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Can I replace a CAV dynamo D5 LA8 with a DBNB-137?


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I have a faulty CAV D5 LA8 dynamo on my Humber LRC. It is running through a CAV Current Voltage Control Box type 141-1 designed for the D5 LA Normal speed dynamo. The replacement that I have available is a CAV DBNB-137 Low speed. Will it work with the control box? Will it damage the control box?

 

Les.

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Thanks Clive. That's a very useful table. It looks like the DBNB will produce around half the current, start generating at much lower rpm but is only safe up to 4000rpm. The Humber's 4086cc engine max power output is always given at 3400rpm but I am struggling the maximum rpm.

 

Regards,

 

Les.

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