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Joined: Sep 2002
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ChatMaster - 2,000
Joined: Sep 2002
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I have been reading up on the camshaft thrust spacer. I had a new NOS spacer which I installed on my 1940 216. I see that the only replacement commonly available now is the plate with a separate ring. I am having a difficult time imagining how the ring provides for the correct clearance. Could somebody please explain this to me.
My 1951 1 Ton is now on the road! My 38 Master 4 Door is also now on the road .
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The inner ring is about .003" thicker than the actual retainer. This allows the retiner to have aboutt .003" clearence when installed. Much easier than pressing on the gear and hoping you don't go too far.
Gene Schneider
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Joined: Sep 2002
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ChatMaster - 2,000
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ChatMaster - 2,000
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So I think I understand now. The gear center get pushed up against the ring and it acts as a precision spacer. Does this updated part work for the camshafts going back to 1937?
My 1951 1 Ton is now on the road! My 38 Master 4 Door is also now on the road .
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
This "invention" was new in 1953 and at that point the new and improved version can be used on any from 1937 and up and Chevrolet discontinued the one piece version.
Gene Schneider
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Joined: Jun 2007
Posts: 1,894
ChatMaster - 1,500
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ChatMaster - 1,500
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I have one of the new pieces mounted on a camshaft that is sitting in my office if you'd like a picture. It makes a lot of sense once you see it installed.
1938 Canadian Pontiac Business Coupe (aka a 1938 Chevy Coupe with Pontiac shaped front sheet metal - almost all Chevy!)
1975 4-speed L82 Vette
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Joined: Sep 2002
Posts: 2,323 Likes: 6
ChatMaster - 2,000
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OP
ChatMaster - 2,000
Joined: Sep 2002
Posts: 2,323 Likes: 6 |
Tim,
I think I understand it now. The gear center is pushed against the ring and the ring against the front of the first cam journal. The hole in the plate is larger and it has just the correct clearance. The old setup was a bit of an adventure.
My 1951 1 Ton is now on the road! My 38 Master 4 Door is also now on the road .
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Joined: May 2002
Posts: 6,149 Likes: 42
ChatMaster - 6,000
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ChatMaster - 6,000
Joined: May 2002
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The 1 piece retainers were a curse to fit, often would end up with not enough clearance.
Tony
1938 1/2 ton Hope to drive it before I retire
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