BSA Owners' Club Workshop Discussions

The BSA Workshop => Singles => Topic started by: PeteRae on 22 Nov, 2020, 11:24

Title: Up to shear and back a thread......
Post by: PeteRae on 22 Nov, 2020, 11:24
Morning all....
just rebuilding my B40 lump and can't find any info on torque settings for the 3 bolts and 4 nuts on the crankcase housing.....dont want to nip it up willynilly....any info greatly appreciated!   :D
Pete
Title: Re: Up to shear and back a thread......
Post by: Bess on 22 Nov, 2020, 11:55
Hi,
     I don't think any were published.

The A50/A65 give 16/18 lb/ft for 5/16" dia crankcase studs/bolts, I would use that figure in the absence of anything else.

Best wishes..
Title: Re: Up to shear and back a thread......
Post by: PeteRae on 22 Nov, 2020, 12:06
Cheers Bess....I'll start at 10 and work up slowly....
regards,
Pete