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MG MGA - Generator Question 1961 MGA RDSTR

Ok Friends, Another helpful boost if you can:

RE: 1961 MGA Roadster has a 12Volt Battery (one on the <now> passenger side behind the seat. I assumed that the car had been quote "Converted" to a 12 Volt system.

A mechanic told me that my generator was bad so I purchased a new one from Moss Part # 8-129. Q. Would this most likely be a 6 volt Generator or hopefully a 12 Volt? If it is a 6 Volt can I get it rebuilt to be a 12 Volt? I realize this may be a stupid question but I appreciate your help while overlooking my ignorance.

If I have in fact purchased and installed a 6 Volt Generator what effect will this have?
Dan
DMC Dan Carty

The Generator (Dynamo) will be 12V. The original battery fitment was two 6V batteries in series to deliver 12V. It will say on teh website if it is a 6V generator, but this would be rather unusual (I have only ever heard of early VW Beetles / Bugs ever having 6V electrics)
dominic clancy

Dan - To insure that your new generator has a long life,see my article on fan belt tension <http://www.omgtr.ca/technical/tdtf_fan_belt/loosen_up.htm> and keep the belt loose on your car. Cheers - Dave
David DuBois

Whew, Thanks Guys
DMC Dan Carty

when you instal a new generater or one tha has been sitting for a long while it will probably have to be "excited" before it will work.
this induces a residual field which is necessary for it to stat generating current
don wallenius

Hi Dominic. Actually many American made automobiles in the thirties and forties used 6 volt electrical systems. I owned a 1949 Chrysler Windsor that had a 6 volt system THe engine was a huge in line 6 cylinder engine which had a very large 6 volt starter motor to crank the beast! Cheers! GLenn
Glenn

The moss calalog has instructions on how to Polarize a generator on a MGA. Look on the pages that have electrical parts on them. It is a simple procedure.
Ed Bell

This thread was discussed on 25/02/2006

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