Question about voltage regulator

[chriscokid]

I need to replace my voltage reg. my book shows that the tractor has a 90 watt generator.... so do i put a 45 amp reg. on or a 35 amp reg.

It is a 6 volt system

[Old Magnet]

amps = watts divided by voltage
That only comes up to 15 amps.....you can use either regulator but your kind of working the low end of its capacity.

[chriscokid]

well it seems that some one has put a 6 volt battery and a 12 regulator.. How can you test the generator or pony starter to see what voltage it is supose to be.

[chriscokid]

either i have asked a stupid question or no one wants to answer it?

If it is a 12 volt system would a 6 volt battery crank the pony starter, would it have enough juice to pull the solenoied in ?

[ccjersey]

I never saw one that was 12 volts, except for those where someone just stuck a 12 volt battery in it to get it to crank faster and be simple to jump with a pickup. Many of them get exposed to 12 volts just jumping straight from the pickup to the starter solenoid, no battery!

If you use 12 volt battery on 6 volt system, obviously it won't charge through the 6V regulator enough to keep the battery from dying, but it will spin the starter really well and engage the solenoid just fine. You won't want to go for long cranking times due to the over voltage, but most of them I have done that with are still going after many years, so it's not that hard on the solenoid etc.

Using a 6 volt on a 12 volt system, no, it wouldn't pull the solenoid in well at all, probably would chatter. I have seen a 24 volt crank with a 12 volt battery under ideal conditions, once! The pony motor starters I have been around aren't exactly powerhouses on 6 volts, and sound a lot better on 12 volts.

The regulator and battery are what mainly determines the system voltage. The generators and starters are able to do either voltage, after a fashion

[Rd6 plower]

What about using a 8 volt battery? what do you have to change in order for it to charge properly?

[jw45]

a voltage regulator is just that it controls voltage if you spin a generator without it you will put out unlimited voltage destroy its self just put the 12 volt regulator on it set the voltage at 13.2 volts install 12 volt battery dont worry about 6 volt starter been using them on hotrods for years gm sells 6 volt fields for thier starters well mabe not now they were hijacked the generator should be ok its life span will be shorter but should charge ok

[chriscokid]

thanks guys,
took the gen. off because it overheated and got it tested, it is not working now, so a rebuild is ness. thanks for all the input