Author Topic: Intake and exhaust manifold  (Read 994 times)

TimG102

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Intake and exhaust manifold
« on: December 10, 2020, 09:57:50 PM »
My intake and exhaust manifolds have the typical rust inside and out. I was talking to my local engine shop and they suggested hot dipping them. Has anybody tried this and how was the results. Should I have any concerns with the hot dip damaging the sealing rings? What are the seal rings made from?
1944 Autocar M15A1 ( M16A1) Halftrack
(Being restored to an M3A1 confg)

emptyhead

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Re: Intake and exhaust manifold
« Reply #1 on: December 13, 2020, 06:01:23 AM »
If you mean the sealing rings on the two wings for the exhaust manifold, I’m pretty sure they’re made of cast iron. I had to replace mine and picked up some cast piton rings.