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#76740 06/11/2007 10:08 PM | Joined: Aug 2005 Posts: 12 New Guy | | New Guy Joined: Aug 2005 Posts: 12 | Forgive me if this has been covered before but I searched the archives and could not find exactly what I need.
I have a 47 speedometer out of a 3800. When I hooked up a new cable it squalled like crazy. I unhooked it and the cable by itself turned quietly. I took it apart and cleaned the gears and lightly oiled inside the housing where the cable goes in. I put it back in and it was quiet.
Now, the problem is that the needle looks like a compass in the Bermuda triangle and the odometer is off.
Does anyone have detiled instructions on how to correctly reassemble one of these? There is a spring that probably either has to be tight or relaxed, for instance. I don't mind tinkering but I need to know the tricks to get this thing right.
I appreciate any help,
Bill | | |
#76741 06/12/2007 8:02 AM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | Good luck with that, the rebuilder services have spoken for all the NOS parts and its pretty hard to do yourself.
Paint & Body Shop moderator
A lone amateur built the Ark. A large group of professionals built the Titanic. | | |
#76742 06/12/2007 1:20 PM | Joined: Feb 2006 Posts: 395 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 395 | I have cut the end off of an old cable and used it in a drill to turn the speedo then you can play and lube to see if you can get it to settle down if no find a rebuilder...doc | | |
#76743 06/12/2007 6:59 PM | Joined: Aug 2005 Posts: 12 New Guy | | New Guy Joined: Aug 2005 Posts: 12 | I have found some documentation on some old non Chevy speedometers that are very similar. It talks about changing out the gear that runs the odometer to different tooth numbers. It also talks about how not to damage that blasted spring that is around the shaft that holds the needle. I wish I had known that before I took it apart and it did a slinky on me.
I am going to follow these instructions and see what happens. I don't know the orientation of the spring when the whole thng goes back together but I might get lucky. It won't hurt to monkey with it a little before I give up and spend $150 to $200 to a shop and have to wait a couple of months to get it back.
Gater | | |
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