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Topic: exhaust manifold gaskets (Read 577 times) |
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john_smiffy
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exhaust manifold gaskets
« on: May 20th, 2006, 1:29pm » |
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hi all
I'm going to change my exhaust manifold gaskets tomorrow are there any problems i should look out for
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Baz
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S Reg. 1998 24v Cosworth S2.9 COS (Deceased)
Posts: 4009
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Re: exhaust manifold gaskets
« Reply #1 on: May 20th, 2006, 1:38pm » |
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Don't do it after the car has been run....they be hot!!
Seriously though, you may get to break a few nuts or studs. You may need to heat them up to get them off easily....why are you changing them?
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john_smiffy
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Re: exhaust manifold gaskets
« Reply #2 on: May 20th, 2006, 1:50pm » |
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the gaskets are blowing a bit
the exhaust is all ok there dont seem to be any cracks in the manifold but have 2 spare ones on stand by in case i need them
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caterex
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Re: exhaust manifold gaskets
« Reply #3 on: May 20th, 2006, 2:12pm » |
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If it is the 24V, disconnect the EGR valve at the diafram end and try not to disturb at exhaust.(very difficult to re-aline)good fitting sockets,10,13,15mm,and (6BA stud replacement),spare nuts,gaskets.Where the CAT flange meets the down pipe,loosen from underneath (two extension bars 15mm socket)
A set of ramps are necessary, a hoist is ideal.
Easy job take your time.
FRED
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Paul B
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'98 24V Ultima saloon
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Re: exhaust manifold gaskets
« Reply #4 on: May 20th, 2006, 3:16pm » |
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If the 'blowing' is where the manifold meets the block, then I don't think you'll have too many problems. Those nuts seem to come undone pretty nicely and don't chew up either.
If its where the manifold meets the downpipe, you could be in for trouble. Rapped knuckles, rounded and/or snapped nuts/studs seems pretty normal.
In either case, access can be a problem.
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Two hundred & seven horses and only one jockey!
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Spannerdemon
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Re: exhaust manifold gaskets
« Reply #5 on: May 20th, 2006, 7:21pm » |
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Give the whole lot a REALLY good spraying of WD40 overnight before you do the job. Like, really soak it. This will help to penetrate and hopefully loosen up the bolts & studs etc. It's amazing how effective this is, and the longer it soaks in, the better.
Put an old tarpaulin or something under the engine if you are worried about spoiling a driveway . Weight it down with a few bricks.
Obviously don't spray it on unless the manifold is absolutely COLD!! 
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john_smiffy
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Re: exhaust manifold gaskets
« Reply #6 on: May 21st, 2006, 6:45am » |
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cheers for info its a 2.9 12v
its were the manifold meets the head
have been soaking nuts with wd40 for 3 nights
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howiedintheplace
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Based near Evesham
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Re: exhaust manifold gaskets
« Reply #7 on: May 21st, 2006, 8:41am » |
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The 12V manifolds are easier to work on then the 24V but the nuts tend to be harder to remove. Just take your time & try not to be heavy handed unless you have to.
Soaking in WD40 is a good start 
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Dave
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john_smiffy
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Re: exhaust manifold gaskets
« Reply #8 on: Jun 2nd, 2006, 6:37pm » |
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just an update found out why its blowing nearside ex manifold had 2 broken studs at back i managed to get 1 out the other is snapped in the head so drill and tap time is ahead
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john_smiffy
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Re: exhaust manifold gaskets
« Reply #9 on: Jun 4th, 2006, 11:14am » |
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all done it ok now fitted new studs and nuts while i was at it
total price for gaskets from fords & studs and nuts from local factor's just under £20
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SteveS
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Re: exhaust manifold gaskets
« Reply #10 on: Jun 4th, 2006, 8:36pm » |
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Hi John,
It's good to know things can be fixed on the scorpio and for a reasonable price too.
Your success has inspired me to give my "no spark" problem a serious go tomorrow.
SteveS.
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john_smiffy
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Re: exhaust manifold gaskets
« Reply #11 on: Jun 4th, 2006, 8:51pm » |
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cheers steve
hope you get those electics sorted
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