Removing threaded pipe from exhaust manifold

Motorcraftman · Mar 1, 2011

This message is a reply to an archived post by Billy Shafer on September 25, 2010 at 07:26:53.
The original subject was "Re: Removing threaded pipe from exhaust manifold".

Hi... Billy, i have a One Cyl Wisconsin that has about One inch of what was once a muffler Pipe... waht Info. could You give me on this,,, Obviously I have tried the soaking fluids mentioned here Thanks Larry KF4LKU

greygoat · Mar 2, 2011

You're going to have to heat it!
I then use an "Internal pipe wrench" that
expands to grip and screw it out. I "Think"
mine is a Crapsman, (It's 5 degrees here in
Wisconsin, this morning...too cold to go to the
shop and check)
An "easy out" would work , on the heated fitting,
but who has one that big!

Kentb of SWMO · Mar 2, 2011

I had to do this on a Briggs ZZ engine. The pipe was broken almost flush with the block. What I did was to use a hack saw blade to cut two places about a 1/2 inch apart into the wall of the pipe in the port. I then took an air chisel, caught the edge on the pipe between the cuts and chisel this chunk out. Then I collapse the rest of the pipe in the port an removed it

Kent

Billy Shafer · Mar 4, 2011

Sorry for the delay. Been busy getting a new shop ready to open.

The way I do it. Heat the pipe up until it glows. Then with a punch and hammer. Fold the pipe in on itself. It will fall out without damaging the manifold. The hacksaw blade works well. Just be careful not to damage the threads.

Removing threaded pipe from exhaust manifold

Motorcraftman

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greygoat

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Kentb of SWMO

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Billy Shafer

Well-known Member

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