Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 911 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
Join Date: Feb 2012
Location: Iowa
Posts: 173
Speed sensor and reverse light switch

So this past weekend I got some work done on my 78/81 FrankenPorsche... unfortunately it was all steps in the wrong direction (got everything put together and found a gas leak) so took the engine out and pulled the fuel lines. In the process I found that the speed sensor cable had been pinched, and one of the wires was damaged. is that something I can cut and then splice back together? would that damage the integrity? normally I'd just cut my losses and replace it, but my budget went out the window...

Also I had damaged the reverse switch's cable the last time I took it all apart, took probably two inches off of it when I spliced it back together (someone had fun with the tolerances at the factory) Before I rip that cable apart, is there any way to get a new one? does it come out of the wiring harness relatively easy?

Hopefully you all had a slightly more productive weekend than I.

George

Old 09-08-2015, 06:20 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
El Duderino
 
tirwin's Avatar
 
Join Date: Feb 2011
Location: The Forgotten Coast
Posts: 5,843
Garage
Contact Dennis (timmy2). He made me a new engine and CIS harness. My reverse light switch connector was in bad shape. He has a source for the terminals so surely he could make you up a little extension for that.

Not sure about the speedo sensor but he can probably help with that too.
__________________
There are those who call me... Tim
'83 911 SC 3.0 coupe (NA)

You can't buy happiness, but you can buy car parts which is kind of the same thing.
Old 09-08-2015, 07:10 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered User
 
Join Date: Feb 2012
Location: Iowa
Posts: 173
awesome! thank you, also nice picture
Old 09-08-2015, 07:29 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered User
 
Join Date: Feb 2012
Location: Iowa
Posts: 173
also, how do I find timmy2?
Old 09-08-2015, 07:31 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered User
 
Join Date: Feb 2012
Location: Iowa
Posts: 173
sorry, found him
Old 09-08-2015, 07:38 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Fleabit peanut monkey
 
Bob Kontak's Avatar
 
Join Date: Nov 2007
Location: North Canton, Ohio
Posts: 20,707
Garage
Quote:
Originally Posted by ritter4242 View Post
sorry, found him
Timmy2 for sure. I despise those little reverse switch plug-in terminals once they start to go south.

I believe the speed sensor just delivers an electric pulse that needs a good path. Are either of the wires shielded with a mesh type wrap?
__________________
1981 911SC Targa

Last edited by Bob Kontak; 09-08-2015 at 09:26 AM..
Old 09-08-2015, 08:55 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
 
Registered User
 
Join Date: Feb 2012
Location: Iowa
Posts: 173
Bob, I'm not entirely sure, I know that the Brown (I think) wire got cut, but it looked like there were two other wires in there as well (both white, could have been a nylon support cord). worst case scenario is I just snip the thing in half and find out that there is shielding. I wouldn't be out anything as the one is already cut.

George
Old 09-08-2015, 09:50 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Registered
 
scarceller's Avatar
 
Join Date: Oct 2006
Location: Southern MA
Posts: 3,972
Garage
If during the repair the wires are soldered and shrink tubing is used I see no reason why they can't be repaired. If exposed to water I also like to put RTV clear silicone inide the shrink tubing prior to shrinking it, then cleanup the excess RTV and you have a water tight wire repair.
__________________
Sal
1984 911 Carrera Cab M491 (Factory Wide Body)
1975 911S Targa (SOLD)
1964 356SC (SOLD)
1987 Ford Mustang LX 5.0 Convertible
Old 09-08-2015, 10:03 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)
Member 911 Anonymous
 
DRACO A5OG's Avatar
 
Join Date: Sep 2007
Location: Rancho Palos Verdes
Posts: 14,329
Garage
Send a message via Skype™ to DRACO A5OG
Quote:
Originally Posted by scarceller View Post
If during the repair the wires are soldered and shrink tubing is used I see no reason why they can't be repaired. If exposed to water I also like to put RTV clear silicone inide the shrink tubing prior to shrinking it, then cleanup the excess RTV and you have a water tight wire repair.
+1, just a magnetic pulse signal wire, no critical current passes thru it. Heck I attached my GPS to it on the gauge side. Yes I have two speedos now
__________________
'85 Carrera Targa
Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace
PCA/POC
Old 09-08-2015, 10:38 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #9 (permalink)
Registered User
 
Join Date: Feb 2012
Location: Iowa
Posts: 173
Quote:
Originally Posted by scarceller View Post
If during the repair the wires are soldered and shrink tubing is used I see no reason why they can't be repaired. If exposed to water I also like to put RTV clear silicone inide the shrink tubing prior to shrinking it, then cleanup the excess RTV and you have a water tight wire repair.
scarcellar: Thanks now I just need to patch my reverse light /: haha

Draco: that sounds amazing!
Old 09-08-2015, 10:47 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #10 (permalink)
Still here
 
pmax's Avatar
 
Join Date: May 2014
Location: SF Bay Area
Posts: 18,056
Garage
Quote:
Originally Posted by Bob Kontak View Post
Timmy2 for sure. I despise those little reverse switch plug-in terminals once they start to go south.

I believe the speed sensor just delivers an electric pulse that needs a good path. Are either of the wires shielded with a mesh type wrap?
Seriously !

Isn't this just a simple low voltage on off switch ?

What is the deal with the flimsy connectors and the "kilovolt" hard but brittle bakelite material for the plug ?


Old 04-22-2016, 07:07 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #11 (permalink)
Reply


 


All times are GMT -8. The time now is 12:57 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.