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dv3468 Member
Joined: Dec 02, 2006 Posts: 115 Location: Bloomfield, New Jersey
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Posted: Mon Mar 12, 2007 8:28 am Post subject: Speedometer trouble |
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Gentlemen: I took my M-38 out yesterday to drive in a local St. Patrick's Day parade. It was great to see the expressions on the veteran's faces as we drove by. It made the whole restoration worth it!!!
As I was driving to the parade, I noticed a grinding sound. At first I thought it was the transmission and my heart dropped! Then my son, who was sitting in the passenger seat said, the grinding sound was coming from the speedometer. I noticed that the speedometer needle was bouncing back and forth erratically and when I slowed down to under 25 mph the sound stopped! I did replaced the old cable with a new commerical #3A cable when I originally did the restoration. I wonder if the inside cable is slipping where it mates with the back of the speedometer or could if be inside the speedo itself? Any suggestions? Regards to all, Dennis.l |
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kiowamtp Member
Joined: Mar 30, 2006 Posts: 19
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Posted: Wed Mar 14, 2007 12:08 pm Post subject: |
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I had the same problem. However it was on an early CJ5, but I assume it would be the same issue. Remove the line from the back of the speedo and put a few drops of oil. I used marvel mystery oil. Works just fine now. Someone else will chime in I 'm sure. |
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dv3468 Member
Joined: Dec 02, 2006 Posts: 115 Location: Bloomfield, New Jersey
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Posted: Wed Mar 14, 2007 2:45 pm Post subject: |
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Thanks for the info. I disconnected the speedometer cable from the transmission then connected an elecrtric drill to the inside cable. It made the same noise. Thank God it's not the tranny. I'll let you know how I make out. Thanks for the advice. Regards, Dennis. |
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maeserik Member
Joined: Jun 14, 2006 Posts: 226 Location: Wijnegem Belgium Europe
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Posted: Thu Mar 15, 2007 12:52 am Post subject: |
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i put gear oil in the cable before connecting it with the spoeedometer and already conected with the transfercase
gearoil stays longer in the cable than engineoil, after that no bouncing needle anymore, you can also put some oil at the back of the speedometer _________________ 1942 GPW 71336 my son's jeep restored now
1951 M38 MC11891
1953 VW beetle (genuine german Käfer )
1957 fantastic wife
http://www.surfacezero.com/g503/showgallery.php?cat=1865
and this webside |
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maeserik Member
Joined: Jun 14, 2006 Posts: 226 Location: Wijnegem Belgium Europe
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Posted: Thu Mar 15, 2007 12:53 am Post subject: |
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i put gear oil in the cable before connecting it with the spoeedometer and already conected with the transfercase
gearoil stays longer in the cable than engineoil, after that no bouncing needle anymore, you can also put some oil at the back of the speedometer _________________ 1942 GPW 71336 my son's jeep restored now
1951 M38 MC11891
1953 VW beetle (genuine german Käfer )
1957 fantastic wife
http://www.surfacezero.com/g503/showgallery.php?cat=1865
and this webside |
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dv3468 Member
Joined: Dec 02, 2006 Posts: 115 Location: Bloomfield, New Jersey
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Posted: Thu Mar 15, 2007 8:42 am Post subject: |
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Gentlemen: I did as you suggested and everything appears to be OK. No more bouncing speedometer needle! Thanks to all. Dennis |
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kiowamtp Member
Joined: Mar 30, 2006 Posts: 19
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Posted: Thu Mar 15, 2007 2:23 pm Post subject: |
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Glad it worked out for ya |
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