C-Fast idle problems solved, new exhaust nipple next

MK in Ontario · Apr 20, 2011

A new condensor and set of points in the mag cured the fast idle
problem. I think it was the condensor, because the old points
looked good as the new, but they came together. No more
stumbling. Now it's time to replace the exhaust extension nipple.
I've read some previous threads detailing it. Much as we had been
thinking. We were also thinking about heat, but were concerned
about the possibility of the manifold cracking if it got too hot.
Would it be better to just go with cutting it out? Thanks for the
help. MK

rustyfarmall · Apr 20, 2011

(quoted from post at 08:13:46 04/20/11) A new condensor and set of points in the mag cured the fast idle
problem. I think it was the condensor, because the old points
looked good as the new, but they came together. No more
stumbling. Now it's time to replace the exhaust extension nipple.
I've read some previous threads detailing it. Much as we had been
thinking. We were also thinking about heat, but were concerned
about the possibility of the manifold cracking if it got too hot.
Would it be better to just go with cutting it out? Thanks for the
help. MK

I would not use a torch to cut it out because you stand the chance of doing damage to the manifold. Cut the old pipe flush with the manifold using a hacksaw, and then using just the hacksaw blade, cut a vertical slot in the remaining portion of the pipe, but do not cut into the manifold. You should then be able to place a punch or chisel against the top of the pipe, strike it with a hammer and begin folding the pipe inward until you can get a prying tool in between the pipe and manifold to finish the job. If you can get a good portion of it folded inward, you should be able to start un-screwing the pipe from the manifold. It might be fairly easy, but more likely it will fight you every step of the way.

Janicholson · Apr 20, 2011

I'll add to Rusties idea. If yoy make two cuts parallel to one another through the remaining pipe the punch will just need to curl out a small section and it is much less difficult/ Sawsall are your friend/ Jim

MK in Ontario · Apr 20, 2011

Thanks gentlemen. Will do. MK

mkirsch · Apr 20, 2011

You may not even need to do any cutting inside the threaded area.

Leave the pipe a bit "proud" of the top of the manifold. 1/2" should be plenty.

Take a large cold chisel, and with the cutting edge vertical, tap it into the protruding pipe.

Usually the pipe is corroded enough that it will collapse and peel away from the threads without damaging the manifold.

C-Fast idle problems solved, new exhaust nipple next

MK in Ontario

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rustyfarmall

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Janicholson

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MK in Ontario

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mkirsch

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