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Topic: Speedometer ticking

in Forum: C3 Interior


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Speedometer ticking (1/13)
 8/17/09 4:48pm
ratrayLifetime Member
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Erda, UT - USA

Vette(s):
1973 coupe. LS4, M-21, DARK SADDLE LEATHER, POWER STEERING, POWER BRAKES, POWER WINDOWS, A/C, AM/FM STEREO, YELLOW ( 952 ).


Joined: 8/1/2005
Posts: 197

Took the little women for a cruise to Park City yesterday and the Speedometer started ticking. I have not yet looked in the repair manual, but, can I take the cable off of the transmission and lube the core like I do the tach? I doubt that it's ever been lubed and the car will be 37 years old in November. I really don't want to pull the dash out again this year. Done it twice already and my hands and arms and brain are all healed up now. It is still working so I think that it is OK. I also know that I'm out of forum, so forgive me. I wasn't sure which forum to put this in.
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Speedometer ticking (2/13)
 8/17/09 9:58pm
dwright
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Victor, NY - USA

Vette(s):
2004 Commemorative Edition Coupe, Auto w/HUD. 13K miles in 2015. Sold 1982 Red Coupe


Joined: 7/12/2004
Posts: 6833

You can disconnect at the tranny.
You should be able to remove the inner core, clean it, lube it and feed it back in the case.
Look at the connection at the tranny. If it is twisted, replace it.
Use a lift or jack stands for safety.


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Speedometer ticking (3/13)
 8/17/09 11:01pm
ratrayLifetime Member
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Erda, UT - USA

Vette(s):
1973 coupe. LS4, M-21, DARK SADDLE LEATHER, POWER STEERING, POWER BRAKES, POWER WINDOWS, A/C, AM/FM STEREO, YELLOW ( 952 ).


Joined: 8/1/2005
Posts: 197

I started this topic earlier in the wrong forum. I'm hoping you are right Dave (dwright) about being able to remove the inner cable from the cable housing at the transmission. I've been reading all the past posts about the cable and it seems that everyone is pulling the cable from under the dash. Joel and others addressed this in a thread on 02/13/05. If you listen closely you can hear my tears hit the ground just thinking about removing my dash again. I had this same problem with my first car, a 62 Belair. My Dad and I lubed the cable with graphite and it was fixed. It was  more than a couple years ago though and I don't remember if we got to the cable from under the dash or off the transmission. Loaned my jack stands and floor jack to my son a couple weeks ago so I guess I'll just have to worry about it tomorrow.............or the next day.
Speedometer ticking (4/13)
 8/17/09 11:28pm
Adams' AppleLifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


Joined: 11/8/2003
Posts: 20126

Cry Sorry...the inner cable will only come out from the dash side....and yes, I can hear those tears hittin the floor....
What you might try, is taking the upper dash pad off, instead of removing the gauge cluster. I think you can get to the cable to release it from the speedo, and then pull the inner cable out from there....I think...
Adams' Apple2009-08-17 20:29:06

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Speedometer ticking (5/13)
 8/18/09 6:38am
mikeee
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Oviedo, FL - USA

Vette(s):
1977 t-top


Joined: 9/8/2006
Posts: 267

FWIW, I replaced my complete cable but the upper dash pad was not yet in the car. It was a tight fit but you can " un clip" from back of gauge,and remove entire assembly through f/wall. Two person job that took 30 minutes.
Speedometer ticking (6/13)
 8/18/09 8:20am
KeBo
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Kendall Park, NJ - USA

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1981 - 59 Beige over Cinnebar leather. Edlebrock top end, 2200 stall w/shift kit, 3:55s, Mufflex maniback exhaust, nice stereo, 16 in AREs w/BFGs


Joined: 3/9/2005
Posts: 789

Im not sure what my guys did but it took them less than 5 mins to lube the cable...
Speedometer ticking (7/13)
 8/18/09 10:16am
maintenance4
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Tecumseh, MI - USA

Vette(s):
1980 all org. with 18000 act. miles dk claret with matching interior..Eagle alloys ..loaded..excellent cond.


