MGA MGA Generator Question.

[PAUL161]

Does the original MGA generator have open holes over the brushes with the band cover or were they solid? PJ

 

[ecurie_ecosse]

I think that they had holes and a band cover.

Stuart.

 

[DrEntropy]

ISTR the band.

 

[Steve_S]

The band around the MGA generator is to hold the coil. It doesn't use a band to seal the innards like earlier ones do. It is a C40 coil, like early MGB.

 

[PAUL161]

I think this generator on my TF is from an MGA. Did the tach drive on the MGAs come off the back of the generator, or were they electronic? There is a number on it showing 9-56, date maybe? PJ

 

[David_DuBois]

Paul - The tach drive on a MGA comes off the camshaft not the generator. The Same generator used on the TD/TF was used on many different cars and you '56' could be a case from on of them, with the rear end plate coming from a T series car. Our 53 TD had a generator case like the one you have pictured and a later date on it.
Cheers,

 

[Marvin Gruber]

Paul
The 54 TF I just got has the same generator. It's stamped with a 58 on it. I have an old TD generator that is stamped 52. Yours must have been replaced sometime later like mine.

Marv

 

[PAUL161]

Thanks guys! It's very evident that I know nothing about MGAs. I rebuilt this one, turning armature, new bearing, bushing and brushes. I don't know the output yet as I need to polarize it and that comes later after I get it wired properly. I thought of putting a band on it to make it look more authentic. PJ

 

[David_DuBois]

Paul - The later generators have a slightly higher output (19 amps vs 17 amp) than the earlier ones. Also see the article, Keep Your Belts Loose in the Other Tech Articles section of my web site at: https://homepages.donobi.net/sufuelpumps/ Cheers - Dave

 

[Steve_S]

Austin Healey Bugeye generators had the tach drive on the rear as well.

 

[David_DuBois]

Austin Healey Bugeye generators had the tach drive on the rear as well.

But it also has spade lug connections for those who are worried about originality.
Cheers,

 

[PAUL161]

Paul - The later generators have a slightly higher output (19 amps vs 17 amp) than the earlier ones. Also see the article, Keep Your Belts Loose in the Other Tech Articles section of my web site at: https://homepages.donobi.net/sufuelpumps/ Cheers - Dave

Very nice article on the belts Dave. Thanks! I'm going back to your site and write the numbers down for a new more flexible belt. PJ