onan 6.5 mcck question?

lynneraye · Post by **lynneraye** » Fri Feb 25, 2011 8:42 am

does the onan genset I have in the 85 international has a charging system and the fly wheel has no magnets...please reply need to know

alexander38 · Post by **alexander38** » Fri Feb 25, 2011 12:28 pm

Can you be a clearer on what you need to know ?

g36 · Post by **g36** » Fri Feb 25, 2011 2:28 pm

are you asking if it charges its own battery? my onan 6.5 in my 78 f32 does.

lynneraye · Post by **lynneraye** » Fri Feb 25, 2011 7:17 pm

does the generator have a separate alternator?

Big D · Post by **Big D** » Fri Feb 25, 2011 9:48 pm

Charging system is usually part of the generator windings. No separate alternator (yes on bigger units)

alexander38 · Post by **alexander38** » Sat Feb 26, 2011 4:00 am

Look at the control panel. You should see 3 fuses the right is for the charging system., but some guys remove them , as they have their bank charger wired up to the gen battery.

Billd · Post by **Billd** » Sun Apr 10, 2011 12:39 pm

I've got a 1988 10.8 Convertible with the 6.5 MCCK onan. There is one set of windings that makes the power and throught the control panel some is converted to D.C. to charge the battery (as well as supplying the D.C. power to run the unit). If you have no output (bad solenoid or relays usually) from the windings the power required to keep the unit running isn't there and it will simply shutdown as soon as you stop cranking it. If the unit continues to run but isn't charging the battery it is usually the charger diode that's cooked. A wiring diagram will show where it's located (approximately).

Another option is to simply put a small 120V battery charger by the genny and whenever the genny is running the charger will look after the start batttery.

Bill

lynneraye · Post by **lynneraye** » Sun Apr 10, 2011 9:01 pm

everyone... thank you for answering the question at hand- rebuilt the genset, found by the internet and manual everything needed to know.
painted the bottom and waxed the hull besides putting the zincs on we put new props on. WE GO IN THE WATER ON FRIDAY! have a great season!!!!