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Exhaust Manifolds *still no joy

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Old 12-10-2006, 06:41 PM
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Jasesapphy
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Default Exhaust Manifolds *still no joy

Offered my 4x4 exhaust manifold upto the head, the manifold is catching on the studs and wont pass over, the only thing i can think is bent exhaust studs but they look fine, is there any other reason.

Some holes look nearly 2mm out

Old 12-10-2006, 06:45 PM
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Lee_R21Turbo
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I had this on an exhaust manifold on a 21 turbo once - somehow the manifold had mishapen & the actual ports had moved closer together - only by a couple of mm but enough for it not to line up - I wouldnt recommend using it tho mate as the ports wont line up so they may offer some restriction which I doubt you'd want!!!
Old 12-10-2006, 06:49 PM
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GARETH T
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you really gotta make sre all your studs are straight ans square
Old 12-10-2006, 07:01 PM
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All mine were straight......I'd compare the two manifolds you've got....I bet you find they dont line up together!!!
Old 12-10-2006, 07:26 PM
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Jasesapphy
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think i will try some studs and see about a manifold
Old 13-10-2006, 12:10 PM
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Found any good exhaust studs for it ?

All the ones I have found are only threaded about 6mm yet the head is taped to a depth of approx 15
Old 13-10-2006, 02:21 PM
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Ordered from ford at £2 each

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Old 13-10-2006, 06:35 PM
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16 new exhaust studs and still wont go over, do 4x4 manifolds warp or is there another reason
Old 13-10-2006, 06:38 PM
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Helloooooo......anybody there......the manifold will be bent/warped/goosed like I've said - you need to compare two manifolds...then you will see!!!
Old 13-10-2006, 06:39 PM
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dave cos4x4
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have you tried taking the studs out of the head,lining the manifold up and putting a stud one at a time in.

does it line up.
Old 13-10-2006, 06:43 PM
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Lee_R21Turbo
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Dave....hows that gonna make a difference?? You on the pop already???
Old 13-10-2006, 06:56 PM
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Jasesapphy
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I think your right Lee, its off a escort cossie, must be bent
Old 13-10-2006, 07:10 PM
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Jase....try measuring the gaps inbetween each port - I bet at least one is at least 1/2mm out - mine was that much out you could see where they had closed up - my guess is it has been :-

Run either without a damper or with a broken one so theres been stress on it

or without enough exhaust studs...

or both!!!
Old 13-10-2006, 07:47 PM
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Originally Posted by Lee_R21Turbo

Run either without a damper or with a broken one so theres been stress on it

or without enough exhaust studs...

or both!!!
4x4 manifolds don't use a damper and I would be amazed if it had bent so far!

steve
Old 17-10-2006, 11:52 AM
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Originally Posted by Jasesapphy
Ordered from ford at £2 each
How long is the thread lenght on each end ?

Cheers,

WD
Old 17-10-2006, 12:44 PM
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Lloyd
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do as dave said, put the manifold to the head,then screw in the studs.
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