Voltage Regulator???

[Boilermaker]

I have a 1978 Johnny 115, and as far as I can tell there is NO voltage regulator.<br />Can one be added??? <br />If so, how much will it cost & what part do I get. I don't have a problem wiring>>>I'm an electronics tech.<br />I see my voltage gauge reads 18V after crusing for a while & don't want to cook the battery. I also want to add some electronics that can't work over 17V.<br />Thanks for any help.<br />Jim

 

[seahorse5]

Re: Voltage Regulator???

Usually overvoltage on an unregulated charging system is caused by using a maintenance free battery or a battery of too small a capacity. Normally a group 27 works well on those motors, or another fix is to wire 2 batteries in parallel.<br /><br />I believe the water cooled regulator from an early 1990's 90hp crossflow motor will fit your engine. They run about $80.

 

[Boilermaker]

Re: Voltage Regulator???

Water cooled???<br />How about the regulator from a 1980-81 V4???wiring looks very similar. Or the 1978 V6 regulator??<br />Anyone ever do the upgrade????<br />

 

[mbb]

Re: Voltage Regulator???

Find out if there was a version of your block that had a regulator. I upgraded my 95 112 to a regulated system, and put a larger amp stator on also. both were standard on the 25inch shaft version of my motor. On mine, the regulator is water cooled. It mounts where a blind plate is on top between the two cylinder banks. There was a lifting eye there before I put the regulator in.

 

[Boilermaker]

Re: Voltage Regulator???

OK, How do I find that out???

 

[seahorse5]

Re: Voltage Regulator???

Boilermaker,<br /><br />Have your dealer show you a #585195 regulator and see if it matches up with the water cover on the top aft of your cylinder block.<br /><br />This is the one I mentioned in my previous post and the one MBB had installed on his 112hp.

 

[seahorse5]

Re: Voltage Regulator???

Boilermaker,<br /><br />Have your dealer show you a #585195 regulator and see if it matches up with the water cover on the top aft of your cylinder block.<br /><br />This is the one I mentioned in my previous post and the one MBB had installed on his 112hp.

 

[Boilermaker]

Re: Voltage Regulator???

Thanks Guys!<br /> I talked to my mechanic/OMC parts guy & he said the regulator would be A LOT more ($200+), then buying another battery and running in Parallel. I think I will pick up a battery & a Battery switch>>>this way I can run 2 batterys when running & switch to 1 battery when fishing & running my electronics>>radios & fish sounder, and have the backup.

 

[seahorse5]

Re: Voltage Regulator???

Did your parts person just look up in the book, or did he (or she) take the 585195 regulator to your motor to see if it would fit?

 

[Dhadley]

Re: Voltage Regulator???

Any water cooled reg/rec from a crossflow will work. You can use the one for the 35 amp system even if you have the smaller charging system. <br /><br />The ones from a looper are a different shape and will not fit in the hole.<br /><br />CDI and Pro Marine make new rec/reg's and are just under $200. They also make 10 amp ones and retail for less than $70. The 10 amp ones are replacements for the 585195 Seahorse mentions.

 

[Boilermaker]

Re: Voltage Regulator???

Thanks Gents.<br />The mechanic was working on the engine when I asked about the regulator>>so he saw what cover was on the block. <br />DHADLEY>>>(hope life is getting back to normal)How many amps stator is in my 1978 115?<br />And why water cooled?? Aren't they just relays that disconnect the stator coil? Or do they have to absorb/dissipate all the energy from the charging coils into a resistor???<br />As always>>>THANKS for the continuing education of the BOILERMAKER