ....................................................................................... Error! Bookmark not defined.
Exhaust: ..................................................................................................... Error! Bookmark not defined.
Poor Idle Quality:................................................................................................ Error! Bookmark not defined.
MAP Sensor/ EGV valve:......................................................................... Error! Bookmark not defined.
INJECTOR SEALS:................................................................................. Error! Bookmark not defined.
Injectors:.................................................................................................... Error! Bookmark not defined.
Glow plugs / Cleaning intake manifold:.................................................. Error! Bookmark not defined.
Suppliers: ............................................................................................................ Error! Bookmark not defined.
Checking Glow plugs:......................................................................................... Error! Bookmark not defined.
12.
Cooling/ Water System/Heater/Coolant:...............................Error! Bookmark not defined.
Radiator:.................................................................................................... Error! Bookmark not defined.
Coolant:...................................................................................................... Error! Bookmark not defined.
Faulty “O” Ring rear head: ..................................................................... Error! Bookmark not defined.
Diagnostics:................................................................................................ Error! Bookmark not defined.
3|
Page
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
Water pump: ............................................................................................. Error! Bookmark not defined.
13.
Sensors and Returns:.............................................................Error! Bookmark not defined.
Multi plug connector: ............................................................................... Error! Bookmark not defined.
14.
ORPS [Oil Rail Pressure Sensor]..........................................Error! Bookmark not defined.
Calibration ORPS:.................................................................................... Error! Bookmark not defined.
Rail Pressure Control Valve - RPCV....................................................... Error! Bookmark not defined.
Cleaning the RCPV: ........................................................................................... Error! Bookmark not defined.
ECM - Engine Control Module .............................................................. Error! Bookmark not defined.
ECU – Electronic Control Unit................................................................ Error! Bookmark not defined.
High pressure Pump:................................................................................ Error! Bookmark not defined.
TIMING/ High pressure Pump + Replacement Timing Belt:............... Error! Bookmark not defined.
15.
PCV Valves:............................................................................Error! Bookmark not defined.
Injectors:.................................................................................................... Error! Bookmark not defined.
Oil Rail Pressure Meter............................................................................ Error! Bookmark not defined.
Starting after replacing injector O-rings:............................................... Error! Bookmark not defined.
Fuel leak diagrams/ sleeves/o-rings: ................................................................... Error! Bookmark not defined.
16.
Sump and Engine Front -end................................................Error! Bookmark not defined.
High pressure Pump / Harmonic Balancer and O-rings ....................... Error! Bookmark not defined.
Sump Removal: ......................................................................................... Error! Bookmark not defined.
Oil Blow-by:............................................................................................... Error! Bookmark not defined.
Oil Pickup Pipes:....................................................................................... Error! Bookmark not defined.
CPS - Crank Position Sensor: .................................................................. Error! Bookmark not defined.
17.
TURBO:..................................................................................Error! Bookmark not defined.
Turbo Mods:.............................................................................................. Error! Bookmark not defined.
Turbo Timers: ..................................................................................................... Error! Bookmark not defined.
Turbo Changes [Type suitable]:.......................................................................... Error! Bookmark not defined.
TURBO Removal and replacement: ................................................................... Error! Bookmark not defined.
4|
Page
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
Manual Jackaroo 4JX1 Engine - April 2014
18.
[Sunday, May 18, 2014]
TPS [Throttle Position Sensor] .............................................Error! Bookmark not defined.
Throttle Body and EGR: .......................................................................... Error! Bookmark not defined.
EGR Removal and Service: ................................................................................ Error! Bookmark not defined.
Calibrating the TPS [Throttle Position Sensor] ..................................... Error! Bookmark not defined.
TPS: .................................................................................................................... Error! Bookmark not defined.
ECU and calibration of TPS: ................................................................... Error! Bookmark not defined.
Rail Pressure Control Valve [RPCV] or Pressure control valve [PCV}Error! Bookmark not
defined.
19.
Fuel supply – Tank and initial Fuel Filter:..........................Error! Bookmark not defined.
Replace Fuel Filter –........................................................................................... Error! Bookmark not defined.
PCV:........................................................................................................... Error! Bookmark not defined.
20.
21.
Other Solutions – Other sources: ..........................................Error! Bookmark not defined.
