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09-18-2003, 09:29 PM
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#1 |
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Inline 69
Join Date: Apr 2003
Location: valleysprings,california
Posts: 1,018
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speedometer bounces........
ive got a 69 6cyl,4-speed,,,,,,after about 25 mph,the needle on the speedometer bounces about 5mph,,,,,anyone know? ,bad speedometer? stretched cable?,,,,,,jeff
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09-18-2003, 09:49 PM
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#2 |
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Cantankerous Geezer
Join Date: Aug 2002
Location: Bel Aire, KS
Posts: 6,264
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Usually means the cable is either bad or needs lube.
__________________
Fred There is no such thing as too much cam...just not enough engine. 
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09-18-2003, 09:50 PM
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#3 |
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Senior Member
Join Date: Mar 2002
Location: Bartlett, TN
Posts: 348
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Lithium
Try removing the cable and spraying it with lithium.
...Dan |
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09-18-2003, 09:57 PM
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#4 |
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Registered User
Join Date: Dec 1999
Location: BRADENTON FLA
Posts: 3,269
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Detach it at both ends and spray some brake or carb cleaner thru it then some (spelling check) grafite dry lube.
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Rest in Peace Ed. Thanks for all the good times. |
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09-18-2003, 10:04 PM
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#5 |
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Registered User
Join Date: Jun 2003
Location: Little Rock, Ar
Posts: 124
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I just bought a new cable at Auto Zone for $8!
__________________
U.S.A.F. 68' C-10 Stepside 305 w/ 4 speed |
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09-18-2003, 11:29 PM
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#6 |
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Account Suspended
Join Date: Jan 2003
Location: Shadow of Lambeau Field
Posts: 5,597
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Napa charged me $19!!!
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09-18-2003, 11:58 PM
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#7 |
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Registered User
Join Date: Jan 2003
Location: Santa Fe, Texas
Posts: 250
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It could be the gear in the tranny also. My 72 did that it would bounce wildly till the the plastic gear finally grenaded and quit totally. Replaced the gear everything was great.
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09-19-2003, 12:05 AM
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#8 |
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Low & Slow
Join Date: Dec 2002
Location: Oklahoma
Posts: 1,047
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My cable was a little loose at the back of the speedo... Mine quit bouncing after I tightened it. I did lube it soon after though when I replaced the bezel and installed a tach in the tach hole.
__________________
70' C-10 LWB Fleetside 4.5/6 drop 
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09-19-2003, 01:02 AM
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#9 |
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Inline 69
Join Date: Apr 2003
Location: valleysprings,california
Posts: 1,018
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thanks guys,guess i'll start at 1 end and work to the other,,,,,
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09-19-2003, 01:25 AM
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#10 |
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72 LONGHORN OWNER
Join Date: Sep 2002
Location: Seattle Wash.
Posts: 963
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I could care less about your bouncy..speedometer..LOL...
 But could you just post more threads so I can see your avatar.........."Oh Baby"........... And I thought my avatar was nice,,,,,,,,,,,,,,,,,,,,
__________________
72-SUPER CHEYENNE/20 LONGHORN 70-C/30 DUALLY |
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09-19-2003, 10:47 PM
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#11 |
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Registered User
Join Date: Apr 2001
Location: apollo bch,fl. usa
Posts: 134
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Anyone! How do you remove the plastic gear in a th350 that drives the speedometer?
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09-19-2003, 10:58 PM
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#12 |
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Registered User
Join Date: Jan 2003
Location: Santa Fe, Texas
Posts: 250
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You have to remove the drive shaft, then remove the tail shaft. Then the gear is held on by a little clip I think. I have never removed one. Mine was in little pieces in the tail shaft. I remember putting in on was easy enough.
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09-20-2003, 12:06 PM
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#13 |
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1969 Custom 30 wrecker
Join Date: Sep 2001
Location: Pottsville, Pa
Posts: 2,611
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I recently changed one in a TH 350. There is a metal clip as mentioned but they seem to be pressed on a bit too. I pryed on it to remove and when it let go, it flew to the back of the garage! They are plastic but tough. (just becareful of the edges if you want to save it) GM dealers have new ones for under $4.00 but you can get them used at auto transmission shops for like a buck.
Oh yeh, when putting in a new one, use a pipe or similar and tap it on straight or it can snap in two. For the speedometer cable, just disconnect it from the back of the speedometer and pull the cable out of the cable housing. Then lube it and reinstall. (I like to submerge the cable into a quart of trans fluid, then dab off the excess)
__________________
Bob 63 Impala 283/PG/3.36 (under restoration) 66 Impala 327/PG/3.36 66 Chevelle SS 409/M22/3.55 69 Chevelle 307/PG/3.08 (future restoration) 69 C10 short stepside 454/TH350/3.73 69 Custom 30 tow truck 350/4 spd/4.10 (resto done, CRUISIN TIME!) 71 Cheyenne 20 fleetside 350/4 spd/4.10 71 Chevelle 6/PG/3.08 72 Chevelle 454/M21/4.10 |
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09-21-2003, 04:57 PM
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#14 |
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Registered User
Join Date: Apr 2001
Location: apollo bch,fl. usa
Posts: 134
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Mine is in a 4x4 so the gear is in the transfer case. Now how is this gear removed?
Anyone |
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