1 Potting GPI Sensor Thu Sep 26, 2024 8:00 pm
jjefferies
Life time member
Hi, I've been refurbishing the GPI (Gear Position Indicator) sensor, the little unit that fits on the back of transmission. Now in addition to all the other problems like testing that it still works I'm at the point of re-installing it but need to re-pott the wires on the back where they leave the unit. For anyone who doesn't know what potting is. It's where you encapsulate electronics in a compound to keep moisture from affecting the electronics. In the case of the GPI There are actually two issues:
1.) Replacing the outer rubber cover
2.) replacing the broken potting compound which is used to secure the electrical internals from moisture i.e. rain.
Now with regards to 1.) above I've found that any number of spray can caps, especially those from O'Reilly's Auto parts for products like brake cleaner fit very nicely and a bit of work with a razor to make an exit for the electrical cable is all that is needed.
But 2.) is still an issue. And I am wondering if anyone has found a readily available product to be used for potting the electrics. I recollect someone suggesting "Liquid Tape" and wondered how that worked. Any other suggestions??
(An aside; Living in the S.F. Bay area very near Silicon Valley, in the past I have had several very excellent stores/suppliers for small time electronics needs. One in Berkeley another in S.F. and several down in Silicon Valley). They appear to all be gone. So I may have to turn to on-line purchasing instead of just driving over. Apparently S.V. no longer has needs .Turn your back and...)
1.) Replacing the outer rubber cover
2.) replacing the broken potting compound which is used to secure the electrical internals from moisture i.e. rain.
Now with regards to 1.) above I've found that any number of spray can caps, especially those from O'Reilly's Auto parts for products like brake cleaner fit very nicely and a bit of work with a razor to make an exit for the electrical cable is all that is needed.
But 2.) is still an issue. And I am wondering if anyone has found a readily available product to be used for potting the electrics. I recollect someone suggesting "Liquid Tape" and wondered how that worked. Any other suggestions??
(An aside; Living in the S.F. Bay area very near Silicon Valley, in the past I have had several very excellent stores/suppliers for small time electronics needs. One in Berkeley another in S.F. and several down in Silicon Valley). They appear to all be gone. So I may have to turn to on-line purchasing instead of just driving over. Apparently S.V. no longer has needs .Turn your back and...)