I found a small hole in my exhaust manifold and it appears that it must have been patched before at some time. I would like to get a new manifold but being it a turbo 1.8 engine where can I find a new manifold?
Is this something that will need to be custom fabricated or can I buy a replacement? I searched on gmparts and couldn't find it.
Got any ideas? Heres the damage
1985 Sunbird Hatchback | 1991 Sunbird Coupe | 2002 Cavalier LS Sport
Exhaust manifolds are available through the aftermarket for some year cars. Check Ebay... believe it or not I see new manifolds there all the time. The price is around $90, iirc.
-->Slow
JBweld! jk, I did that on a jeep once but I wouldn't recommend it on a boosted car. Some exhaust shops will patch it for you, but its not as good as new and it will corrode again, I'd recommend trying to find a new one, ebay is probably your best bet IIRC a 2.0 turbo manifold will bolt up as well, may need longer bolts but it should work
<img src="http://www.geocities.com/fudd_22602/elmer-shoot.gif"> Old school Js rock
Nomad... you can use the 2.0 turbo manifold BUT.......
The flange face, the part that turbo bolts to, is on a 27.7 degree angle from verticle, for the 2.0 manifold.
The flange face on the 1.8 is 41.25 degrees from verticle.
In addition, the flange faces are offset, left to right, different on these manifolds. When using the 2.0 manifold on a 1.8, I have found that using a stock 2.0 inlet pipe to throttle body helps to correct this misalignment enough to solve the problem.
The flange angle is another problem that can be corrected by getting another exhaust downpipe made, as the stock one(s) won't align with the turbo elbow. Leaks like mad.
Sounds harder than it really is, but much easier than trying to find a 1.8 manifold in good shape. Then it will crack/burn out again. The 2.0's are cast iron, won't burn a hole it them!
Hope this helps somewhat.........
Alan
Please let us know if you find one and where. I need a spare manifold too. for my 1.8 skyhawk turbo.
And yes they crack. In my case the turbo is hanging below the manifold and the support braket for the turbo housing doesn't look very strong. Add to this the weight of the exhaust pipe.. no wonder why the manifold (which is made of steel) will fail after
some time.
There are 'high temperature epoxy'. You can try them on those small holes. maybe they will work for the time being.
