Hello Everyone,
Sorry for this one but it is driving (pun intended) me nuts...
When I bought the 69 mgb the seller said that the overdrive selector lever on the steering column should be pushed forward to engage the overdrive and pulled aft to disengage it. I left it aft, drove the car home and have been working on it (the car) since.
After alot of routine maintenance - some of which I've discussed here and gotten help with, thank you - I had the car out yesterday on the highway and I pushed the selector lever forward. The car engine rpm increased and the performance seemed "rougher". So, I pulled the lever back and the engine rpm dropped and the car performance seemed smoother. So that has me thinking that either the seller was confused at the time (wouldn't surprise me as far as the (*&^ I've had to deal with so far) or perhaps I misunderstood him.
By the way, I have reversed the car a few times backing out of the driveway, etc - not a good thing from what I've read about the overdrive.
First, can anyone tell me how their overdrive is engaged/disengaged. And, most importantly, is there a simple elect. test I can do? I was thinking that if I go from the overdrive solenoid wire feed to ground with a voltmeter, if I have 12volts with the ignition on then that would show me that the selector switch lever is disengaged. Moving the selector lever to the opposite position should then show no volts since there is no potential difference and that would indicate an engaged overdrive. Does that make sense (or are there other switches in the circuit via the shift or otherwise that would prevent this test from working)?
Thanks,
Jim Delaney
Sparta, NJ
Sorry for this one but it is driving (pun intended) me nuts...
When I bought the 69 mgb the seller said that the overdrive selector lever on the steering column should be pushed forward to engage the overdrive and pulled aft to disengage it. I left it aft, drove the car home and have been working on it (the car) since.
After alot of routine maintenance - some of which I've discussed here and gotten help with, thank you - I had the car out yesterday on the highway and I pushed the selector lever forward. The car engine rpm increased and the performance seemed "rougher". So, I pulled the lever back and the engine rpm dropped and the car performance seemed smoother. So that has me thinking that either the seller was confused at the time (wouldn't surprise me as far as the (*&^ I've had to deal with so far) or perhaps I misunderstood him.
By the way, I have reversed the car a few times backing out of the driveway, etc - not a good thing from what I've read about the overdrive.
First, can anyone tell me how their overdrive is engaged/disengaged. And, most importantly, is there a simple elect. test I can do? I was thinking that if I go from the overdrive solenoid wire feed to ground with a voltmeter, if I have 12volts with the ignition on then that would show me that the selector switch lever is disengaged. Moving the selector lever to the opposite position should then show no volts since there is no potential difference and that would indicate an engaged overdrive. Does that make sense (or are there other switches in the circuit via the shift or otherwise that would prevent this test from working)?
Thanks,
Jim Delaney
Sparta, NJ