Joined: Jul 2018 Posts: 102 Threads: 33
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10-09-2020, 08:26 PM
No third brush on this it's a big seven so it's got a VERY modern state of the art two brush set up haha!
In all seriousness though it's just a Lucas c45
The regulator is a new unit one of the 9 terminal Lucas jobs.
Joined: Jan 2019 Posts: 1,567 Threads: 20
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Location: Bala North Wales
Car type: 1933 RP Standard Saloon
Sorry. I thought it was the earlier setup. If it is a two brush system, then the voltage regulator will charge initially at about 15/20 amps for a short while after startup and then settle down to a trickle charge.you will have to wait for a few minutes for this to happen, though. The starter takes such a high current that received wisdom suggests that, to replace the lost charge in the battery, the dynamo will need to charge at 'full chat' for about 5 mins to replace it.
On my RP saloon, I usually keep it on the full charge setting for ten mins after a cold startup and five mins for any other startup during the day, switching to half charge thereafter.