Jumping tach and photo of my car!

[RJ Gilliam]

Hello All,

Where is the pick up for the Tach on a 930/911?
I heard it is in the dist. ? Are there visable contacts I can clean or is this electronic? My Tach is jumping whenever it gets in the mood. So I was thinking it would be the pick up. OR If someone else has and idea please feel free...




Richard
86 930

[jkcrewsn]

Nice 930! My tach was jumping around a lot too. I was told I would have to send to a gauge shop to get rebuilt. I ended up installing a tach adapter when I put an MSD ignition system in. That cleared it right up and it works perfect now. I am not all knowing by any means, but the wiring harness on the CD box has a tach wire, and the magnetic pickup comes off the distributor going to the same clip. I can't tell you why mine wasn't working before, or if yours is even the same as mine (years older). But mine was not a gauge problem. So be sure you check the connections before you spend the money getting it rebuilt, as that may not even help. Wish I could be a more specific help.

[Rufblackbird]

I don't have a 930, but when my tach started jumping around, I was told by this board to check my points and clean it. If your 930 still uses points that would be the first thing to try and clean. Good luck.

[Bill Douglas]

Nice wheels Richard. Are they polished or chromed? Bill '79SC

[old_skul]

If those are polished, I need to work on my wheels...

I think they're chromed. You'd need to work for days on your wheels to get 'em that shiny.