Clutch: ....................................................................................Error! Bookmark not defined.
Clutch Removal: ................................................................................................. Error! Bookmark not defined.
Clutch – Dual mass: .................................................................................. Error! Bookmark not defined.
22.
Radio and Installation: ..........................................................Error! Bookmark not defined.
23.
Cruise Control ........................................................................Error! Bookmark not defined.
24.
Tyres .......................................................................................Error! Bookmark not defined.
25.
Body Issues:............................................................................Error! Bookmark not defined.
Reduction of Drag............................................................................................... Error! Bookmark not defined.
26.
CASE STUDY – Uneven Idle ................................................Error! Bookmark not defined.
Sleeve Puller Tool – Chilby ...................................................................... Error! Bookmark not defined.
Vehicle GVM + LOADS:.......................................................................... Error! Bookmark not defined.
Manifold blocked:............................................................................................... Error! Bookmark not defined.
5|
Page
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
Manual Jackaroo 4JX1 Engine - April 2014
27.
[Sunday, May 18, 2014]
Parts List: ...............................................................................Error! Bookmark not defined.
1. Overall operation of the 4JX1 Engine:
Suggested Actions for Owners [Injector Article written by Red-one]
• Ensure the correct type and grade of oil is being used in the engine. Correct operation of
every part of the injector oil circuit is critical to the successful operation of this engine. The
piston within the injector has to move exactly the correct distance to deliver the correct
quantity of fuel, and operate at exactly the right moment in the engine cycle, for the engine to
run correctly. Selection of a good quality oil, of suitable viscosity, clearly plays a vital part in
this.
• Check sump oil level regularly (at least once per week), and be aware that a rising oil level
could be the start of other problems.
• Keep a wary eye open for fluid loss or leaks such as oil leaks from engine seals, or the smell
of diesel in the coolant.
• Holden Jackaroo owners - contact Holden and enquire whether the Campaign 03-H-03 has
been done on your vehicle. Note this Campaign relates to the injector sleeve sealing O-rings,
which according Holden : “can deteriorate and cause fuel to leak into the crankcase”. If not,
book it in – Holden should do this free of charge.
• At each 80 k kms service interval, replace the O-rings between injectors and sleeves, and
between sleeves and cylinder head, as a precaution. This will add little to the overall cost of the
service, as the mechanic will already be working in this part of the engine, checking and
adjusting the valve clearances.
• If the oil level in the sump rises to the point that it enters the crankcase breather pipe, the
engine may start to run on it’s own oil. In this situation, in Holdens words : “ this may result
in an unintentional increase in engine speed, and possibly vehicle speed”.
If this happened, it would cause most people to get very alarmed, especially if it happened in
heavy traffic, driving at high speed, etc.. The engine will no longer respond to normal throttle
operation, and will continue to run even with the ignition switched off.
• In extreme cases, engines have been known to red-line and self destruct. In the UK, there
have been cases of engines being replaced free of charge by Isuzu.
• If a motorist is unfortunate enough to experience a run away engine, the best advice is to
immediately steer in a safe direction, engage the highest possible gear and jump on the
6|
Page
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
footbrake and hand brake together to stall the engine. Only depress the clutch or engage
neutral as a last resort as this will allow the engine to spin freely out of control.
This will be alien to most normal driving, and against normal instincts. Failure to stop the
engine at this point may lead to a very expensive engine rebuild. Staying on a high traction
surface eg bitumen would be better than driving onto loose sand – spinning wheels would have
little braking effect on the engine. Do not turn off the ignition before the vehicle comes to rest,
to avoid locking the steering wheel.
What is a Diesel engine and questions on operations??
A diesel alters engine speed by varying the amount of fuel to the injectors.
Disagree. By the amount of fuel and AIR. And air is as important as fuel
A diesel does not need a throttle plate. In fact all it would do is restrict airflow and reduce
efficiency.
Disagree. Amount of air coming to intake manifold and staying there prepared to be pushed in
the cylinders is calculated and controlled by MAP sensor and Throttle body sensor.
If we can replace this to by airflow metering sensor like at petrol cars - yes, we can eliminate the
throttle (possibly) but at our conditions - we cannot.
The size of the pipe x pressure inside = amount of flow through
Normally fuel injector output by the ECM controls air/fuel ratios (the Lambda ratio).
