1990 Exhaust Manifold Passenger Side Flange???
 

I'm trying to install the drivetrain into EX5023 and have a question.

I have 1990 exhaust and there is a flange on the passenger side of the exhaust. There is NO FLANGE on the exhaust manifold. HOW DO THE TWO ATTACH???????????

Does anyone have a picture of the two pieces mating together?

It seems that there would be a sleeve with a triangular flange attached that would clamp to the exhaust manifold and then attach to the traingular flange on the exhaust. If so, I would like to buy one from someone.

Thanks
Brett

Re: 1990 Exhaust Manifold Passenger Side Flange???
 

Brett,
It seems like you are missing part of the exhaust manifold. The two should mate up together with a gasket between them. The gasket part # is 10147973 from GM. I'm not sure if this is still available. If it not I have a couple available.
Hope this helps, Dennis

Re: 1990 Exhaust Manifold Passenger Side Flange???
 

You probably need a ball flange....I had to set that up on my 90 also

http://www.autopartsdealer.com/magna..._content=rank6

Re: 1990 Exhaust Manifold Passenger Side Flange???
 

Thanks Dennis. Lee, the driver's side has a ball flange but the passenger side exhaust pipe just has the triangular flange. I can see on the flange where a gasket has been. It looks like a I need a sleeve with a flange welded to it to go onto the CAT. The sleeve would attach with a clamp.

Does anyone know if this is how the stock setup is?

Re: 1990 Exhaust Manifold Passenger Side Flange???
 

The ball would go into that flange...pic would help

Re: 1990 Exhaust Manifold Passenger Side Flange???
 

Here is what I have o work with, so far.

I have a ball flange on the driver's side of the CAT with the matching type of ball flange on the pipe exhaust. They meet up good. The flange on the passenger side exhaust pipe is "flat" flange though. Not a ball type. It's had a gasket on it before as well for another flat flange. Hope this helps???

Someone surely has a pic of the flange on the CAT??

Like this. You can see the flange and sleeve.
http://i53.tinypic.com/72t2s7.jpg

Re: 1990 Exhaust Manifold Passenger Side Flange???
 

Mine shows just a slip fit on the P/S

Re: 1990 Exhaust Manifold Passenger Side Flange???
 

Here is a pic of the CAT that looks like miine. My CAT does slip into the pipes but what would hold it besides the triangular flange? A clamp, maybe?

http://i54.tinypic.com/2801w5j.jpg

Re: 1990 Exhaust Manifold Passenger Side Flange???
 

Another TRiagle held in place by a flared pipe for DS

http://i134.photobucket.com/albums/q...f/DSCN3809.jpg

Re: 1990 Exhaust Manifold Passenger Side Flange???
 

That must be the problem. I'll have to have a sleeve/flange fabbed up at the muffler shop.

Thanks, Lee!!