Hi all ,
Being restoring antique and classic motorcycles ( mostly British ) for the last 40 odd years and am now trying to finish this 44 Indian Chief . It has a 6v Lucas 3 brush dynamo which is working fine when spun with a hand drill . The problem is that it puts out charge only at a higher RPM than the engine is turning it at which I'm guessing is moderfied of a car and there is no room to increase the size of the drive pully . The only alternative I see now is to increase the number of turns in the 2 field coils using the next thinner gague of wire trying to keep the ohms as near as possible to the specs . Has anyone have any experience or has already done field coil windings and can give me some tips . I checke each original field has 136 turns of 21 gague copper wire . I tried with 203 turns of 22 gague but has turned a little too bulky to fit . Thanks in advance for whatever help .
Being restoring antique and classic motorcycles ( mostly British ) for the last 40 odd years and am now trying to finish this 44 Indian Chief . It has a 6v Lucas 3 brush dynamo which is working fine when spun with a hand drill . The problem is that it puts out charge only at a higher RPM than the engine is turning it at which I'm guessing is moderfied of a car and there is no room to increase the size of the drive pully . The only alternative I see now is to increase the number of turns in the 2 field coils using the next thinner gague of wire trying to keep the ohms as near as possible to the specs . Has anyone have any experience or has already done field coil windings and can give me some tips . I checke each original field has 136 turns of 21 gague copper wire . I tried with 203 turns of 22 gague but has turned a little too bulky to fit . Thanks in advance for whatever help .
