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Technical Discussion Forum For the discussion of technical questions about Professional Cars and their repair and maintenance. Posting in this forum is limited to PCS Members and / or Site Supporters. We encourage all website users to become members of the Professional Car Society and / or become Site Supporter.

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  #21  
Old 12-21-2018, 12:12 PM
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that being said why could i not get the s137 switch to turn on the back up lights? i will have to play with it some to make sure the contacts are good.
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  #22  
Old 12-21-2018, 09:44 PM
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you ever wounder what was in one of these. not much .the tag has the spring loaded contacts. the slug is the sliding vacuum port. when it's in the right position it shifts the vacuum were it is needed. then the plastic cover has the mail splices cast in and the the slides. we glued this one back together as all the tabs are broken off . the key part in rebuilding one is use some vacuum grease on the sliding slug and a little contact grease on the electrical side. the thug to watch for is loosing the springs or one of the contact shoes. there are tabs and holes so you can't get the cover on wrong. then a little glue on the mating surfaces and the clamp to compress the springs till it sets up. your never out anything trying to fix a broken part. .
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  #23  
Old 12-22-2018, 12:33 AM
Paul Steinberg Paul Steinberg is offline
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Ed... send it to me, and I will test it out to see how well and how long it will work.. I will even send you my non working one back to you.
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Old 12-22-2018, 11:11 AM
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But this is the one we had on yours. So unless the hog rings ere loose the back up lights did not come on. I'll send it out and see if thats what happened.
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Old 12-22-2018, 11:21 AM
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That thing looks like it has had a hard life! Why is that hole in the sliding lever broke out/damaged like that?
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  #26  
Old 12-22-2018, 09:10 PM
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Because it's had a hard life. I have seen them all most cut in two.
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Old 01-09-2019, 08:40 PM
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Picked up 2 more of these today. One was a part number 1994063 and the other was a part number 1994137. Oddly enough, both came out of '71 Cadillacs!
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  #28  
Old 01-10-2019, 10:25 AM
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Quote:
Originally Posted by Kurt Arends View Post
Picked up 2 more of these today. One was a part number 1994063 and the other was a part number 1994137. Oddly enough, both came out of '71 Cadillacs!
As Paul wrote on page one of this thread: "the parts catalog lists 69-73 as the same switch. Group 4.054 part number 1994063. Some where along the line, they changed the part number to 1994137, but still listed for those years.

Jim
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  #29  
Old 01-10-2019, 05:02 PM
Blake Sherwin Blake Sherwin is offline
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I'm going to have to get another one of these soon too
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