Inukshuk
Rising Sun Member
Hey Daniel did you ever get the code from the Outlaws trip figured out? was it indeed the speed sensor?
Yes. The mechanical pin that links the speed sensor electronics (the part that screws onto the to the part that stabs into the t-case) sheared when the sensor seized. I bought a used one from Bruce Minney (Thanks Bruce!) I just finished replacing the o-ring on that part that stabs into the t-case. Its a common leak source on 80's. I had not realized the "speed sensor" was not the whole assembly so I took the whole assembly from Bruce. His o-ring was typical old and crumbly. I'd already replaced mine a few years back so it was in decent shape and I put it on the part I have to get back to him. Its still pliable and only slightly flattened.
Now the interesting part is that I noticed his sensor was installed "rotated down" while mine was "rotated up". I noticed because when "rotated down" the sensor blocks the bolt that holds the retaining key. The sensor mechanicals spin in gear oil. The shaft that holds the plastic gear (which engages a worm drive in the t-case) has a screw-type groove machined into it assuring constant gear oil bath and there are no seals. The seal is at the sensor end. I wonder if I starved my sensor of oil by rotating it up years ago. Before I re-inserted the pin, I drizzled in gear oil
Today I also replaced the felt gasket for the "bug cup", installed new washable Toyota air filter (you can only wash one so many times), and a PCV valve, grommet, and hose.