The BSA A7-A10 Forum

Technical (Descriptive Topic Titles - Stay on Topic) => Lucas, Ignition, Charging, Electrical => Topic started by: Goldseeker on 01.03. 2011 20:35

Title: Magneto Pinion Rivets
Post by: Goldseeker on 01.03. 2011 20:35

I'm trying to find out the size of rivets for a 1958 Triumph 650 manual mag pinion, I am hoping the Triumph and BSA are similar. I have searched and found some information on the rivets for the Auto Advance type mag pinion but nothing on the manual type.

Can anyone please help with the size of the required rivets and where they may be obtained from?

Title: Re: Magneto Pinion Rivets
Post by: wilko on 01.03. 2011 21:40

Why would it have rivets? I thought all manual pinions were solid??

Title: Re: Magneto Pinion Rivets
Post by: Triton Thrasher on 01.03. 2011 22:11

If you have a fibre pinion rivetted to a centre, why not measure the depth of the holes?

Title: Re: Magneto Pinion Rivets
Post by: Goldseeker on 02.03. 2011 08:17

Quote from: wilko on 01.03. 2011 21:40

Why would it have rivets? I thought all manual pinions were solid??

No, two piece.

Quote from: Triton Thrasher on 01.03. 2011 22:11

If you have a fibre pinion rivetted to a centre, why not measure the depth of the holes?

Because I am trying to find this info for an old boy down the road who cant get about at the moment and doesn't have a computer. Whats left of the pinion is still in the engine.

Title: Re: Magneto Pinion Rivets
Post by: Triton Thrasher on 02.03. 2011 12:01

I'd probably check Tri-supply, TMS, etc., for a solid steel or aluminium pinion.

Title: Re: Magneto Pinion Rivets
Post by: A10Boy on 09.03. 2011 20:04

The rivets on the BSA  AR unit fiber wheel are 3/16 diameter and just under an inch long. I usually grind them down lengthwise to fit. You can always use a length of MS and pein both ends over.
HTH

Title: Re: Magneto Pinion Rivets
Post by: Stu55Flash on 09.03. 2011 22:10

I have a few countersink rivets for the Lucas automatic advance unit if these are any good for you PM me.

Stu