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04-18-2005, 12:02 PM
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#1 |
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User #12137
 
Join Date: Apr 2004
Location: kingsport,upper east tenn
Posts: 11,598
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speedo bounces ?
why does the speedo needle in my truck bounce ? it needle bounces all the time . is the speedo itself wore out or is it the other end where it hooks to the trans ? or is it the cable ? or is it sumthing else ?
Last edited by tnblazerk5; 04-18-2005 at 12:02 PM. |
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04-18-2005, 12:20 PM
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#2 |
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Registered User
Join Date: Feb 2005
Location: Owosso, Mi
Posts: 242
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I would guess the cable. I have had "jumpers" like you are talking about and it was the cable that fixed it. I do not know what a worn out speedo would look like but maybe someone else can shed some light on that one.
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67 short wide 355ci 3 on tree 69 short wide 250ci 3 on tree 68 long wide 283 3 on tree 72 2wd Blazer project 454 5 speed 
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04-18-2005, 12:25 PM
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#3 |
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Registered User
Join Date: Jul 2001
Location: North Louisiana
Posts: 4,501
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Probably just the cable needing lube. Take it loose at the speedo end, pull out the inner cable, oil it up with either oil or white lube, and put it back together. Should fix your problem Robb!
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Wynne 70 CST short fleet Hugger orange & white, 350/350, ps, pb, air, tilt, tach/vac/speedwarning, original buckets, AM/FM, oak bed floor, shoulder belts, 3.5"/5.5" drop, 20" American Racing VN425s. Build thread 53 Chevy shortbed 69 Camaro Click here to subscribe Chevy GMC International Truck Club Louisiana Charter Member http://www.louisianaclassictruckclub.com |
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04-18-2005, 12:26 PM
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#4 |
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User #12137
Join Date: Apr 2004
Location: kingsport,upper east tenn
Posts: 11,598
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ok on the cable and the worn out part i was takin about would be the back of the speedo where the cable goes in might be wobled out or does that happin ?
i just got the cable and it was used so yea it might be the cable lol you think if i added grafite<sp? to the cable it would help it any ? |
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04-18-2005, 12:26 PM
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#5 | |
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User #12137
Join Date: Apr 2004
Location: kingsport,upper east tenn
Posts: 11,598
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Quote:
ok i can do that !!!!! thanks !!!!!!! |
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04-18-2005, 01:40 PM
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#6 |
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More Cowbell....
Join Date: Mar 2004
Location: Puckett, MS
Posts: 3,569
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Hey TN, is your truck a manual (I think manual cables are shorter than autos...)? If so, I can send you a cable to use (or gauge if that is the issue). I just pulled mine out with the engine swap, and it did not bounce at all. I can send it with George to Pigeon Forge if you want it.
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There once was a member from Puckett.....Who ( fill in the blank blank blank ) bucket Last edited by Putter; 04-18-2005 at 01:41 PM. |
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04-18-2005, 01:58 PM
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#7 | |
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User #12137
Join Date: Apr 2004
Location: kingsport,upper east tenn
Posts: 11,598
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Quote:
its a 327/350 combo and i will have to lube up the cable thats there and see what happins then i can let ya know if i need any of that . thanks!!!!! |
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04-18-2005, 02:06 PM
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#8 |
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Registered User
Join Date: Aug 2002
Location: Waco, Tx
Posts: 15
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something else you may check if lubing the speedo cable is unsuccessful is the plastic gear on the transmission output shaft. if it has missing teeth it can definitely do as you are describing. the gear on my output shaft is currently m.i.a. this seems to be a fairly common problem once that gear begins to age. if the gear looks ok try taking the cluster out of the dash & running the speedo head with a drill. you can get a nice consistent rpm with a drill and watch for the bounce.
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1971 C/10..650,000 miles & counting |
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04-18-2005, 03:31 PM
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#9 |
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Questionable
Join Date: Mar 2005
Location: Atlanta
Posts: 13,376
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I am actually having the same general problem. I see bounces when driving, but not with a drill hooked up to it. I have a '69 3spd in my '68 truck. I had to get a longer cable b/c the speedo gear is farther back on the truck. I lubed the hell out of my cable, still had the problem. Very strange. I'm just living with it for now, I am hoping to have a new tranny this week
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If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM. |
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