speedometer

[cscarlson]

Yesterday i took the vette out and the speedometer quit working again. as some of you know i have changed the cables.tranducer and this should not happen. anyone got any suggestions.
can you buy a straight cable that goes from the speedo to the transmission?

 

[brusso]

Yup. Just ask for a cable that fits a car w/o cruise. That is what I eventually did with my 75.

 

[George Black]

My 80 L-82 corvette with cruise control used to "eat" speedo cables. Until I could determine why, I went to a cable that ran straight to the speedometer from the transmission as mentioned above. No problems after that. Later I went back to the original two cable cruise control/transducer setup and had no problems AFTER being told that I should lubricate both cables on a very regular basis. That solved the problem for me.

 

[cscarlson]

Thanks first for all the advice about the staight cable.. i lubed both cables and it didn't seem to make much of a difference. yesterday after Reserve Duty i disconnected both cables and tried to see if the cables would slide out, no luck .so i assume the cables are still okay. my questions now would be...

1. how do you know when the speedometer is going bad

2. is there suppose to be s plastic tip on the top cable going into the transducer ?

 

[George Black]

Sorry, I do not know the answer to your two questions--I am sure someone does. I do know that the speedometer is very easy to replace on a 80 model. I recall doing it. If removed, I am sure that a local speedometer shop could test the head for you so. (I would call a shop first before removing it).

I do not have a 80 speedometer head from my old car or I would send it to you.

I do have a very rare 80 L-82 6000 redline rpm tach that I am about to post for sale.

BTW: You and I have the same date of birth--figure the odds on that.

 

[cscarlson]

George Black...
Cool we have the same birth date. what would be weirder though is if we were both born in 1956..


Carl

 

[RRROBB]

I have a similar problem. I did replace cruise cable with a non cruise type and it worked for 17.4 miles. (i checked speedo)
I was told that there is a cotter pin of some type in the transmission that rarely gets put back if you are serviced.
this holds the cable to the tranny gear. I have not checked it yet
but plan to soon
P>S> I was born in '56

 

[brusso]

I have a similar problem. I did replace cruise cable with a non cruise type and it worked for 17.4 miles. (i checked speedo)
I was told that there is a cotter pin of some type in the transmission that rarely gets put back if you are serviced.
this holds the cable to the tranny gear. I have not checked it yet
but plan to soon
P>S> I was born in '56

Yours may have popped off the back of speedo itself?

 

[cscarlson]

Where do you buy the speedo cable that goes from the speedometer to the transmission ?

 

[john1977]

Are you sure the clip that holds the driven gear to the output shaft on the trans.didnt break or fall out. Had this happen on mine about 2 yrs ago.

 

[cscarlson]

clip

clip that holds the driven gear to the output shaft on the trans? Can i see the clip from underneath or do i have to take something apart?

 

[john1977]

You have to pull the tail shaft housing to get to it not hard,4bolts and a little fluid. Just wish I had checked it first,would have saved me alot of wasted time trying to figure out why every time i hooked up the cable it might work for a little while then quit. Keep saying it couldnt be that,it was! let me know if you need more help.