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Q & A: Sticky Oil Pump?

Wednesday January 04th, 2006
Q & A, MGA, MGB, MGC, MG T-Type, Midget
Sir,

Thanks for the informative article on overdrive.

I have a 1980 MBG LE (#508817) that is fitted with overdrive. The OD worked intermittently when I 1st got the car (April 05), but now not at all. I have confirmed that the gearbox has enough oil. I have tested the electrical by placing my volt meter in line on the gearshift switch. It registers 12V when the ignition is ON, the gearshift switch is switched to "IN", and I slide the shifter into the 4TH gear position. 0V when the shiftger is out if 4TH.

Would this indicate that 3/4 switch and solinoid are ok?

Eliminating oil level and eletrical, would you suspect a sticky oil pump?

Thanks again,

Thomas
Thomas!

If you've tested the voltage at the Lucas female connector between the operational wire and the solenoid wire -- and it's hot when the switch is ON, then I'll agree that you've got power.

If you have powe... read more