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Glenn Briglio 03-01-2022 01:46 PM
Re: Dumbo The Flying Elephant
 
Quote:
Originally Posted by Larry Hill (Post 658008)
Got my new CB663 XXX bearings today but my new micrometer won’t be here until Wednesday. Odds should be in my favor that I get some good bearings.
Larry try the King CR807XPN bearings. Very consistent thickness. Better than clevite's.

pmrphil 03-01-2022 06:57 PM
Re: Dumbo The Flying Elephant
 
Quote:
Originally Posted by Glenn Briglio (Post 658025)
Larry try the King CR807XPN bearings. Very consistent thickness. Better than clevite's.
And I'll add that I see less "delamination" with the King over the Clevite when they've been pounded.

Larry Hill 03-02-2022 09:41 AM
Re: Dumbo The Flying Elephant
 
I think I have King's in the pink car. What ever is in there its goin on its third season.

Larry Hill 03-03-2022 02:24 PM
Re: Dumbo The Flying Elephant
 
I received a new set of CB663xxx and they are good enough to install in a rod and check for clearance. Each shell got checked six places along the part lines for thickness variance and recorded in the Dumbo book

pmrphil 03-03-2022 07:24 PM
Re: Dumbo The Flying Elephant
 
What did you see for differences?

Larry Hill 03-04-2022 08:54 AM
Re: Dumbo The Flying Elephant
 
Out of the 96 places checked .0588” to .0595”, so thick to thin was .0007 and no shell had a variation of more than .0004.
Now they will be installed in the rods and checked for vertical clearance and taper. If all of that is ok Dumbo will have a fresh set of bearings.

Hats off to the real engine builders that have to fight this kind of stuff on a daily basis.

pmrphil 03-04-2022 09:47 AM
Re: Dumbo The Flying Elephant
 
Did you also order a set of King's? You may be surprised at the difference. I won't say that they are the cat's meow, but I like what I see when stuff comes in for freshen ups. The Clevite's are probably good enough for 85% (or more) of the engines out there, but I usually see better consistency with King, and sometimes ACL, depending on application.

Larry Hill 03-05-2022 11:51 AM
Re: Dumbo The Flying Elephant
 
I have two CB 663's and one set of ACL so I should be able to get something to work. If not I will get a set of Kings

Larry Hill 03-05-2022 12:02 PM
Re: Dumbo The Flying Elephant
 
Got the pink car running yesterday after it being rewired and with all new Classic Instruments gages. I think we solved the occasional no start problem, a bad fuse block. For some reason I had another one on the shelf.

Glenn Briglio 03-05-2022 11:17 PM
Re: Dumbo The Flying Elephant
 
Quote:
Originally Posted by pmrphil (Post 658184)
Did you also order a set of King's? You may be surprised at the difference. I won't say that they are the cat's meow, but I like what I see when stuff comes in for freshen ups. The Clevite's are probably good enough for 85% (or more) of the engines out there, but I usually see better consistency with King, and sometimes ACL, depending on application.
100 percent correct on King bearings


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