[Healeys] Dynalite or which alternator to C42 Generator

Oudesluys coudesluijs at chello.nl
Mon May 1 01:27:22 MDT 2017

The dynamo look-a-like alternators seem to have a bad reputation on 
reliability and probably do not deliver what they promise. You are 
fitting a non-standard item anyway so why not fit fit a tried and tested 
Lucas ACR../100 or AC Delco unit and be frank about it. You can do away 
with the regulator or use it as a junction box. Do not forget to upgrade 
your wiring, which would be a good thing to do anyway, the 50+ year old 
harness is most likely very tired, messed about with and prone to 
overheating/fire in various areas. At the least replace the wiring from 
the alternator to the battery with wiring that can handle twice the 
original current. It is also a good idea to increase the rating of the 
wiring of the headlamps, aux. lights, blower, and wipers. The average 
voltage will increase to about 14,5-15V thus there will be slightly more 
Kees Oudesluijs

Op 30-4-2017 om 19:54 schreef Simon Lachlan:
> My nephew’s generator issues may resolve themselves soon. May…….
> We may look at replacing the C42 in his BJ8 with an alternator, one of 
> the generator lookalikes.
> Dynalite is one of the names I’ve come across, as sold by Holden’s. 
> The Usual Suspects don’t seem to give their lookalikes their brand names.
> Anyhow, I know this topic came up a few months back, but I wasn’t 
> interested then! So:-
> Does anyone have experience of these things?
> Is any brand better than another??
> Etcetc.
> Holden’s claim 45amps for theirs. AHSpares claim 50amps. A BJ8’s C42 
> generator kicks out 30amps max. It seems that one does need the BIG 
> fuse in the Dummy Control Box. When I put in my alternator, a Lucas 
> ACR, I put in an extra cable to carry the extra amps…….apparently if 
> the alternator is really belting out the amps, the old wiring is a bit 
> marginal.
> Any other thoughts?
> Kind advice to the effect that putting more modern electrics in our 
> old bangers is streng verboten is unnecessary at this time.
> Thanks,
> Simon
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