farmall m manifold

ohiojim · Apr 17, 2013

the M has a worn out exhaust manifold where the pipe goes in, can only get a couple threads on one side, anyone have a fix for this or is a new manifold in order,...i have a tap but no reamer...

JMOR · Apr 17, 2013

(quoted from post at 10:06:53 04/17/13) the M has a worn out exhaust manifold where the pipe goes in, can only get a couple threads on one side, anyone have a fix for this or is a new manifold in order,...i have a tap but no reamer...

just welded pipe to manifold on my SMTA

S2710 · Apr 17, 2013

If you have a tap I would chase out the old threads and go deeper and try to get some threads all the way around. After you get some threads maybe not real deep get a new piece of pipe with good threads and screw it in tight. Don't over tighten it because it will pull the threads. After you run it a little it will rust in place.

Bob

rustyfarmall · Apr 17, 2013

The threads might actually still be there. They are just full of carbon and rust. If you have a O/A torch, put the big brazing tip on, and then heat up that area of the manifold on the inside. You should be able to make at least some of that carbon go away. Then use a pipe tap.

Big Fat Herb · Apr 17, 2013

I have a 2" pipe tap for them but honestly get along better with a dremel tool and try to clean up the threads a little

wilson ind · Apr 17, 2013

what is an oa torch? I use Harris mostely and like them.

robgIN · Apr 17, 2013

oxygen/acetylene

ohiojim · Apr 17, 2013

i have a tap, just not enough threads left to work with.....

mkirsch · Apr 17, 2013

You can't drill a hole smaller so the only options are to weld the pipe in or replace the exhaust manifold.

farmall m manifold

ohiojim

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JMOR

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S2710

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rustyfarmall

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Big Fat Herb

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wilson ind

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robgIN

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ohiojim

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mkirsch

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