1967 60HP SPORTFOUR ALTERNATOR OUTPUT

[WillsPride]

G'day All,

Finally got my vintage '67 60hp SportFour to idle correctly in the tank so I could put a multimeter on the output. Voltage at idle was about 16.5V to 18.5V. It has a new rectifier fitted. Are these alternator equipped old engines not fitted with a voltage regulator? Am i correct in assuming I should only use a traditional flooded cell lead acid battery?

Is it possible to wire in a voltage regulator?

I have a cranking/deep cycle 100AH auxiliary battery in my 4WD was going to use in the boat on days out but I recall from somewhere that a high charging voltage will kill an AGM battery, and it wasn't cheap!

I guess sealed AGM batteries were unheard of in 1967.

Thanks heaps

 

[gm280]

So this is an aftermarket alternator setup? :noidea: Of course you can add a voltage regulator on the output. Just know what the max output current capability is so you can install a voltage regulator that can handle the current involved. It is that simple. Usually voltage regulator have two input lines, one being ground and the other the positive input that comes from the rectifier. And then two outputs as well, one again being ground and the other one going to the battery positive terminal. The same ground can work for both input and output with the regulator. Hope that helps. Just get one that can handle a little more then the max current output from the rectifier and go for it. JMHO!

 

[jimmbo]

The 1967 60 hp had a 6 amp unregulated charging system. A flooded battery would be a better choice, also do not use a battery that doesn't have a way check the electrolyte level and add water(distilled) if necessary

 

[F_R]

Replace the standard unregulated rectifier with a regulated rectifier to control the voltage. CDI part number 193-0656. Get it here at iboats

 

[WillsPride]

So this is an aftermarket alternator setup? :noidea: Of course you can add a voltage regulator on the output. Just know what the max output current capability is so you can install a voltage regulator that can handle the current involved. It is that simple. Usually voltage regulator have two input lines, one being ground and the other the positive input that comes from the rectifier. And then two outputs as well, one again being ground and the other one going to the battery positive terminal. The same ground can work for both input and output with the regulator. Hope that helps. Just get one that can handle a little more then the max current output from the rectifier and go for it. JMHO!

The '67 60HP SportFour has a factory alternator, battery/coil ignition

 

[WillsPride]

Replace the standard unregulated rectifier with a regulated rectifier to control the voltage. CDI part number 193-0656. Get it here at iboats

Thanks F_R. $120 Aussie Dollars plus freight. Cheers .The factory battery box in my runabout is designed for a small battery, I'll pick up an inexpensive old style 9 plate wet cell battery with removable caps and keep an eye on the fluid level. Thanks everyone