WTB: Exhaust Manifold Options

[kerosene]

I need a uncracked Exhaust manifold with an o2 sensor hole drilled....theres new ones on ebay for 85 bucks, but im wondering maybe someone has a used one that i can grab off them.... I need it for a 94' Celica ST 7aFe engine, no modifications or anything

This post has been edited by kerosene: Jul 18, 2007 - 11:34 AM

[6strngs]

what I'm saying is. the exhaust manifold can be taken apart into two pieces. the part that connects to the enine, and then there is a catalytic converter for the bottom part. if only your top part is cracked, then you only need to replace that. the 2nd O2 sensor plugs into the bottom part. why don't you pull off the heat sheild covering the top part and see if you can see any visible cracks? it's only like 6-7 12mm bolts

if you can't see any, pull the whole thing off. you'll need to disconnect the exhaust (3 bolts, use WD-40 or PB blaster on these and let it soak for a couple minutes, because they will be kinda rusted). then you just unbolt it from the engine and there might be one or two brackets on it too (there was on mine, but I have a 5sfe). pull the whole thing out, see if you see any cracks. if you do, look in the phone book for a blacksmith, they should be able to weld the cracks up. otherwise, ask an exhaust shop, they might be able to weld a crack up, just not weld a steel bung onto a cast iron manifold.