Question about Isuzu i-280

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280D 4JB1 INJECTOR PUMP TIMING SETTINGS

NEW MOTOR FITTED, ENGINE TURNS BUT VAN WON,T START.

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  • mig86 Dec 20, 2008

    i replaced distributor shaft and now crancks but wont star

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This kin of problem you have to fix along with the ignition timing bout the injector pump and the timing has to be in the same position.if one of them is off the time is not kena worke.

Posted on Jun 08, 2008

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2 Answers

How do I connect alternator wires on Isuzu 4jb1.i fitted a new alternator and wires are not so obvious becoz theres no one way connector


there a several types of alternators fitted
csn understand why the alternator is difficult to fit with the plugs your isuzu has

if it isnt the right connections re check the part number and type

link as a guide only

http://www.aliexpress.com/promotion/promotion_isuzu-4jb1-alternator-promotion.html

Jun 08, 2016 | Isuzu Cars & Trucks

1 Answer

How do you bleed a diesel pump jeep Cherokee turbo diesel 3.1 5 cylinder 2001


we dont have this engine here, USA.
but i have the WG jeep book,
starting page 12 , chapter 14


FUEL INJECTION PUMP BLEEDING
(1) If the fuel injection pump has been replaced,
air should be bled at the overflow valve before
attempting to start engine.
(a) Loosen the overflow valve (Fig. 18) at the
rear of the injection pump.
(b) Place a towel below the valve.
WARNING: WHEN CRANKING THE ENGINE TO
BLEED AIR FROM THE INJECTION PUMP, THE
ENGINE MAY START. PLACE THE TRANSMISSION
IN NEUTRAL OR PARK AND SET PARKING BRAKE
BEFORE ENGAGING THE STARTER MOTOR.
CAUTION: Do not engage the starter motor for
more than 30 seconds at a time. Allow 2 minutes
between cranking intervals.
(2) Crank the engine for 30 seconds at a time to
allow air trapped in the injection pump to vent out
the fuel injector drain tubes. Continue this procedure
until the engine starts. Observe the previous WARNING
and CAUTION.
(3) Tighten overflow valve.
HIGH-PRESSURE FUEL LINE BLEEDING
WARNING: THE INJECTION PUMP SUPPLIES HIGH-
-PRESSURE FUEL OF APPROXIMATELY 45,000 KPA
(6,526 PSI) TO EACH INDIVIDUAL INJECTOR
THROUGH THE HIGH-PRESSURE LINES. FUEL
UNDER THIS AMOUNT OF PRESSURE CAN PENETRATE
THE SKIN AND CAUSE PERSONAL INJURY.
WEAR SAFETY GOGGLES AND ADEQUATE PROTECTIVE
CLOTHING AND AVOID CONTACT WITH
FUEL SPRAY WHEN BLEEDING HIGH-PRESSURE
FUEL LINES.
WARNING: DO NOT BLEED AIR FROM THE FUEL
SYSTEM OF A HOT ENGINE. DO NOT ALLOW FUEL
TO SPRAY ONTO THE EXHAUST MANIFOLD WHEN
BLEEDING AIR FROM THE FUEL SYSTEM.
Bleed air from one injector at time.
(1) Loosen the high-pressure fuel line fitting at
the injector (Fig. 19).
(2) Crank the engine until all air has been bled
from the line. Do not operate the starter motor
for longer than 30 seconds. Wait 2 minutes
between cranking intervals.
(3) Start the engine and bleed one injector at a
time until the engine runs smoothly.

end quote.
pump timing is on next page
or tank filter line priming before. above.

Mar 22, 2016 | Jeep Cars & Trucks

1 Answer

Need diagram for timing marks gear driven for isuzu 2000 4jb1


no year, no car stated.
cam or fuel pump timing, HARK?
so we must look that up and find answers lacking the first 2 questions?
and we are uSA forum and have no such engine.
so you be timing the cam... ever google that.
but, but.... wait... i can google stuff....

wiki shows:
the 4JB1 is a 2.8 L (2,771 cc) 93 mm bore, 102 mm stroke direct injection diesel engine. It was used in the Isuzu Bighorn (Trooper), Mu (Rodeo), Wizard (LWB Rodeo), Rodeo Pickup and Holden Jackaroo sold in most world markets aside from North America until the early 1990s. Stock power was 87 PS (64 kW) in the 1989 Isuzu Trooper.[7] Industrial versions of this motor were also sold in Isuzu light trucks.

