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September 29th, 2008

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Q & A: Speedometer Fluctuating

Wednesday March 27th, 2002
Q & A, MGA, MGB, MGC, MG T-Type, Midget
John,
I hope the bad weather we are hearing about down here is not in your neck of the woods. If it is then I guess it is better you than us! Several years back Sapp had a speedometer in his "B" that was fluctuating at speed of 40 to 50 mph. He ask you what the problem was and you told him
the cable. He bought a cable and I installed it. That solved the problem. I now have a T.D. with the same problem except when the speedometer fluctuates it does so violently. This fluctuating starts at 18-20 mph. I
installed a new cable but it did not solve the problem. Is there a simple solution to the problem like a light oiling?
As usual thanks for you help and I guess I'll owe you a beer and a hot dog at the next gathering.

Larry Diaz

The MGB problem is easy compared to yours -- well, at least less expensive. In your case it is the speedometer unit itself which is faulty. Remove it and send it to BOB at Nisonger Instruments, 570 Mamaroneck Highway, Mamaronect, NY -- he... read more