Skimming exhaust manifold

Skimming exhaust manifold

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Discussion

del mar

Original Poster:

2,838 posts

198 months

Thursday 4th May 2017
quotequote all
Evening,

Following my manifold leaks I am ready to replace them with the ss ones I had made 3 years ago.

All excited and ready to go .......

They are 3 port with turbo outlet, and the cnc cut plate that mates to the engine has warped slightly with the heat. I can't really take them back after all this time.

All three ports are connected, I did wonder if removing the "webbing" between the three ports therefore leaving them as three singles might allow a "release" and make each one easier to bolt down ?

If not I probably need to skim about 1-2mm across the mating surface

I appreciate the cost and hassle of clamping / holding the manifold steady whilst the cutter is passed over it, but does anybody know an engineering shop that would do it ? Preferably in Kent but will post if need be.

The gaskets are layered metal so may take up some slack but I only want to do the job once.

Thanks

Del

stevieturbo

17,229 posts

246 months

Thursday 4th May 2017
quotequote all
Without seeing actual design, impossible to say.

And splitting the sections could make things better....or much worse. You simply wont know until you cut them.

If you knew someone with a large belt sander, you could hold it up to that for surfacing. But most machine shops will make a song and dance about how hard it is to clamp down to surface.

Which is odd...as many years ago I had a friend ( now deceased ) who worked in a machine shop, and he said it was dead easy for any he done for me.
I tried to get one done at a shop some time after his death, and it was as if I was asking them to build a new Titanic.