Speedometer flooded with water

[JLarimar]

Working on my 1966 StarCraft and notice the pilot hose was not hooked up to push water pressure to the speedometer. Easy fix right!? After I reattached and went for a ride on the lake I figured out why it was disconnected…
Anyone have a solution for this? Going to begin disassembly and attempt to diagnose the issue.

 

[Chris1956]

Likely the brass tube that flexes to move the needle has a leak. Probably need to be replaced.

Anyway, try to dump out as much water as possible, and put it near an incandescent light bulb to dry it out.

 

[harringtondav]

Your speedo is likely a basket case. It has a sealed tube that flexes with increasing water pressure. That tube is leaking. Even if you can seal the leak the delicate clock works is likely shot.
Finding a similar replacement will be a challenge. Faria-Bede has a repair service for their gages. Send them this pic. Maybe they can repair it.

 

[racerone]

Shipping and labor will exceed the cost of a replacement.-----Going with a GPS speedometer will eliminate water altogether.-----But if you are attached to this speedometer then it might be repairable with a dab of epoxy.

 

[JLarimar]

Thanks for the suggestions here. In an attempt to remove I could see there is no way for me to disassemble this unit. Best case I find a full replacement and swap it out. It is mounted in the dashboard super tight that’s for sure.

 

[harringtondav]

Thanks for the suggestions here. In an attempt to remove I could see there is no way for me to disassemble this unit. Best case I find a full replacement and swap it out. It is mounted in the dashboard super tight that’s for sure.

I don't own Faria-Bede stock, but I had a good experience with them replacing my defective pitot speedo with a GPS unit. They have a good on line catalogue with various sizes, trim styles and clock faces.
You may get lucky finding a size that will drop into your dash hole. If not, you'll have to enlarge the hole. Their speedos are self-rimming with a behind dash clamp ring. GPS +- $120. Same style pitot units +- $80. Get the p/n from them and Google for your best price.

 

[matt167]

That looks like a common vintage air guide speedo. Probably $50 used easy to find

 

[JLarimar]

That looks like a common vintage air guide speedo. Probably $50 used easy to find

Thanks for that. I'll keep my eyes out for one on ebay