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Series 3 Starter Dog Pully Bolt Socket Size

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MattR:
Hello. I’m stripping a 2 1/4 petrol 3 bearing and I need to get the pully bolt/starter dog off. I have a good impact wrench and need to get ahold of a socket. My vernier says 42.6mm, so I guess a 43mm socket would do the trick? Could anybody recommend an imperial or metic size that will make a neat job. At around £20 for this size I’d be grateful of a recommendation.

Thanks.

nathanglasgow:
It's usually a 1" whitworth. If you're in Glasgow you can borrow my 1"Whitworth slogging spanner. Cheers Nathan

MattR:
Thank you for reply. Still getting to grips with AF and Whitworth. Engine is out and head off so I think impact driver is my only way forward, socket needs to be deep to reach over the dog. I am in Glasgow on south side. Am I right in thinking it’s a reverse thread? Logic being you have to crank it clockwise to start.

nathanglasgow:
All the ones I've done have been the normal righty tighty lefty loosey thread.

MattR:
Yeah, just realised my mistake - it must be normal thread - if it was reverse you’d undo it with the crank handle!

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