I need timing diagram for Isuzu 4JA1 engine - Isuzu Cars & Trucks

SOURCE: Timingbelt position

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

SOURCE: 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,

Simon

• 235 Answers
• Posted on Aug 25, 2009

SOURCE: Isuzu bighorn diesel 4jg2 engine timing diagram

http://www.jeepolog.com/UserFiles/downloads/trooper_manual.pdf

This site has it .

SOURCE: i need diagram for 2.2 l for isuzu rodeo timing

My sincere apologies for the delayed response.
I am personally going back to answer your unanswered questions.

I do not know if you still need this information, but I am going ahead and answering it anyway. You may want to Print the Diagrams for future use.

CLICK on the following 2 LINKS. They have the Serpentine and Timing Belt Diagrams you will need.
If you would: Before Clicking: Let me know if this helped you, or if you have any additional information or questions. Feel Free to contact me at FixYa.com!
Again my apologies:
For the Serpentine Belt:
http://www.2carpros.com/car_repair_information/year/1998/make/isuzu/model/rodeo/1998_isuzu_rodeo_drive_belt_routing_diagram.htm
For the Timing Belt:
http://www.2carpros.com/car_repair_information/year/1998/make/isuzu/model/rodeo/1998_isuzu_rodeo_timing_belt_diagram_marks.htm

SOURCE: 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.