| Speedometer broken or loose connector pin fix [message #225541] |
Sun, 13 October 2013 21:17  |
mickey szilagyi
Messages: 273
Registered: January 2013
Karma: 0
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Senior Member |
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A few days ago there was a discussion on fixing or replacing the speedometer board. We had a problem with ours, two of the pins broke off and two were not it very good shape, ready to break off as well. We unhooked the speedometer cable and the electrical connector and removed the speedometer board from the back of the assembly. We took off the screws that held the speedometer to the dash and pulled the unit slightly out of the dash just enough to help get to the three screws holding the board to the back of the speedometer. That made it easier to get to and remove the screws.
After we took the board out we used 14 gauge solid copper wire to fashion inserts to go into each pin. We carefully filed ends to reduce the wire diameter until we could push the wire all the way into the pins, about a 1/2 inch. We did the same with two more short pieced of copper wire that we could then push into the two pins that were still attached to the board. We trimmed the wire at the back of the board to about 1/4 inch. We put a drop of liquid flux on each of the copper pieces of wire just where they entered the back of the board so the flux got sucked into the pins. We then heated each short piece of protruding copper at the back of the board with a soldering gun until solder would flow into and around the base of each pin. We snipped the protruding copper from the back of the board, not necessary but why not. Could even be ground down for a neater look but what for.
We put the board back on the back of the speedometer, applied some dielectric grease on each pin and carefully pushed the connector back on the pins. Much stronger than the original pins and worked for us.
Here's a few images to go along with what we did.
http://www.gmcmhphotos.com/photos/g6461-speedometer.html
Hope this helps some of you with the same pin problems.
Mickey
1977 Kingsley, 403, Lansing, MI
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| Re: Speedometer broken or loose connector pin fix [message #225545 is a reply to message #225541] |
Sun, 13 October 2013 21:44  |
gbarrow2
Messages: 765
Registered: February 2004
Location: Lake Almanor, Ca./ Red Bl...
Karma: 3
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Senior Member |
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Mickey,
Thanks for the write up and pictures!
That is exactly the info I was needed. all 4 of my pins are awol but still hiding in the connector. I haven't removed the speedo yet and had no idea that the circuit board was removable from the speedo.
Gene Barrow
Lake Almanor, Ca.
1976 Palm Beach
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| Re: [GMCnet] Speedometer broken or loose connector pin fix [message #225572 is a reply to message #225541] |
Mon, 14 October 2013 08:04 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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nice job
great pictures
gene
On Sun, Oct 13, 2013 at 7:17 PM, Mickey Szilagyi
<mickey@apex-internet.com>wrote:
>
>
> A few days ago there was a discussion on fixing or replacing the
> speedometer board. We had a problem with ours, two of the pins broke off
> and two were not it very good shape, ready to break off as well. We
> unhooked the speedometer cable and the electrical connector and removed the
> speedometer board from the back of the assembly. We took off the screws
> that held the speedometer to the dash and pulled the unit slightly out of
> the dash just enough to help get to the three screws holding the board to
> the back of the speedometer. That made it easier to get to and remove the
> screws.
>
> After we took the board out we used 14 gauge solid copper wire to fashion
> inserts to go into each pin. We carefully filed ends to reduce the wire
> diameter until we could push the wire all the way into the pins, about a
> 1/2 inch. We did the same with two more short pieced of copper wire that
> we could then push into the two pins that were still attached to the board.
> We trimmed the wire at the back of the board to about 1/4 inch. We put a
> drop of liquid flux on each of the copper pieces of wire just where they
> entered the back of the board so the flux got sucked into the pins. We
> then heated each short piece of protruding copper at the back of the board
> with a soldering gun until solder would flow into and around the base of
> each pin. We snipped the protruding copper from the back of the board, not
> necessary but why not. Could even be ground down for a neater look but
> what for.
>
> We put the board back on the back of the speedometer, applied some
> dielectric grease on each pin and carefully pushed the connector back on
> the pins. Much stronger than the original pins and worked for us.
>
> Here's a few images to go along with what we did.
>
> http://www.gmcmhphotos.com/photos/g6461-speedometer.html
>
> Hope this helps some of you with the same pin problems.
> --
> Mickey
> 1977 Kingsley, 403, Lansing, MI
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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