Re: IH 460 misfiring

Posted by doug stockman on March 13, 2004 at 03:15:15 from (65.229.131.246):

In Reply to: IH 460 misfiring posted by terry on March 11, 2004 at 22:01:22:

Greetings:

I just had a problem with my 1959 IH 460U. I went overboard with the solutions, but it is working well now, except I have to time the thing and there are no marks left on the crankshaft pulley.

There is a weighted shutter between the intake and exhaust manifold. The shutter basically diverts exhaust gases to preheat the intake manifold when the engine is cold. I suspect the intake manifold getting hot keeps the attached carburator from icing up. On the outside of the manifold should be a small shaft with a spiral spring. As the spring warms up, the shutter is opened so exhaust gases no longer warm the intake manifold. That little piece of spring cost about $25 (ouch). Anyway, the weight should be reachable behind and just visible above the exhaust manifold. See if it is moving freely and that it moves as the engine warms up.

I hope this helps.

Doug Stockman
Penfield, NY

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