Question about 1995 Isuzu Pickup

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Timingbelt position Hi there can you help me with replacing my timing belt of an isuzu engine. the engine # is 4JA1. I took it out but i can't replace the new one.

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AFAIK, isuzu 4JA1 has no timing belt. it is a gear drive timing system.

Posted on Jun 07, 2008

  • shety May 24, 2011

    hi there! can you help me regarding my newly bought 2nd owned isuzu hilander? the problem is i feel some air pressure coming from the hole where the oil dipstick is and whenever i used to drove it in long drive specially during hot and humid day and i try to stop to check on it and pull the oil dipstick gauge i notice a white smoke coming out from it and there are times that the dipstick itself is push upward which i believe was due to the air pressure coming out from it. tnk u hope u could help me with this....



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I need timing diagram for Isuzu 4JA1 engine

posted 2 times now. left out CAM.
we are USA form, we are not African
we dont have KB trucks. here.
no books.

search ,get lucky.
here is a fixya search
see any thing.

last i look for this engine on web
and find this book,
page 23 is injection timing'

page 100 cam timing,(pdf page)
4ja1 and 4jb1.

Jan 04, 2017 | Isuzu Cars & Trucks

1 Answer

How do I set 2012 Isuzu 4ja1 engine timing gears. Send pics

2012 something,
NO CAR actually stated !
books by year and name.

try this? use google and pray no lies?
ever google, we can do it for you, see?

i looked and it seems the JA and JB have same gears
(crossing fingers)
so first google hit lands

best i can do, with NO CAR stated.

Feb 27, 2016 | Isuzu Cars & Trucks

1 Answer

I need Torque settings for a isuzu 4ja engine please

what car? and model or truck....all that, is how data is INDEXED
what year?
what country.?
4ja what.
please !

Nov 27, 2015 | Isuzu Cars & Trucks

2 Answers


faulty crank no doubt .

Aug 28, 2015 | Isuzu Cars & Trucks

1 Answer

Does the Isuzu Crosswind XUV 2003 model uses a timing belt or chain?

2.5 liters? No engine stated. so....... i guess, for you.....
4ja1 (what is the letters at the end, T or TC? or L)

the diesel is gears. try to buy rebuilt head, and see it.
first google hit is the shop manual.

it's all there to see,

gears in the front timing case. gear case

here is the cam for proof.

25672895-ienyzeqt2biawxusaiorxu0m-2-0.jpg end easter egg hunt.

Apr 30, 2015 | Isuzu Cars & Trucks

1 Answer

Timing marks for 2.5 isuzu diesel pumo

Freek Rohrbeck wants answers to this question
are so lazy you cant start your own post?
1: no country stated.
2: no year (1990?)
3: no engine, (freeks engine) not ANON. 2.5 Diesel.?
4: we dont have PUMO in usa, so where are you?
5: timing a cam, or timing a fuel pump, how can we guess that?

ahhhhhh PUMO is PUMP ????? wow. prefect place for a typo..

its no USA "pickup" at all.
2.5 L 4JA1-T
is this your true engine name
if yes, google it and find free facts (or endless lies)
there is turbo , non turbo and twin turbo, on newer cars)

here we can google all day

May 08, 2012 | 1990 Isuzu Pickup

1 Answer

Hi there! can u help me regarding my 2nd owned isuzu hilander with 4ja1 engine. this pertains to the oil dipstick lever because during the course i drove the vehicle in long drive specially during hot and...


May 25, 2011 | Isuzu Pickup Cars & Trucks

1 Answer

My isuzu 4JA1 engine tends to exhaust white smoke

White smoke means that you have a coolant leak. Two possible causes for that - either the head gasket is punctured and must be replaced or the head itself is damaged and must be welded by an expert. 
Either way the engine must be dismantled to make a full diagnose and repair.

Aug 02, 2010 | 1995 Isuzu Pickup

1 Answer

Engine swap

The 4JX1 used the 4L30-E automatic transmission behind it...I think the 4JA1 has a different centerline measurement on the bellhouseing.. if thats the case an adapter plate would be needed.
It can be done, but it's probably not going to be cost effective,

May 23, 2009 | 1999 Isuzu Rodeo

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