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Discussion Forum
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Re: Has anybody had a cam reground ?

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Author  [Modern View]

10-22-2012 18:01:21

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JMOR said: (quoted from post at 19:47:35 10/22/12)
TheOldHokie said: (quoted from post at 18:51:40 10/22/12)
Ken(Ark) said: (quoted from post at 17:08:52 10/22/12)
Hobo,NC said:

Dan (Rustbucket Dan) had a N shaft reground maybe you can find the info in the archives...

I did not find any numbers but I am in no hurry . I did find this great advise in the archives , it is on the internet so I know it's true .

Paul K in IL
07-07-2005 18:14:09

Re: Cam shaft , 07-07-2005 05:05:05
If you are thinking about getting it reground, DON'T. These engines have no camshaft bearings so any metal they remove will cause increased clearance with the engine block and lower oil pressure.

Truly profound advice :roll:
Unless you deposited more metal on the lobes before regrinding, and didn't have adjustable lifters, you have a real problem don't you?

I wouldn't call it a "real problem" but you do have to be aware of the issue. Heck even a new cam or new valves pose a problem if you are sticking with those archaic non-adjustable lifters. Since I was replacing everthying none of that was an issue for me.

I never measured the lobes on the regrind I purchased but my assumption was they had been reduced. And even if I had measured them I have no specification to compare against. I did measure the journals and they were stock. FWIW both the journals and the lobes had been nitrided. Not sure how much that may have added dimensionally or how long it remains on the surface once you fire it up. I think it is sacraficial and dissipates rapidly.


PS> For a production shop churning out lots of regrinds for many different engines I would imagine build-up with a metal spray would be child's play.
This post was edited by TheOldHokie at 18:08:34 10/22/12 3 times.

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