OMG. 800 hits at:

4JB1 site:http://forum.planetisuzoo.com/

its there and the book pages, pdf
1st link.... amazing huh?

Sep 09, 2015 | Isuzu Cars & Trucks

1 Answer

I changed the fuel pump but the van still won't


And you know the fuel filter is good? Could be injector problem: just as a check, spray some starting fluid into the intake and see if engine runs a few seconds. If it does, it is a fuel problem. Check injector fuse, as a start. Check fuel pressure. Check injector circuit. If engine won't start with starting fluid, check if you are getting spark. Problem may be in the ignition system.

Aug 13, 2013 | Cars & Trucks

1 Answer

85 toyota efi 3y-ec van won't start although have


have to clean pipe line which is going from fuel tank to engine

Mar 20, 2013 | Cars & Trucks

1 Answer

Hi there I have gmc safari van 1996 replaysd fulepump pump is running but the motor won't star sprayd some braick cleaner in to air intake it starts what can that be can the pump give not enough...


If you replaced the pump with a new pump it is unlikely you have 2 dud pumps, if it was a second hand pump or a different type of pump then you need to test the pressure.
The problem sounds more like the injectors are not pulsing, you need a tester to plug into the injector harness that will flash a light each time the injector pulses. These are cheap and available from good auto shops. It won't fix the problem but at least you will know where to look or not to look.
Hope that helps

Terry

Nov 25, 2012 | Cars & Trucks

1 Answer

I have 94 e250 5.8L van 4x4 and it won't turn over


Hi Nick:
You wll have to pinpoint what the engine is missing...
- Spark
- Fuel
- Compression

All three of these are tested when the engine is being cranked over. There are two way of checking for fuel. Fuel pressure and fuel trigger. Both are very important and must be present for the engine to start. Fuel pressure is self explanatory. You just hook up the gage and see what the reading is. Fuel trigger is check with a noid light. The injector gets unplugged and the noid light gets plugged in to the injector clip. With the engine cranking over, this light must blink. This is the signal to the injectors from the computer. You can have all the fuel pressure in the world, but it wont matter if the injector is not pulsing gas into the cylinder like it should.

Compression tester, spark tester, fuel pressure gage and noid light are all accessible at your local auto store. All three tests play a very important part in diagnosing a no start condition. Be extremely careful when doing these tests.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Feb 09, 2012 | 2002 Ford E250

1 Answer

Replaced the Fuel Delevery System/Pump and the in-line fuel filter on my 93 GMC Vandura Van 2500. Van turnes over; however, no fuel in getting to the engine. I have checked the Fuel Pump...


install a fuel pump guage and check pressure at key on and start, it should hardly vary, it the pressure is constant check the injector signal with a noid light, while you are at it check spark(no spark no injector signal) you won't find a relay fuse

May 07, 2011 | GMC Vandura Cars & Trucks

1 Answer

I am replacing my injector pump in my 1996 Nissan Homy Van. The motor type is a TD27 ETi model and I was told that once the new injector pump was in that I needed to get it dialed or tuned up. I was...


what a load of brown stuff from male cows,just fit the pump and get the timing marks lined up .end of story ---BUT CHECK THE CAMSHAFT PULLEY these motors never used a proper keyway ,its cast into the gearwheel and wears away allowing the wheel to turn and then your valves do a uri geller trick.

Sep 18, 2009 | Nissan Minivan Cars & Trucks

2 Answers

Isuzu C223 timing


need a injector pump dial indicator to set up lift in pump (movement on dial indicator)0.05mm at correct timing mark on crank pulley 12 deg.
the above is an example for 4JB1 & 4JB1-TC
which are isuzu diesel engines

Apr 19, 2009 | 1988 Isuzu Trooper 2 Door

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