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6/11/13 5:44pm - Original Message: 'speedometer acting up'
RedVetteinprogress
Former Member
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West Bend, WI - USA

Vette(s):
1985 silver coupe & 1975 red coupe

Joined: 3/18/2010
Posts: 46

I have a 1981 Vette and the speedometer needle is jumping all over the place. Can someone tell me the best thing to use for lube on the cable and how to do it. Corvette's forever! Thanks for the help. Darrell

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6/11/13 9:11pm - Reply: 'Re: speedometer acting up'
eldredjames Lifetime Member
Lifetime Member
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Temple City, CA - USA

Vette(s):
1969 Daytona Yellow. 350 / Automatic.

Joined: 10/3/2010
Posts: 361
try here for some suggestions
 http://www.corvetteactioncenter.com/forums/c3-technical-performance/58366-speedometer-cable-lube.html

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6/11/13 10:16pm - Reply: 'Re: speedometer acting up'
daveo76
Standard Member
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 831
Unfortunately you can't disconnect from the "easy" transmission side - you have to reach up and disconnect from the speedo side.  The clip is fairly self explanatory if you can see it, but I don't remember exactly how it disconnects.  I think it's just a squeeze and pull operation.  Once disconnected, you can pull the cable out of it's jacket.  I think just about any grease would work, I probably used just regular chassis grease or maybe white lithium.  BUT....I think I'd recommend replacing it instead of going to this trouble just to grease.  They are not expensive, especially if you just replace the cable and not the jacket.  But I would recommend buying a quality, correct length from one of the vendors.  My first try was a non-specific part from the Help section of a parts house - not a good idea.     

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1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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6/11/13 11:02pm - Reply: 'Re: speedometer acting up'
rraider1
Former Member
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Woodland, WA - USA

Vette(s):
1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Joined: 10/14/2003
Posts: 1152


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Bob R
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6/12/13 11:54am - Reply: 'Re: speedometer acting up'
jdgrant Gold Member
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HOT SPRINGS NATIONAL PARK, AR - USA

Vette(s):
1978 (25th Annv. Edition)Red, Black interior, 4-Speed Transmission, L-82, Power & Air, Very Rare Option Package(Only 145 Red 1978s with a 4 speed trans) & Very Original Car, with original Window Sticker, Bill of Sale and all documentaion.

Joined: 11/12/2003
Posts: 190
I just went through this with my 78. I purchased the grease adapter from Mid-America Motorworks to grease it from the transmission side. They recommend white lithium grease and that is what I used. I had to treat it twice as I did not want to over grease it and ruin the speedo. The results are great. My cable was screaming and the needle was bouncing. All issue are now fixed and I am very pleased.

This seems to be the simplest fix without tearing out the dash and risk getting grease in the interior of your Vette. Also there is a "C" clip on the tranny side that would prevent pulling it out through the dash without removing it first.

Hope this helps!

1962-1974 Corvette Speedometer & Tachometer Cable Lubricator
609-4671962-74Corvette Speedometer & Tachometer Cable Lubricator
Tech Instructions
$19.99In Stock



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John D. Grant "Corvette; Cure for the common mid-life crisis!"
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6/14/13 1:53pm - Reply: 'Re: speedometer acting up'
dskopp
Former Member
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Oak Creek, WI - USA

Vette(s):
1981 Great White Shark. Red Interior, 350/190hp. PS, PB (SS), A/C CC, T-Tops, Going to remain as Stock as possible. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vetts Car Club. 175,000 Original miles!!

Joined: 5/21/2008
Posts: 1956
RedVetteinprogress said:

I have a 1981 Vette and the speedometer needle is jumping all over the place. Can someone tell me the best thing to use for lube on the cable and how to do it. Corvette's forever! Thanks for the help. Darrell




Did you get your anser yet??  Let me know, I just may have to take a drive to your house to see your 81!!  I live in Oak Creek, by the MKE Airport!!
DanHandshake


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