Force 125 rectifire vs 1977 Chrysler voltage regulator

[Shifflett115]

Hey guys I have a 1985 force 125 outboard with a rectifire , I was thinking a out changing the rectifire with a voltage regulator from a 1977 Chrysler 135 outboard , any thoughts , would I benifit from it meaning no more overcharging ?

 

[pnwboat]

I would probably work as long as it is rated for the amperage that the 1985 stator puts out. Unfortunately I've never seen any published amperage readings for the Force 1985 stator battery charging winding, or the Chrysler 1977 stator battery charging winding. The other problem is that the 1977 regulator doesn't use the modern solid state internal components which tend to degrade with time.

A safer bet would be to use a regulator from a later (1995 - 1998) model Force motor. This has been done successfully many times with no problems.

 

[pnwboat]

Just wanted to clarify that the older 1977 regulator has components that tend to degrade with time, as opposed to the newer solid state components which do not.

 

[Frank Acampora]

I have asked that question of an electrician without getting a satisfactory answer. The 85 rectifier is solid state and works with a 20 pole stator. The Chrysler regulator/rectifier (Motorola) is designed for a 12 pole alternator. No one can tell me if the different frequency will affect it.

The only thing I can say is: If you have an extra and don't mind frying it.Try it! Then, please report back with results. Since the charging coil for the 20 pole alternator is dedicated to the battery I doubt you will fry the battery or stator. You may (or will) need to change tachometer signal.