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Posted by: cvoros Mar 4 2009, 01:41 AM

Have a speedo cable problem - hopefully not a speedo problem. Occasionally my cable seems to become disengaged from the back - it starts making a loud buzzing noise, the needle winds up to 100+mph, etc. I can take the speedo out and the retaining cap at the end of the cable seems to be screwed on tightly to the back of the speedo, but I take it off and put it back on and it will do fine for several days, then suddenly starts up again.

Is the opposite end of the cable at the passenger rear of the tranny? If so, that seems to be screwed in place well also.

Does this sound like just a worn cable or am I looking at a bigger problem?

Posted by: SGB Mar 4 2009, 08:16 AM

More than likely it is the speedo drive gear at the tranny. They are pretty cheap, and very easy to replace. It is only held in by a single setscrew, and is isolated from the trans fluid by an O-ring, so it is just a bolt on opperation.

Posted by: cvoros Mar 4 2009, 08:23 AM

http://www.pelicanparts.com/cgi-bin/smart/more_info.cgi?pn=914-318-029-01-M82&catalog_description=Speedometer%20Angle%20Drive%2C%20%39%31%34%20%31%2E%37%2F%31%2C%38%2F%32%2E%30%20%28%31%39%37%30%2D%37%36%29%2C%20%39%31%34%2D%36%20%28%31%39%37%30%2D%37%32%29%2C%20Each%20

This dealie here? Cheap?? Well, its only $100! Glad install is easy.

Posted by: cvoros Mar 9 2009, 01:38 AM

So, nothing can be simple with me I swear. I took the set-screw out and as its coming out it feels wobbly. I didnt remove the speedo angle drive - but when I went to put the set-screw back in it wouldnt tighten. Those threads had been helicoiled and have come out. I am going to have to take my muffler/exhaust off, find what size helicoil I need now - just to get the set-screw back to hold in the old angle drive.

Just to be certain - I assume I should NOT drive the car without the set-screw holding the speedo angle drive?

Posted by: cvoros Mar 11 2009, 11:50 PM