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B31 main bearing numbers #295755
01/25/10 9:17 pm
01/25/10 9:17 pm
Joined: Jul 2004
Posts: 346
Lake Conjola NSW Australia
pooch Offline OP
BritBike Forum member
pooch  Offline OP
BritBike Forum member
Joined: Jul 2004
Posts: 346
Lake Conjola NSW Australia
1956 B31

Have a new oil pump spindle and a new half time pinion so far.


Going to buy a new oil pump, so new main roller bearings should complete the package to hopefully stop my oil pump gears stripping out again.

Has anyone got both main roller bearing numbers handy and the best brand / best place to buy them?

Are there any other parts in the crank I will need?

If a new timing gear plate bush was fitted, how is it line reamed?


56 B31 with B33 barrel
51 Golden Flash with Dusting sidecar
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Re: B31 main bearing numbers [Re: pooch] #295778
01/25/10 11:58 pm
01/25/10 11:58 pm
Joined: Sep 2001
Posts: 2,795
Comox BC Canada
G
Gordo in Comox Offline
BritBike Forum member
Gordo in Comox  Offline
BritBike Forum member
G
Joined: Sep 2001
Posts: 2,795
Comox BC Canada
From left to right you need 65-2045 (Hoffman 125), 24-724 (Hoffman R.325L), 24-722 (Hoffman RMS.9L).

Below is the bearing service sheet. If you save it and then open and zoom you should be able to read it.



Without frequent roadside repairs there is no fun in riding!

Moderated by  Allan Gill, Jon W. Whitley 


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