speedo cable - Team Camaro Tech
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post #1 of 3 (permalink) Old Jul 9th, 01, 03:09 AM Thread Starter
Senior Tech
Join Date: Apr 2001
Location: Southern NH
Posts: 1,056

I just put the transmission back in after
swapping the clutch and now the speedo does'nt work. I've installed the cable a couple of times and it starts working then fails. it worked fine before I pulled the
transmission out. Any Ideas also is there
anything that holds the speedo cable and gear
together? Everytime I pull it out I have to fish the gear out of the trans.
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post #2 of 3 (permalink) Old Jul 9th, 01, 05:46 PM
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Location: Washington, Michigan USA
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Make sure the outer end of the speedo gear has a good square hole in it, and the end of the speedo cable that mates with it also has a good square crimp that will enter the square hole in the gear properly. When you connect, make sure the end of the cable is fully seated in the gear, with the metal end of the sheath on the cable bottomed-out on the speedo gear adapter, before you tighten the threaded collar. If the cable isn't fully-engaged in the gear and you tighten the collar, the cable won't turn, and the plastic gear will be driven past its proper engagement with the drive gear on the output shaft and you'll have to go fishing for it.

'69 Z28 Fathom Green
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post #3 of 3 (permalink) Old Jul 9th, 01, 05:54 PM
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There are two seperate gears for the speedometer to work. One is the drive gear inside the tranny and the other of course is your plastic gear for the cable. I had the same problem recently with mine, and the cause was the drive gear inside the tranny had slipped down to far on the shaft causing it to not make contact with the speedo gear. You guessed it, I had to take tranny back out, take the tail housing off of it and pull the gear back up to where it should be, all this after converting from an auto to a 4 spd. This is just a possibility, you make also want to check the plastic gear first to make sure the teeth aren't worn off of it. Hope this helps
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