For the first 5-10 mins OverDrive (OD) skips in and out without problem.
After a period of running in OD it hesitates when asked to drop out; i.e. when the switch is moved to ‘out’ ... it fails to drop out immediately.
On continued driving, if the switch is left in the ‘out’ position, it may then decide to drop out at random times, although somewhere between 30 and 90s is typical, longer than that is rare.
Once it drops out … it is happy to engage / disengage again until it left in overdrive again for while. At which point the cycle starts again.
The gearbox has been examined by Faversham Classics who cleaned the filters, changed the oil (using Millers XF Premium 75W90) , fitted new gaskets and advised that nothing untoward for the mileage’ was found on the magnetic pick up. The box has done 22k miles from new.
My next idea is to check the electrical circuit, given that this is the next easiest to do. I will monitor the current through the control circuit. This would enable me to monitor the effect of the gearlever switch, inhibitor switch and solenoid during various control request events. The intent being to help me identify whether the gremlin is electrical … or mechanical.
Am I looking at this sensibly ? Is there anything I’m missing ? What else might be worth checking ?
After a period of running in OD it hesitates when asked to drop out; i.e. when the switch is moved to ‘out’ ... it fails to drop out immediately.
On continued driving, if the switch is left in the ‘out’ position, it may then decide to drop out at random times, although somewhere between 30 and 90s is typical, longer than that is rare.
Once it drops out … it is happy to engage / disengage again until it left in overdrive again for while. At which point the cycle starts again.
The gearbox has been examined by Faversham Classics who cleaned the filters, changed the oil (using Millers XF Premium 75W90) , fitted new gaskets and advised that nothing untoward for the mileage’ was found on the magnetic pick up. The box has done 22k miles from new.
My next idea is to check the electrical circuit, given that this is the next easiest to do. I will monitor the current through the control circuit. This would enable me to monitor the effect of the gearlever switch, inhibitor switch and solenoid during various control request events. The intent being to help me identify whether the gremlin is electrical … or mechanical.
Am I looking at this sensibly ? Is there anything I’m missing ? What else might be worth checking ?
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