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Old 09-17-2018, 05:46 PM   #1
daren007
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Default Model A engine cam bearing dimension

Can someone give me the model A engine block cam bearing dimension.


Cavity bore diameter. Thanks. Daren
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Old 09-17-2018, 10:31 PM   #2
jetmek
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Default Re: Model A engine cam bearing dimension

going from memory here but 1.560 sounds right
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Old 09-17-2018, 11:01 PM   #3
Kurt in NJ
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Default Re: Model A engine cam bearing dimension

I have max clearance .003 from service bulletins

new cam diameter of 1.560 ---from bill stipe site

a low mileage block that I took apart that still has machining marks has .0015 clearance with original cam that shows no wear

a center cam bearing with .005 clearance has the same "open" cross section as the oil feed to the valve chamber ----
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