C15 speedometer

Started by TIGERJ, 15 Feb, 2017, 06:06

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TIGERJ

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

AWJDThumper

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!

TIGERJ

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

AWJDThumper

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.

Dean Southall

I would recommend giving Rusell at Chronometrics a call. Decent guy. http://www.chronometrics.co.uk/
BSA: turning ordinary men into mechanics since 1910

TIGERJ

Dean thanks for the advice on speedo repair.
I have contacted the company and will advise on progress later.
Tim