can your get an iron exhaust manifold planed?
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daimlerman
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I would not attempt to plane one,I would be asking for the thing to be 'surface ground flat',myself!
Youth is wasted on the young.
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gareth
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No need at all malc, a fly cutter will do the job just fine, as it does on cylinder head faces.
Surface grinding a manifold is overkill of the highest order!
Surface grinding a manifold is overkill of the highest order!
Sole founder of Fe2O3-12V it's a lifestyle

LSD rebuilding / modification services provided, PM for details

LSD rebuilding / modification services provided, PM for details
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daimlerman
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I have'nt a clue!
My answer is based on dealing with a warped manifold about 20 years ago,when I was running an E28 520i that pulled three studs out.
I'm happy to plane timber,but my plane does not go near metal,it makes an 'orrible mess of the blade.
My answer is based on dealing with a warped manifold about 20 years ago,when I was running an E28 520i that pulled three studs out.
I'm happy to plane timber,but my plane does not go near metal,it makes an 'orrible mess of the blade.
Youth is wasted on the young.
- Brianmoooore
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Having a branch of the family heavily into all things CNC, I can answer this one. Fly cutter is a blade similar to that which would be held static against the rotating workpiece in a lathe, but is mounted on a rotating wheel instead. With the workpiece moved against the rotating cutter, it will just cut a circular groove in the surface, but if either the cutting wheel or the workpiece is moved around, the whole surface will be ground flat.
A surface grinder is similar in principle, but substitutes a (usually) cup shaped grinding wheel for the fly cutter.
A surface grinder is similar in principle, but substitutes a (usually) cup shaped grinding wheel for the fly cutter.
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capri_rob
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yes you can - had mine done by the machine shop who sorted the head test/skim/rebuild out - they said its a bit of a pig to do but its doable.

e30topless said : Proper BMW's have 4 headlights, last of the run was the E30 and E34/E32 anything after that is just complete shite
Clamping the manifolds is awkward but other than that, it's a very basic task and it's the same as skimming a head or block.
I skimmed the cast exhaust manifold on my TD5 Defender twice as they kept warping and snapping studs. Fitted an aftermarket one then though and had no more issues
Machined an M42 manifold that a friend warped when he got it welded too and was perfect afterwards.
I skimmed the cast exhaust manifold on my TD5 Defender twice as they kept warping and snapping studs. Fitted an aftermarket one then though and had no more issues
Machined an M42 manifold that a friend warped when he got it welded too and was perfect afterwards.
M42 rightness above 6500rpm, nobody can hear you scream
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davethegoat
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It doesn't help the OP much, but I've used these guys for cylinder heads. A manifold would be a piece of wee I'm sure. http://www.precision-lapping.co.uk/ Pity manifolds are heavy and expensive to post!

