 reverse light switch, high resistance and leaks, why? |
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| davesprinkle |
 Feb 5 2009, 01:52 PM
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Senior Member  Group: Members Posts: 720 Joined: 13-October 04 From: Berkeley, CA Member No.: 2,943 Region Association: None 
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OK, I'm now on my third reverse switch, with a consistent problem:
After a few hundred miles, the switch contacts become high-resistance (50 Ohms or so) and the switch leaks tranny fluid, filling up the wiring boot. By the way, the last two switches were brand-new Porsche replacements. I'm running Swepco 201, by the way. Anybody have any suggestions about what might be going on? |
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| charliew |
Apr 19 2009, 01:07 PM
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Advanced Member Group: Members Posts: 2,363 Joined: 31-July 07 From: Crawford, TX. Member No.: 7,958 |
Ok when things go to hell after you've been messing with it you should think about what you've disturbed in the process. Do you think maybe it isn't going as far into reverse as it was before as in the shifting mechanism or linkage not moveing far enough to transfer the switch? I would guess the switch plunger is bearing on the end of the shaft that the reverse gear yoke is mounted on. When you put it in reverse the shaft and yoke is not going as far as it's supposed to or as far as it used to go.
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| astronomerdave |
Apr 19 2009, 01:12 PM
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Member Group: Members Posts: 69 Joined: 26-January 09 From: Los Angeles, CA Member No.: 9,979 Region Association: Southern California |
QUOTE(charliew @ Apr 19 2009, 12:07 PM)  Ok when things go to hell after you've been messing with it you should think about what you've disturbed in the process. Exactly. Since I don't have measurements of the pin movement before the switch failed, I can't say for sure. But the only component that was messed with here was the switch. That's what led me to look at it more closely, and discover that the new-used switch I got is different from the original. |
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Posts in this topic
davesprinkle reverse light switch Feb 5 2009, 01:52 PM
GeorgeRud I've never had one go bad on me, so it seems o... Feb 5 2009, 02:13 PM
davesprinkle
I've never had one go bad on me, so it seems ... Feb 6 2009, 12:07 PM ejm Maybe the actuating pin is little too long causing... Feb 6 2009, 05:34 AM Joe Ricard That's what I would guess.
As well as the meta... Feb 6 2009, 06:38 AM Drums66
That's what I would guess.
As well as the met... Feb 6 2009, 03:08 PM Dr Evil Did you ever remove the actuating pin? It may be i... Feb 6 2009, 08:53 AM davesprinkle
Did you ever remove the actuating pin? It may be ... Feb 6 2009, 12:10 PM Dr Evil
Did you ever remove the actuating pin? It may be... Feb 6 2009, 01:31 PM davesprinkle
[quote name='davesprinkle' post='1130912' date='F... Feb 6 2009, 01:35 PM kconway Vent is oposite side of the case top just before t... Feb 6 2009, 12:47 PM Demick I've had the reverse switch leak through the s... Feb 6 2009, 03:49 PM davesprinkle
I've had the reverse switch leak through the ... Feb 6 2009, 06:26 PM ejm
If you remove it make note of where the vent hol... Feb 6 2009, 05:32 PM astronomerdave
Pulled the switch and pin out of a box at the sho... Apr 9 2009, 03:07 AM astronomerdave :bump:
Does anyone know the position of the pin ... Apr 15 2009, 03:43 PM Maltese Falcon I've had 2 new ones go bad, all leaking at the... Feb 7 2009, 04:28 PM davesprinkle
I've had 2 new ones go bad, all leaking at th... Feb 7 2009, 07:40 PM ssstikircr I could just be a bad batch when those were made. ... Feb 7 2009, 05:43 PM kwales Seals,
We don;t need no stinking seals..
Probabl... Feb 7 2009, 05:48 PM Dr Evil Dave, I'll sell you a used one for cheap ;) PM... Feb 7 2009, 08:04 PM charliew I wonder if the same switch is on the type 1 vw tr... Apr 9 2009, 09:19 AM jk76.914 This is VERY timely.
Mine did the same thing. Sa... Apr 19 2009, 09:35 AM davesprinkle
This is VERY timely.
Mine did the same thing. S... Apr 19 2009, 10:23 AM astronomerdave
You should be careful when purchasing a new switc... Apr 19 2009, 01:05 PM perrin1097
OK, I'm now on my third reverse switch, with ... Apr 19 2009, 10:29 AM charliew I'm talking about the amount of shift movement... Apr 19 2009, 01:22 PM Cap'n Krusty
I'm talking about the amount of shift movemen... May 3 2009, 07:38 PM jk76.914 Well I installed my new switch from Pelican last w... May 3 2009, 05:16 PM astronomerdave
I was wondering why my original switch failed, so... May 4 2009, 08:35 AM Dr Evil Thats just plain cool! Well done :) May 3 2009, 06:20 PM davesprinkle Good work on this investigation, jk.
I'm surp... May 3 2009, 06:46 PM jk76.914 The rubber diaphram is in the 33 year old switch. ... May 3 2009, 07:01 PM charliew Why not just put the tranny in reverse with the sw... May 3 2009, 07:25 PM jk76.914
Why not just put the tranny in reverse with the s... May 3 2009, 08:33 PM charliew You are correct in what you post about the more re... May 4 2009, 09:22 AM |
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