[C320-list] High Output Alternators

[Jack Fitzgibbon]

In 07 we installed a Balmar 110 amp alternator with a single belt configuration on the 3GM30F.  Have adjusted belt tension periodically, otherwise no issues with the 110.   

Jack F.
s/v wetted bliss 
#441

Sent from my iPhone

> On Nov 23, 2018, at 6:32 PM, Troy Dunn <troutwarrior at gmail.com> wrote:
> 
> Jerry
> 
> I've been researching a new alternator for the Wonky Dog for about a year
> now...or it least it seems that way.   Anyhow, 125 amps on a single belt
> could be a problem or it could be fine.  If like most high output
> alternator configurations you also have a decent external voltage regulator
> with battery and alternator temperature sensing then it is quite possible
> that the PO used a 'belt manager' function in the voltage regulator to back
> off the output of the alternator to say 80 amps which would be fine on a
> single belt.   If you don't see a lot of belt dust on the engine cover,
> it's probably fine.
> 
> You should spend some time however getting to know the type of voltage
> regulator you have and how it is set up.   For a 200 amp hour AGM bank of
> batteries 100 amps is plenty of current to properly charge your batteries
> without negatively affecting the life of the batteries.   If you have FLA
> batteries, they are much more fore giving and you can get away with a much
> larger bank on the same alternator without impacting battery life.  There
> are a lot more variables involved that will be different for just about
> everyone these are just rules of thumb.   It's important that the
> alternator not only provides sufficient amps during bulk charge, but also
> that it hits the right voltage.  Check out RC's articles on Marinehowto if
> you want to get better educated on this stuff.   His articles are pretty
> well researched and written.
> 
> Not sure why, but your original emails are not hitting my feed.   Seems
> like this happens with all Yahoo accounts...
> 
> Cheers
> 
> Troy Dunn
> Wonky Dog
> Hull #514