I was just putting in a new oxy sensor yesterday when I noticed that I've got a crack in my stock extractors :rant: . Yet another problem! This seems to me a good time to put iin aftermarket extractors, but as I have no money I won't be able to affrd this for a while. I was wondering if the crack should pose any problems for about a month or so. Any help would be great thanks.

Hi, If you mean the cast iron manifold, it is common for cracks I've had a crack in my one for about 3 years no worries

Cheers thanks for that. Yeah I'm talking about the cast manifold.

yeah they do have a tendancies to crack, itll just sounds crap and might have a small drop in performance, it shouldnt stop you from driving until you upgrade though.

If the crack is small, hairliine crack it shouldn't be too much of a prob. U can always brush and sand it clean, apply some mufler putty, and the clamp a tin can over it to cover the lot - if practical. This will seal it for months to go until u r ready to install real headers.
Stock exhaust manifolds are not really called headers.... :)

I have one in the same spot :rant:

Go to thew wrecker and grab another. Just check that the face of the manifold that joins the head is straight and true.

Clean it up with a wire brush and then paint with some high temp paint. Bingo like new.

The only catch is if a bolt snaps whilst undoing it :rant:

cracks in exhaust manifold can cause the O2 sensor to misread with a higher oxygen reading and this will make the EFI run richer mixtures.

Go to thew wrecker and grab another. Just check that the face of the manifold that joins the head is straight and true.

Clean it up with a wire brush and then paint with some high temp paint. Bingo like new.

The only catch is if a bolt snaps whilst undoing it :rant:
Good idea didn't think of that thanks. :thumbsup:

The only catch is if a bolt snaps whilst undoing it :rant:

One of the main reasons i avoid doing things my self. I had bad experiance with my old VB. We were taking the heads of then SNAP!!. About 6 of them broke and it was a bastard removing the studs from the block.

Even putting the heads back on. We snapped a few bolts again.

One of the main reasons i avoid doing things my self. I had bad experiance with my old VB. We were taking the heads of then SNAP!!. About 6 of them broke and it was a bastard removing the studs from the block.

Even putting the heads back on. We snapped a few bolts again.

Six of them.

You poor, poor bastard.