Bouncing speedo
Thread Starter
Melting Slicks
Joined: Mar 2005
Posts: 2,202
Likes: 15
From: Keswick Ontario
Bouncing speedo
A friend of mine has a 78 coupe. he has had a bouncing speedo needle problem. he has replaced the gear in the transmission as well as putting in a new cable.
i looked on Corvette Centrals website for some kind of speedo head unit but there was nothing.
Any ideas what parts or service i can suggest to him to solve his problem
i looked on Corvette Centrals website for some kind of speedo head unit but there was nothing.
Any ideas what parts or service i can suggest to him to solve his problem
CF JASOC Member
Joined: Feb 2006
Posts: 8,040
Likes: 34
From: Downtown Annapolis, MD. The Future is where we all have to live. Let's not screw it up.
St. Jude Donor '08-'09-'10-'11
That did the trick for mine.
I hung the cable and sprayed lithium grease into the housing around the cable until I saw it dripping out the other end, and then let it hang until the dripping stopped.
Wear safety glasses if you don't want to get back-spray in your eyes.
Ask me how I know.
I hung the cable and sprayed lithium grease into the housing around the cable until I saw it dripping out the other end, and then let it hang until the dripping stopped.
Wear safety glasses if you don't want to get back-spray in your eyes.
Ask me how I know.
Thread Starter
Melting Slicks
Joined: Mar 2005
Posts: 2,202
Likes: 15
From: Keswick Ontario
to quote my buddy.
we have lubricated and done all the normal things but the #%^*& thing still bounces.
we are thinking to change out the head unit but i can find one on CC or Paragon websites.
any other ideas
we have lubricated and done all the normal things but the #%^*& thing still bounces.
we are thinking to change out the head unit but i can find one on CC or Paragon websites.any other ideas
Instructor
Joined: Oct 2006
Posts: 219
Likes: 0
From: Jupiter FL
That's the first place I'd look. If you don't have cruise you may have to get into the speedometer head itself. Sometimes a drop of bearing or clock oil in the jewel in the frame and magnet assembly will take care of the problem, (since you've covered most of the other bases). If it were a 76 or earlier, I'd walk you through how to do it, but the 78 to 82s are a real nightmare once you start trying to dis-assemble them. If it's not the cruise transducer, have a speedometer shop take a look at it for you. Especially for those years.
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Joined: Sep 2002
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From: High Point, NC
That did the trick for mine.
I hung the cable and sprayed lithium grease into the housing around the cable until I saw it dripping out the other end, and then let it hang until the dripping stopped.
Wear safety glasses if you don't want to get back-spray in your eyes.
Ask me how I know.
I hung the cable and sprayed lithium grease into the housing around the cable until I saw it dripping out the other end, and then let it hang until the dripping stopped.
Wear safety glasses if you don't want to get back-spray in your eyes.
Ask me how I know.