This is by using the data from ALL sensors: Fuel temp, intake air temp, coolant temp, MAP, TPS
Can you feed the EGR system with clean filtered air instead of dirty combusted air - This part is
easy, but how you will heat it to the same temperature?
That’s a question.
Another is a pressure of this pre-heated air and third is an oxygen concentration as well.
Recycled air is used to reduce the burning temp in the cylinders by this I assume that oxygen
concentration should be lower.
But it seems that Isuzu fitted a throttle plate mainly for the EGR, which means that throttle plate
openings are timed to suit the EGR manifold vacuum requirement, so the system is well
embedded in the ECM's programming.
EGR system is secondary.
7|
Page
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
It uses some data from Temp sensors, Pedal sensor, TPS and Map, and operates controlled by
software algorithm, limited by EGR pressure sensor as well.
About the picture of intake pipe and pressure.
A thought that a square box marked at the picture is a silencer.
The surface of air filter is many times higher that a surface of this small hole joining the silencer
to the intake pipe. Incomparably smaller, so no dumping of vacuum.
Crankcase vapours goes out with a bit of pressure that’s the gas coming through the piston rings
and accumulating inside the engine.
That’s why all you need - guide them into the catch can where they change direction of flow and
leave oil particles at the walls of the can. Please be careful with putting some membrane (or
mesh) filters or anything else inside, because if you completely block the ventilation these gases
could find another way to go by pressing out some seals. Just imagine that this could be a
crankshaft seal at the back (near gearbox) and get the price of fixing these tuning results.
WBR Sergey
8|
Page
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
2. How the 4JX1 System Works:
9|
Page
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
3. Oil Supply Diagram
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
10 |
Page
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
4. Diagnostic gear - TECH – II
http://www.uobd2.net/wholesale/gm-tech2-gm-diagnostic-scanner.html
I believe it is this card. http://www.uobd2.net/wholesale/32mb-card-for-gm-tech2-1538.html
ISUZU ISUZU-English 107.021 2006-2010
ISUZU-CANBUS is for ISUZU after 2010
ISUZU-K-line is for ISUZU from 1996 to 2010
Request the K-Line software as this covers our Jackaroo’s.
======================================================================
PC, Laptop, or Netbook: PC-based scan tools allow you to diagnose and troubleshoot problems with
your car, truck, or motorcycle.
They harness the power of your PC, and have a number of important advantages over stand-alone
scanners: http://www.myscantool.com/store/
http://www.scantool.net/scan-tools/pc-based/ and: http://www.easyobdii.com/index.php
http://www.control-tech.com.au/oil-rail-pressure-meter
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
11 |
Page
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
5. Diesel - Initial analysis
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
12 |
Page
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
6. Diagnostics – Non Starting Engine:
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
13 |
Page
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
14 |
Page
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
Reading Flash Diagnostic Trouble Codes [DTC] /Fault Codes:
The provision for communicating with the Engine Control Module (ECM) is the Data Link Connector
(DLC). The DLC is located in the front console box. It is used in the assembly plant to receive information
in checking that the engine is operating properly before it leaves the plant.
The diagnostic trouble code(s) (DTCs) stored in the ECM’s memory can be read either through a handheld diagnostic scanner plugged into the DLC or by counting the number of flashes of the “Check
Engine” Malfunction Indicator Lamp (MIL) when the diagnostic test terminal of the DLC is grounded.
The DLC terminal “6” (diagnostic request) is pulled “Low” (grounded) by jumpering to DLC terminal “4”,
which is a ground wire.
This will signal the ECM that you want to “flash” DTC(s), if any are present. Once terminals “4” and “6”
have been connected, the ignition switch must be moved to the “ON” position, with the engine not
running.
The “Check Engine”MIL will indicate a DTC three times if a DTC is present. If more than one DTC has
been stored in the ECM’s memory, the DTC(s) will be output from the lowest to the highest, with each
DTC being displayed three times.
The DTC display will continue as long as the DLC is shorted.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
15 |
Page
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
Fault Codes and Interpretation: Posted 22 October 2009 - 10:05 AM
Don't worry about oil in the TPS potentiometer it will be in most Jacks out there, as there is no actual
seal on the butterfly shaft and even when brand new, oil comes from the breather system not
necessarily the turbo.
