18RGU wont start (electrical)

[TRD184]

hey all.
im having an electrical issue with my RA23 18RGU
it had a brand new battery,which was ok for a few days, but the car started needing to be jump started. i got a new battery and all was good until the same thing happened. the car starts fine when its jump started and such, so i imagine the issue is the battery is not holding charge, i checked the alternator output, and it read 12.4V. as this is all i could think of that could possibly be the problem, i picked up a 2nd hand replacement and swapped them. i dont have my multimetre at the moment so i cant check the output, but it still occurs, driving the car doesnt help, it still dies (albeit it seems a little slower)
the voltage regulator is not wired up, but as far as i know that would make it charge at maximum output yeah? the battery in the car is quite big (470cca)
i really dont know what it could be, the only thing i can think of is the alternator is a doozy. if anyone has any ideas i would be really great

[RA35GT]

Dood, if the regulator isnt connected it wont charge.

[TRD184]

oh right....feck.
i just rang an auto elec friend of my dads and he said bosch make an alternator i could use that is internally regualated. he said he thought it was a bluebird one but isnt sure, does anyone know what it may be? i have no idea how to wire a regulator lol. he said theyre quite detailed

[RA35GT]

Plenty of internally regulated alternators you can use.
http://www.toymods.org.au/forums/sho...r+upgrade+18rg

wiring up the original alternator is only a little bit harder than the internally regulated alternator.
http://www.toymods.org.au/forums/sho...ght=alternator

[TRD184]

thanks man,
both those options are a bit daunting, im worried about stuffing something...guess i'll see how i go

[river]

Hi,

Won't a reg from the same period Corona or something be the same? Both ran 18R-C engines and hey... it's just a reg. Go to the wreckers and grab one out of a 77-79 rona.

seeyuzz
river

[RA35GT]

I assume you don't have the original regulator and loom?

[RAAAH23]

if i remember correctl my mechanic used a reg from a late model hyundi excel. same plug same mounts worked beautifully. ill see if i can get onto him about it.

[TRD184]

mmmmk wiring diagram was really helpful! wiring all done, rang an auto elec, said i needed a reg for RA23, 60 bucks got me a brand new one. hey presto she runs better then ever thank you!!