21-05-2020, 08:56 PM
The dynamo should not be run without a battery, certainly not for long or at revs as the sytem voltage rises and may burn out the field coil as well as bulbs.
Odd though it seems and contrary to usual eletrical practice, connecting the F and D wire at the dynamo and both securely to earth stops the dyanmo generating. Provided not a DEL 4 pole dynamo with the internal resistor intact, disconnecting the F wire at the output form the dyn body will also disrupt.
On the later RP and later cars, assuming wiring is exactly original and not DEL dynamo, selecting Summer and removing the charging fuse will disable the dyanmo.
Odd though it seems and contrary to usual eletrical practice, connecting the F and D wire at the dynamo and both securely to earth stops the dyanmo generating. Provided not a DEL 4 pole dynamo with the internal resistor intact, disconnecting the F wire at the output form the dyn body will also disrupt.
On the later RP and later cars, assuming wiring is exactly original and not DEL dynamo, selecting Summer and removing the charging fuse will disable the dyanmo.