It is a simple carbon film POT and the fingers eventually wear the carbon film through.
The TPS is only used for input to the ECU regarding what level of EGR to apply to the engine, yes it can
cause rough idle when on the way out but this is because the EGR valve is being told (by the ECU) the
wrong information.
I have never seen hard to start and no acceleration caused by the TPS, my money would be on the ORP
sensor for that problem.
Don't forget the easy way to find out what code is set when the check engine light comes on is to bridge
4 and 6 in the data connector - 2 minutes work and free.
TPS fault code is 73 or 74, ORP fault code could be 61, 62, 63 but regularly does not set a code when
faulty.
Therefore NO ORPS fault code does not necessarily mean a fault! Cheers Dave L.
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
16 |
Page
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
DTC for 4JX1:
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
17 |
Page
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
18 |
Page
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
Guidance for problem Solving:
The main problems with Turbo diesel 4JX1 causing it to run poorly or not start are:
1. Wrong oil grade. (Should be 5/30 or 10/30 for Melbourne)
2. ORPS (Oil Rail Pressure Sensor) which monitors the oil pressure to the injectors.
3. RPCV (Rail Pressure Control Valve) which adjusts the pressure to the injectors via the ORPS.
4. TPS (Throttle Position Sensor) which monitors the position of the throttle.
5. CKP (Crankshaft Position Sensor) which monitors the position of the crankshaft and sets up the
injector timing pulses.
6. Injector wiring harness and connector getting oil soaked.
Items 1, 2, 3, 4 and 5 should set a fault code (see Tip #10) .
Experience indicates:
- The engine oil and filter should be changed regularly and the supplementary oil filter should be
changed at every second oil change. CRITICAL
- The ORPS should be replaced at 150,000km CRITICAL
- The RPCV should be cleaned at 150,000km CRITICAL
- The TPS should be replaced at 150,000km (NOT CRITICAL)
- The CKP may “wear out” due to end float in the crankshaft – more common on the manual
tranmsission. It may not show a fault code! Remove sensor and check condition of the sensor face.
- The injector wiring harness should be checked at the connector near the throttle body. If the connector
is oil soaked then clean with petrol or methylated spirits.
These problems and fixes are covered in more detail by the series of Jackaroo Tips available on request.
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
19 |
Page
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
Service Intervals [found by 4JX1 users]
Item
Distance
Change
INJECTOR SEALS
100,000140000 km
Yes
CAT HEUI injectors for
internal seal replacemt.
100,000 150,000
Yes
Oil Changes
5000 to 10000
km
Yes
ORPS
50000-70000 km
Yes
Throttle body position
sensor
50000-70000 km
Yes
ORPCV
50000 km
Injector [CAT HUEI
overhaul set]
100,000km
Wiring harness
At 240,000 km
intervals
Coolant
Clean
Overhaul
Best Use/ Notes
Penrite HPR Diesel 5 or Mobil
Delvac1, Castrol R-synth 5W-30,
Mobil 1 5w50
Replace when necessary.
CAT - Kit sells for about A$6585/injector [must change Cu washer]
clean
HARNEX in Brisbane can remanufacture the entire harness
for an approx. $200.
50, 000km
Replace
Orange dexcool type coolant for Al
heads/ radiators
Glow Plugs
100, 000km
Check/replace
Cam/ Timing Belt
100, 000km
Replace
Valve clearance
20000km, then
Type:
30000km 50,
80, 120 etc
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
20 |
Page
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
General issues and things to look for in your Jackaroo [when you first get it]:
When I got the 2000 jack, the seller serviced it:
1. It was leaking oil out of all oil filters, (I replaced all);
2. cleaned engine, replaced turbo and oil supply line;
3. fixed oil leaking out of tappet cover,( with new seal and taking 2mm off spacers)
4. fixed leaking diesel out of metal block at back of motor, (missing copper washer) that Holden said
they could not fix (took me 20 mins)
5. replaced timing belt and rollers, cleaned up wiring loom and plug, (that was full of oil and spray a
sealer on top of plug) no oil so far,
6. Now next job is to have a go at why coolant is being pushed back into reserve tank,
7. I replaced thermostat and cap;
8. It only seemed to do it after was playing with glow plugs, as I had the manifold off, so back to
removing it;
9. Well tried removing glow plugs snapped two, replaced one and left other one after cleaning and
spraying with crc, wd40, and some other stuff, I
10. only have two working ok, So left it as is - Starts ok
11. and now will check that I had not missed something
Posted 27 December 2012 - 08:12 PM
An engine with good compression not only compresses well - it also sucks very well on the intake stroke.
