skimming exhaust manifolds

[daz the plumber]

does any one know who can skim the exhaust manifolds in the east mids, ive asked a couple of tvr garages who did not want to give me a answer .

[spend]

Ring round local engineers?

[clive f]

you`ll probably find that no one will want to try this, for a start, to skim them they would have to be clamped down onto the bed of a milling machine, how can that be achieved when you consider the pipe work underneath the faces that want skimming, and it`ll vibrate like mad whilst they were being skimmed, even if it were possible to clamp them in the first place.
the most important bit is knowing the datum point for setting them up level, otherwise if you took a small skim one end, and it was thicker at the other, when you put the manifolds back on the car, your y piece will either not fit between the flanges, or it`ll be nowhere near them!!

surely you can just clean the faces lightly using a hand grider with a sanding disc in it, say 60 grit, providing you dont get carried away you should be able to remove any lumps of rust and not take any actual good metal away?

much cheaper to.

[2Munkys]

Just run a large flat file over 'em.

[trackcar]

Angle grinding to start with then draw filing the last bit is my preferred route too

Edited by trackcar on Wednesday 15th October 08:56

[That Daddy]

2Munkys said:

Just run a large flat file over 'em.

This worked for me,and have had no problems with gaskets breaching

[TVRPierre]

A friend of mine used a belt sander - cured his problem