I was on a trip this last weekend and my speedO went flaky. It was normal and then I noticed that when I let up on the gas the needle would stay at the speed I was going and work it's way down slowly, when I give it more gas, again it would work it's way up. Would it be the cable or the speedO itself? How hard to replace?

 

Thanks!

It's most likely the speedo. You can take it apart and clean and lubricate it.

I made a mistake! It's a 86 not an 87. I got the speedO out, but broke the circuit board on the bottom right below the heat control, bummer. I tested the speedO using an old VW cable and it works fine, so I pulled the cable and it isn't broke, but I did find a very small washer on the cable and it maybe got stuck in the housing? I greased the cable and housing, left the washer off and will put it back in after I find one of those circuit boards. Antone know what that washer is for?