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Thread Like Summary
CooperMan, Luddite, RichardV6
Total Likes: 4
Original Post (Thread Starter)
#826549 07/03/2025 7:05 PM
by GrumpyPa
GrumpyPa
My Lucas C40 dynamo is faulty so I am looking to replace.
Before I replace/refurbish like for like has anybody fitted the Dynalite units? These are supposed to provide the benefits of a modern alternator, whilst retaining the original appearance of a dynamo albeit at a price.
Liked Replies
#826552 Jul 3rd a 08:07 PM
by britmog
britmog
Yes, I have installed the Dynalite. Easy install using a dummy regulator so all looks original, works so much better than the C40 and is significantly less weight too.
1 member likes this
#826562 Jul 4th a 06:08 AM
by RichardV6
RichardV6
If fitting the Dynalite just be aware it's extra output current doesn't exceed that of the ammeter. Some remove it altogether when fitting an alternator and wisely fit a battery voltmeter instead.
1 member likes this
#826705 Jul 6th a 09:48 AM
by GrumpyPa
GrumpyPa
Thanks Jon, I did try that without much success. Difficult to do properly in situ, also difficult to set up with a digital meter. I'll have a proper go when I have replaced it and aquired a decent analogue meter. There's an interesting article here REPAIRING_THE_STANDARD_RB106. In particular the addition of a diode to reduce the regulator contact arcing and burning is an interesting mod.
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#826736 Jul 7th a 01:19 AM
by Taffmog
Taffmog
When I rallied my '64 'S' back in the 70's we used to 'screw' the control box to give a higher charging rate, I was running Quadoptics and 2 Super Oscars ok but you had to be careful in daily use that you didn't boil the battery. Happy memories.....
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