Joined: 9/14/2003
Posts: 221

Had the same problem with my 80 awhile back. But it wasn't the speedo, it was the mileage tumblers binding up. pulled the lens from the speedo/tach and shot some WD-40. No problem since.
Speedometer ticking (8/13)
 10/2/09 2:07am
gofast
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Dunlap, IL - USA

Vette(s):
1st vette, my dream car. 1978 coupe with T-tops silver with spoilers front and back


Joined: 10/21/2006
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Hi All
Not sure if this is the right spot but I am also having an issue with my speedometer.
Was driving down to Funfest this last weekend and the speedometer started wobbling (best term I can think of) and then quit working.  I checked the connection at the trans and everything seemed fine so continued using the tach to guage speed.
Like everyone else don't relish the idea of taking the dash out, (not sure that's a job I want to tackle anyway).
Any suggestions or thoughts as to what happened and how to fix would be greatly appreciated.
thanks in advance
Speedometer ticking (9/13)
 10/2/09 7:54am
Adams' AppleLifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


Joined: 11/8/2003
Posts: 20126

Does it have Cruise control? If not, then either one of the speedo gears has failed, the end of the cable has broken, or the speedo head itself took a doo-doo.
If it has Cruise, then the first place to look would be the plastic end of the inner cable from the trans to the transducer, where it screws into the transducer. The end can twist off, and cause the problem.

With NO cruise, you can take the cable loose from the trans, and spin it with a drill to see of the speedo works. If the speedo works with drill power, then gears in the trans is the problem...


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Joel Adams
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Speedometer ticking (10/13)
 10/2/09 8:41am
crossfire1982
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Cramerton, NC - USA

Vette(s):
black 1982 coupe slate gray interior, 350 crossfire, 1985 fuel pump, Steeroids R&P conversion


Joined: 8/22/2006
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My speedo "bounces" but does not tick.  I have cruise and have disconnected the cable at the transducer and the end looks OK.  Can I disconnect at the tranny and pull the core for lube?  If so , do I pull from the tranny end or transducer end?  What lube is best to use?

Speedometer ticking (11/13)
 10/2/09 1:07pm
Adams' AppleLifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


Joined: 11/8/2003
Posts: 20126

You can pull the cable from the TOP, at the cruise transducer...no need to crawl underneath for that.
The (other)cable from the transducer to the speedo head has to come out from the speedo side...


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Joel Adams
C3VR Lifetime Member #56    

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(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

Speedometer ticking (12/13)
 10/2/09 1:41pm
crossfire1982
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Cramerton, NC - USA

Vette(s):
black 1982 coupe slate gray interior, 350 crossfire, 1985 fuel pump, Steeroids R&P conversion


Joined: 8/22/2006
Posts: 1094

Thanks Joel
Speedometer ticking (13/13)
 10/2/09 9:20pm
Babyblue 78
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Vette(s):
1978 Corvette Light Blue Pulled from the swamps of Miami! Its a driver and back on the road!


Joined: 12/3/2007
Posts: 280

Had simular problem on my 78. it was a combo of the transmission gear was missing or broken and also the speedometer gears needed fixed.  Corevette specialties I believe in Maryland  did the speedo work had it back in 2 days wroks fine and local garage put in the  plastic gear in transmission. Did get a cable and ran it from the tran to teh speedometer and bypassed the cruise cable fist to see where the problem was and still hooked up this way, works fine, but  sometime will get teh cruise control back  up and running. To remove the speedometer in the 1978 its not too bad. a couple of screws for the clear plastic and then teh surround and I believe one for the speedometer and you can pull it out enough to remove the  cable behind it and  its out. It clips back in and just take your time putting back the surround and  your done. Good luck  Corvette light blue 78.

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