Mercruiser 470 Charging Fix

[Don S]

Re: Mercruiser 470 Charging Fix

quick google search looks like a TON of fords used external voltage regs.
this one happens to have the correct labels. can anyone think of why this WOULDN'T work? seems like a simple/ingenious idea...

The Ford external regulators are regulating an alternator, not a rotor stator setup like the 470's have. Two completely different things.

 

[nola mike]

Re: Mercruiser 470 Charging Fix

The Ford external regulators are regulating an alternator, not a rotor stator setup like the 470's have. Two completely different things.

from the regulator's perspective, what's the difference? isn't it seeing a 40 amp (or whatever) a/c current in either case?

 

[bruceb58]

Re: Mercruiser 470 Charging Fix

The regulator has no idea of current. It sees an output voltage and supplies the required field voltage to achieve this output voltage.

 

[nola mike]

Re: Mercruiser 470 Charging Fix

The regulator has no idea of current. It sees an output voltage and supplies the required field voltage to achieve this output voltage.

ok, but how is the premise different (and i assume you mean "sees and INPUT voltage"?)? the regulator is seeing an a/c voltage, and outputs a d/c voltage, right?
as i understand it, the 470 regulator senses battery voltage. if greater than 15v or so, the output from the regulator to the battery is cut. how does an automotive application differ?

 

[BrianD1973]

Re: Mercruiser 470 Charging Fix

Hmmm, interesting.... seems there's a lot of questions being thrown out there and no one responding back with answers to em... only more questions... lol Sure sounds like a logical fix?