Fluids may be drawn into the engine including:
1. engine coolant/water ( white smoke usually ),
2. excess & unburnt diesel ( white smoke usually ),
3. engine oil ( blue smoke usually ).
The HEUI injector system can produce nozzle tip pressures approaching 30,000psi. This means that a
faulty fuel injector control system can put too much fuel into the engine. There is a fixed amount of
oxygen so part of the fuel wouldn't burn in that case. You will then get white smoke smelling of diesel (
acrid ). i.e. unburnt diesel ( hence white smoke ) can come from sources other than a loss of
compression:
a. faulty injection
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
21 |
Page
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
b. Fuel leaking past seals under partial vacuum into the combustion chamber.
White smoke may also come from water leaking past the injector seals, which is common in this engine.
Therefore, check for error codes from the ECM. If there are none the problem is likely injector seals, not
faulty fuel injectors. If there are error codes indicating injector failure, that section of the engine should
be checked first. In my case there are no injector error codes.
Edited by chilby, 03 January 2013 - 01:49 AM steve - Like This
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Routine Service – Things to help:
Fuel Filter:
Posted 13 August 2012 - 09:41 PM
How to I depressurize the lines?
No need, just disconnect.
How will I know when I've got ALL the air out of the lines afterwards?
If you have all the air out of the filter the system will bleed itself.
Do I need a bung or something when I'm doing the small fuel filter back near the tank?
Didn't know there was one.
(Tank is full).
Do I fill the fuel filter under the primer (Z321) with diesel, or will it fill up when I pump to prime the
lines?
It is easier to fill the filter up as much as possible before using the hand pump to get the last of the air
out.
Do I HAVE to take off the Primer to get at the fuel filter, or is there a trick to getting the filter off?
I find it easier to remove the whole assembly and put in a vice to remove filter. Just make sure feed lines
are on correct sides of filter!!
I've got a 2002 Jackaroo with the dreaded 4JX1 engine. So have I.
Cheers, Aaron.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
22 |
Page
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
Things for a long trip:
Posted 07 January 2014 - 08:58 PM
Hi Sam,
a. ORPS with “ground” wrench
b. TPS and multimeter
c. Camshaft sensor with wiring ( usually when aircon belt breaks down it cuts off wiring to this sensor)
d. Oil and fuel filter kit
e. Cable ties big and small, few clamps, duct tape and
f.
replace a radiator cup with a new genuine one;
g. Every size water hose you can find;
h. One of the most important things to put on board is your toolbox. If you’re not a tool type person
it’s still imperative that you carry some tools. The problem always is the tool you need is the one you
don’t have.
So what are the basics?
i.
Phillips & a flat blade screw driver (preferably a mixed set)
j.
Two 10 inch and two 8 inch shifting spanners (much rather a GOOD mixed set of metric and or
imperial spanners)
k. A pair of pliers, a wire stripper and Side cutters.
l.
A hammer.
Spare Parts.
m. A range of globes for both car and van.
n. Spare A/C and fan belts.
o. Top and bottom radiator hoses and a length of heater hose. (this can be cut to suit)
p. I recommend you replace your belts and hoses before your trip, and keep the old ones for spares.
q. Extra engine oil and extra coolant (water can always be used in an emergency)
r.
A full size spade, a small camp spade, an axe and a tomahawk are always handy assets even if you
don’t plan on leaving the black top.
Cheers
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
23 |
Page
Manual Jackaroo 4JX1 Engine - April 2014
[Sunday, May 18, 2014]
Hi,
There has been a lot of time put into this collation and collection of information, and there are another
almost 100 pages, which are available.
If you wish to have these, as are detailed on the index above, please e-mail me for a copy.
COST is $A20
Rob
piper.pa30@yahoo.com
Quote file: d:\5 - personal\1 - car\jackaroo\manual + documents\manual\jackaroo 4jx1 engine - manual 2014 ver 4.0.doc
24 |
Page
