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sticking speedometer

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rajvett

Freshman Member
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I have a 78 Spitfire with 58,000 actual miles on it. For reasons to envolved to get into I had it stored in my garage for the last 20 years. I recentaly brought it out and after new tires, brakes, clutch slave cylinder and other goodies I thought all was good to go. After 60 miles the speedometer is sticking. 0 to 40 is ok after that it seems to be slow and will not go past 50. When stopping it will drop back to 0. Any good ideas on how to repair it.
Thanks
rajvett
 
I took the Speedo housing apart on my TR4 and sprayed the internals clean with WD-40. It works great now. Taking yours apart may identify what is causing it to stick. Could be a bug that crawled in there or spider web.

Check out this website below to download a repair manual. This is what I used to work on my Speedo.

https://home.comcast.net/~rhodes/speedo.html

From the manual:
2) The spindle may not move freely due to the disk binding against an obstruction. In this
case the pointer is stuck in one place or will not rise above a certain level.
 
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