4JB1-T parts diagram

billyvanboheman · Post by **billyvanboheman** » Sun Oct 29, 2006 9:34 pm

Does anyone have a parts breakdown with diagrams for the Isuzu 4JB1-T engine, I am trying to work out a couple of things on mine.

1. Is what the butterfly set up that is vacume driven between the Exhaust manifold and front pipe flange.

I have tried to get a photo of it but it's well tucked away.

2. Whats what on the EGR system as I would like to get rid of the excess.

Cheers

Alex.

Aaron · Post by **Aaron** » Mon Oct 30, 2006 8:57 am

The butterfly in the exhaust is for the cold running setting, when you press the button on the right of the steering wheel (the one that looks like an engine with a coil in it) it closes the valve to increase the exhaust back pressure to heat the engine up faster.

For the EGR either just remove the vacum hoses and plug them up or remove the EGR valves off the inlet manifold and make up a blanking plate. :wink:

billyvanboheman · Post by **billyvanboheman** » Mon Oct 30, 2006 10:08 pm

Cheers for the info Aaron.
Re the cold running butterfly, any ideas why its run of a vacume servo behind the pump via a cable?, complicated set up for what it is??.

I would still like to see a breakdown of the parts if any one has one.

Aaron · Post by **Aaron** » Tue Oct 31, 2006 7:18 am

I see you asked the same question on club isuzu and got the same reply.
What more do you need to know.

billyvanboheman · Post by **billyvanboheman** » Tue Oct 31, 2006 6:19 pm

Aaron wrote:I see you asked the same question on club isuzu and got the same reply.
What more do you need to know.

As an x parts rep for a few different franchises I like to be able to visualise all the bits before I go digging into things, would just like to see a breakdown of the engine if anyone has one.
I might just drop into old work in Blenheim when I am up there next and see if they have the cataloge on line yet ,or if they still have the old partrs books I used to use.

Aaron · Post by **Aaron** » Wed Nov 01, 2006 7:15 am

I allways find pulling something apart and looking at it is a good way to learn :lol:

Maddog · Post by **Maddog** » Wed Nov 01, 2006 6:05 pm

you would be welcome to look at mine if you need to see what the finnished article looks like,i didnt do the job ,so ont know what was done ,but it could give you an idea.
photos my not tell the full story.

billyvanboheman · Post by **billyvanboheman** » Wed Nov 01, 2006 6:08 pm

cheers for that, I will take you up on that, if you want just E-Mail or PM me what area of CHCH you are in so I know if you are just around the corner or a weekend type visit.