BSA Owners' Club Forum

The BSA Workshop => Singles => Topic started by: TIGERJ on 15 February, 2017, 06:06:49

Title: C15 speedometer
Post by: TIGERJ on 15 February, 2017, 06:06:49
Hello people
                  Some of you may remember I am restoring a C 15.
                   Starting to put some bits back on the bike. But speedo is locked solid.
                   Any ideas just seen something similar for 300 !!!!!
                    Feeling a bit poorly.
Is none working a MOT failure ?
Regards as usual
                         Tim
Title: Re: C15 speedometer
Post by: Arthur on 15 February, 2017, 07:24:56
Tim. It might be possible to save the speedo but you would need to lever off and replace the old bezel to get at the internals. It's likely a bearing has seized and will need to be freed off and re-lubricated - I've had a similar problem before. In principle, it's an MOT failure but it's something they don't test for!
Title: Re: C15 speedometer
Post by: TIGERJ on 15 February, 2017, 09:12:03
Thanks for that Arthur.
You may remember Giving me some advice on the rear guard fixing.
I managed to get one side out to expose the thread inside it looks like 5/16 dia. But what thread type?
The other not enough metal left to extract it.
I will have to drill and retap.
Regards
            Tim
Title: Re: C15 speedometer
Post by: Arthur on 15 February, 2017, 12:16:35
Hi Tim.

You'll find most of the threads are BSC - the required bolts are 1/4 x 1/2 BSC. The tapped lugs are a bugger to drill out because of the limited space available between the sub-frame down tubes.
Title: Re: C15 speedometer
Post by: DEAN SOUTHALL on 15 February, 2017, 18:12:05
I would recommend giving Rusell at Chronometrics a call. Decent guy. http://www.chronometrics.co.uk/
Title: Re: C15 speedometer
Post by: TIGERJ on 26 February, 2017, 07:05:46
Dean thanks for the advice on speedo repair.
I have contacted the company and will advise on progress later.
Tim