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September 29th, 2008

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Q & A: Ignition Warning Light

Thursday March 27th, 2003
Q & A, MGA, MGB, MGC, MG T-Type, Midget
Mr. Twist:

Any help would be appreciated. '56 MGA 1500; Ignition Warning Light came on, found dynamo armature wrappings burned, disintegrated. Replaced dynamo, but Warning Light burned brighter and pulsed; was told likely 'fried' voltage regulator when dynamo burned up. Replaced voltage regulator, same result, warning light still brighter and pulsating.

Any advise would be greatly appreciated.

Gary Hancock

Gary!

There are four components in the system: Dynamo (Generator); Control Box (Regulator); Battery; Wiring.

First of all, polarise the dynamo. Do this by jumping between the A and F terminals on the contro... read more