help with mercruiser 470 with crankshaft hung generator

[bewerewolf]

I did a rebuild on a 470 Was wondering if anybody has ever swapped out the generator/alt. that is on the crankshaft and put in a harmonic balancer and a belt drive alt. on one?
I have been told that those alt. are not that reliable, so don't know why it wouldn't work.
Any help with this would appreciated
thank you

 

[Faztbullet]

Pull the stator from under the flywheel and install this kit...

Amazon.com: Sierra 18-5953-1 Alternator Conversion Kit for Mercruiser 224/3.7L : Automotive

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[Scott Danforth]

the outboard stator that mercruiser put underneath the damper was limited on output (really really low output). additionally, it requires a water-cooled voltage regulator that is prone to failure. the voltage regulator is about $500. the stator coil is extremely simple, however that is not the failure point.

the aftermarket alternator kits are cheaper and give you the ability to power a radio as well as the lights.

 

[Alumarine]

There's also Breezeworks that offers a kit.

 

[bewerewolf]

thanks for the replys. As part of the upgrade all i see is the pulley that is bolted to the rotor. of the old alternator. Is there anything that balances the crankshaft, IE; harmonic balancer. Every kit that i have seen doesn't address this issue. I am missing something.

 

[Faztbullet]

The flywheel is balanced so no need for balancer, just remove stator

 

[bewerewolf]

Thank you Faztbullet i was wondering about that. The stator is doesnt working anymore and the rotor has a magnet missing so i can pull the rest of them out and i am good to go.

 

[Faztbullet]

No you need magnets as that is weight flywheel is balanced to.

 

[bewerewolf]

So then i am looking at buying a rotor or a 12 lb. harmonic balancer. The 12lb being the weight of the rotor.