[Healeys] Jumpy Speedo

[Bob Spidell]

Not that kind of Speedo ;)

I had the speedometer in my BJ8 modified for a 3.5 rear end a few years 
ago.  It's performed flawlessly until recently, when it began to get 
"jumpy" (will indicate correctly for a second or two, then jump 10-15mph 
higher momentarily, then settle back down--more or less consistently).   
I've cleaned and re-lubed the cable to no effect, and with a road trip 
coming up don't have time to take it to a shop.

Can these be easily disassembled--I just need to remove the cover--and 
cleaned, say, with a no-residue electronics spray cleaner?   Are tiny 
bits going to fall all over my garage floor and disappear into the fifth 
dimension, never to be seen again?  If not, I'm thinking a light coat of 
silicone lube on the moving parts, or should I leave it dry?  Do the 
bearings or other internal parts wear out in 20-30K of driving?

Appreciate any and all replies.


bs

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Bob Spidell           San Jose, CA            bspidell at comcast.net
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