[Healeys] BJ8 Speedo not working

[Bob Spidell]

It works fine on jackstands in gear with the engine running, but not on 
the road? That is odd, and I've dealt with quite a few speedo issues 
over the years.

The angle drive requires a small washer in the adapter on, I think, the 
OD side of the adapter (Moss# 324-720). I believe it's to reduce wear, 
but could be a factor (without out it, the angle drive could have 
issues, as Michael suggested). Inside the speedo, the cable drives a 
magnet carrier, which drives the speed needle and a worm gear, which 
drives the odometer and trip meter gears. Does the odometer work, but 
not the speed needle?

Bob

On 4/2/2021 6:12 AM, Michael Salter wrote:
> I encountered a similar problem years ago.
> Eventually traced it to the short piece of cable in the angle drive 
> slipping inside the gear.
> Not likely to be the case on 2 angle drives but may be worth checking.
>
> M
>
> On Fri, Apr 2, 2021 at 9:09 AM Donald Tate <bn2cars at gmail.com 
> <mailto:bn2cars at gmail.com>> wrote:
>
>     A friend’s BJ8 speedometer is giving us fits. New cable and angle
>     drive didn’t solve the problem. We can get it to work in the
>     garage while jacked up but once on the road, nothing! We’ve tried
>     different combinations of old/new angle drives and cables to get
>     it working in the garage but we must be overlooking something.
>     Any suggestions are appreciated!
>
>     Sent from my iPhone
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