Front cover gasket?

[greenwolverine]

This is very useful, thanks
I have just taken apart a 4JG2 and the gasket material I found on it is paper or something brittle.

I can now take the part numbers to Isuzu marine to see if they can get me one, touch wood.

I wonder why there are more than one number under 97

So if it is paper, when fitting such a gasket, is it best to coat it with a gasket sealant of some kind?

[jellis]

i am just going to try and seal mine up with a gasket sealant, unfortunately the paper one that we used when i rebuilt the motor hasnt worked and its leaking out.

[turnturn]

Greenwolverine. The different numbers under Item 97 are for the different years of production and/or engine type.

eg. the first entry decodes to -
8-94365-688-0 = the part number
c = not sure
9005-9009 = vehicle production dates May 1990 (9005) to September 1990 (9009)
The 01 means that there is 1 required
The B means that it is for a 4JB1

[greenwolverine]

Vunderbar, thanks

Just to confirm -- the page with the key code says 4JB1/4JG2 but there is a B only at the part number
Would both blocks have similar external diameters?

[turnturn]

As far as I know the blocks are essentially the same. I assume that the series of different part numbers are for small modifications/suppliers over the years of production. For example they have used both paper and metal gaskets at various times.

[greenwolverine]

Isuzu North America isn't recognizing these numbers. They have no problem getting gaskets for the gear-driven engines but the holes are in the wrong places compared to the gasket for the belt driven G2
Is there a dealership I can contact in NZ?
I buy a lot of my parts from the UK so it's no big deal to pay a bit of postage.

I have tried to do everything right on my engine rebuild so far and don't want to take a chance at what seems to be a crucial sealing area

[geeves]

try www.4x4isuzu.com Dont know if they ship to USA but they do to Australia no problem

[greenwolverine]

They were very helpful and I received a genuine Isuzu gasket that fits my front plate

The part number on the Isuzu package is 8-97129429-1
I am typing it again to make sure I do it right: 8-97129429-1

BTW I am thinking of popping the front crank seal into the front plate while it's off the block.

That way I can put pressure downwards in a controlled way
Any objections?

[nivaman]

Best to do it when you have it apart, good plan.