Re: 2126 overdrive issues & education

Posted by HH56 On 2014/5/3 21:45:42

Am assuming the OD knob and cable is hooked up. If the lockout cable is needing lube, it could be part of the stiffness. It would be advisable to lube it anyway because if there is too much strain, the attachment point at the rear of the under dash piece where the cable housing is crimped to the pot metal assy can separate.

The R9 has the green light, solenoid has 4 terminals and relay is a squarish black box with 6 terminals. The R11 has no light, solenoid has 2 terminals and relay is a smaller rectangle with 4 terminals and a fuse on the side. Verify exactly what you have just in case the light has been wired in when it should not be.

On the R9, the OD knob when pushed in closes a switch and completes a ground circuit from the governor. The light is off until the car reaches OD speed of about 17-20mph. At that speed, governor supplies a ground, thru lockout and kickdown switch to relay. Relay will pull in powering solenoid and light. Light will then illuminate to signal the operator the car is ready to go into OD. He lets off the gas momentarily, the solenoid completes it's travel to lock the sun gear and when solenoid is fully engaged, a set of contacts open and the light goes off and stays that way until the car drops out of OD for whatever reason -- slowing below 17 or kickdown. When out of OD, the cycle will repeat when the car gets back to engagement speed.

Did you energize the solenoid to extend the plunger when installing? If not, make sure the solenoid has been inserted correctly into the pawl socket. If not it could be forcing the pawl in which would be equivalent to OD all the time. It could also be binding and does not have full travel to open the light contacts. Also check that the spacer is oriented properly. If memory serves, the small holes on one side is toward the rear of car. To energize the R9 solenoid, use heavy wires to connect the case for ground with one wire and for the other wire, BOTH terminals 3 and 4 at the same time. Make sure the plunger is out, pawl is retracted, then angle the solenoid case toward the rear of car and engage the end of plunger into the pawl socket.

Typically, the governor will have wires for both the OD and the ElectroClutch. If the clutch option is not present, that clutch wire on the governor will be unused and tucked aside. If you do have the R9 and the light is on all the time, verify the governor is hooked up correctly. The overdrive terminal and wire is exposed and more toward the middle of the governors bottom bakelite piece. There should be no continuity when measured to ground until the car is going approx 17-20mph. The clutch wire and terminal is positioned so it enters into a sort of raised bump on the bottom toward the side and terminal may be covered with tar. That lead will have continuity to ground with the car sitting and up until the 17-20 OD speed. If being used for OD, the relay would be energized and trying to bring in the solenoid and probably be the cause of the problems.

Verify that part is wired properly and if so, then the problem is farther along -- either a miswiring elsewhere or something damaged. If wiring is correct and light is on that means the solenoid is energized or at least trying to. That would be the reason for the stiff lockout lever. To have the solenoid energized & trying to go into OD with car sitting is serious on an R9 if selecting reverse. Whatever you do don't force it to go in reverse until you correct the problem.