rickj

What's the easiest fix for this?
Does that liquid steel work on filling and fixing these cracks?
How do you remove exhaust heat shields to get to these cracks?

speedreed8

they are not worth fixing. get a new one..depending on the year of your car, which you didnt mention, they are about $80 www.rockauto.com

orielly auto has them also, but a little more pricey
http://www.oreillyauto.com/site/c/de...haust+manifold

gofastvette

Buy new ones...any auto parts store can help you ....might take a day or two but normally the best prices

bashcraft

They can't be repaired. You could have them welded, but they would just crack again at the weld.

Don Rickles

I've successfully had them repaired without failure.

The manifold had just a crack not a completely broken off piece. The trick was to cut a large "V" along the length of the crack. Then welding it using a nickel rod. The weld can be detected if carefully searching for it as the nickel remained "shiney". But it's been ten years now and still fine.