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| | | | Joined: Jan 2005 Posts: 35 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2005 Posts: 35 | I can't seem to get my speedo to work? I can get it to read when I turn the cable by hand. I can also see that it is turning from the transmission, when I am driving, but when you hook them together the speedometer won't register? Any suggestions.
thanks
tom
Tom
| | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | What year vehicle?
Will the odometer work? | | | | | Joined: Jan 2005 Posts: 35 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2005 Posts: 35 | It's a 1939 chevrolet half ton with a 235 engine. I don't think the odometer works either.
Tom
| | | | | Joined: Dec 2001 Posts: 1,248 'Bolter | | 'Bolter Joined: Dec 2001 Posts: 1,248 | The cable isn't broken inside the cable housing somewhere?
John | | | | | Joined: Jan 2005 Posts: 35 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2005 Posts: 35 | No, I can turn it by hand and it also spins when the truck is moving if you unhook from the speedo.?
Tom
| | | | | Joined: Jun 2012 Posts: 1,747 'Bolter | | 'Bolter Joined: Jun 2012 Posts: 1,747 | The inner cable might be too short. If it wont engage both ends it won't drive the speedometer. Both ends need to have a "square" shape to them and need to go into the drive gear and speedo head far enough to drive them. If you can run the speedo with a drill and the cable turning when disconnected it might be too short.
Steve H
| | | | | Joined: Jan 2005 Posts: 35 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2005 Posts: 35 | I hooked the drill up and ran it in forward and nothing happened. When I reversed the drill the speedo worked?
Is that correct or is something backwards?
thanks!
Tom
| | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | | | | | | Joined: Jan 2005 Posts: 35 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2005 Posts: 35 | Thanks! Is there anyway to test the speedometer drive?
Tom
| | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | Not sure I understand what you mean by speedometer drive.
If you hooked up the cable with a drill , ran it in reverse. The speedometer and odometer should turn. | | | | | Joined: Jan 2005 Posts: 35 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2005 Posts: 35 | What I call the drive is where it screws into the transmission.
Tom
| | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | Ok
Not sure , someone else might chime in for you
When I had my problems recently with my speedometer I had the speedo out for a few days but still drove to work.
I could see the inner cable turning as I was driving.
Hopefully someone will have a better answer for you | | | | | Joined: Jan 2005 Posts: 35 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2005 Posts: 35 |
Tom
| | | | | Joined: Dec 2006 Posts: 113 Shop Shark | | Shop Shark Joined: Dec 2006 Posts: 113 | I was having the same problem and found my needle was pressed against the glass when I installed it. it worked uninstalled by hand and drill but didn't work when I put it all together and drove. It was a replacement needle so I just shaved it down a little and now it works.....not really accurate but it works.... | | |
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