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Re: G main bearings: what do I have?

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Author  [Modern View]

11-20-2013 16:57:07

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Thanks everybody. Today it sunk in that without the insert in that main, I could slide the crank forward a ways and try to get in there with a caliper. Took several readings that pretty much agree 2.89" so it looks like rear journal is .020" undersize.
When I get a chance and have the rear main supported, I'll see what inserts are in the front two main bearings.

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Alan K

11-20-2013 20:05:15

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 Re: G main bearings: what do I have? in reply to Len, 11-20-2013 16:57:07  
I would bet the crank has to be marked somewhere if it has been ground.

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11-21-2013 19:54:29

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 Re: G main bearings: what do I have? in reply to Alan K, 11-20-2013 20:05:15  
I rotated the crank and kept inspecting and can't spot any stamps. Where would you think stamp most likely?

Unmatched rear main bearing pair seem to point to the 30+ year old overhaul not done to normal standards.

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kevin moschenrose

11-22-2013 21:50:00

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 Re: G main bearings: what do I have? in reply to Len, 11-21-2013 19:54:29  
I would agree with that as well.

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Alan K

11-21-2013 20:17:09

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 Re: G main bearings: what do I have? in reply to Len, 11-21-2013 19:54:29  
It more than likely would be between a main and a rod journal on the casting. I looked my M5 over a couple times and didnt see it but then found it. I think mine was stamped R-010 M-010.

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