View Full Version : What is This?
icoulabeenav8
08-16-2022, 12:03 PM
What is this?171186 Hm-m-m. Red circle disappeared. What is the plug like device in the side of the gearbox?
wallace18
08-16-2022, 12:21 PM
Back up or neutral safety switch. Use an ohm meter to find out.
VRaptor SpeedWorks, LLC
08-17-2022, 08:07 AM
That is your reverse switch to operate your back-up lights.....contacts open except when in reverse.
icoulabeenav8
08-17-2022, 09:22 PM
Is it polarized?
beeman
08-18-2022, 07:40 AM
No reason it would be polarized, just open vs closed switch.
VRaptor SpeedWorks, LLC
08-18-2022, 09:09 AM
Beeman is correct.....it's just mechanically operated open or closed contacts. No polarity. Run Ign+ power to one post and connect your reverse lights to the other post.
beeman
08-18-2022, 10:14 AM
Also if you are running a backup camera, you would run the activating wire to the reverse camera from this lead
icoulabeenav8
08-18-2022, 05:17 PM
Got it. Thanks.
icoulabeenav8
10-09-2022, 05:05 PM
I am currently wiring this switch up. I assume this uses some sort of crimp terminals to plug into the switch. Definitely missing on my car. I've tried the male crimp terminals (blue crimp sleeve insulation) typically available from auto parts stores but they aren't secure enough. Nor can I find a pigtail available from German car suppliers. Does anyone have a brand/part number or a solution that works?
Go to Porsche dealer, I think I bought the Pins from them and they also there is an angle boot that goes over it. that is what I have.
icoulabeenav8
10-09-2022, 10:56 PM
On my way, thanks.
Scott L
10-10-2022, 09:10 AM
I think you can source this from Forte as well...
crash
10-10-2022, 11:00 AM
Depending upon the pin material, you can also solder wires onto the pins, pot the soldered connections, and then put a quality connector that is more universal on the wires so that it is easy to deal with in the future. I use Deustch connectors that I get here...https://www.prowireusa.com/
icoulabeenav8
10-10-2022, 09:59 PM
Easy way to pot?
crash
10-11-2022, 10:38 AM
Easy way to pot?
https://www.prowireusa.com/p-554-resintech-rt125-epoxy.html
beeman
10-11-2022, 11:57 AM
Mike, what are your thoughts on hot glue for potting consumer level connectors?
https://www.3m.com/3M/en_US/p/d/b40065541/
https://www.hotmelt.com/blogs/blog/electrical-potting-encapsulation-hot-melt
https://youtu.be/lUR5Pqsu4mA
crash
10-11-2022, 01:18 PM
Interesting idea with the hot glue. I think I would be afraid that in a position like near the transaxle, in the engine compartment, it might get hot enough to melt the hot glue? I do not work with hot glue. I know a lot of people find it very convenient and useful, but I just have never been a fan or used it for anything. My wife uses it all the time for arts and crafts, but it just never came into my realm of thinking when doing race car stuff. 3M 8115 panel bonder? Yeah I use that stuff all the time for multiple things. Might be able to use that for potting liquid, but this "flexible" epoxy seems much better suited. I know it doesn't list as having a high heat rating, but I have never had any issues. The epoxy cures through chemical reaction while I believe the hot glue gun glue is just thermoset?
beeman
10-11-2022, 04:25 PM
Yeah the hot glue basically melts and rehardens without changing the chemical properties. I don't know if it's technically a thermoplastic like ABS (think 3D printer) but it's more flexible. There are different melting temperatures as well.
I have used my wife's glue gun to reinforce and insulate soldered circuits on a circuit board... Helps keep the wires supported and provides insulation as a bonus...
Shoeless
10-12-2022, 10:56 AM
FWIW...Every sensor on my GTM's motor and a few others on the car were soldered, potted with RT125, and received Deutsch AS connectors. You don't need to go to that extreme on the connectors, I do also have other Deutsch DT connectors throughout.