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propellor shaft alternator


davidlambertsen...
 

Richard,<br><br>Yes, please find the model number
of your Motorola Marine alternator, if you can.
Prestolite bought Motorola Marine, but cannot match up my
Valeo part numbers.<br><br>I checked my notes from a
conversation with Valeo. The correct 25 amp alternator works
at 380 RPM, not 680. Most alternators will not
produce electricity with less than 1100 RPM, I
believe.<br><br>My problem is that Amel wants about $750 plus
shipping for this alternator!<br><br>I would appreciate
your help. Thanks, David<br><br>I would appreciate
your help. Thanks. David


closereach...
 

David,<br>It's also a Motorola Marine alternator,
made in France. I don't know if it's the original, but
it's been on the since we've owned it. I should have
asked when I had it rebuilt what the rpm req'ts were!
If you want, I can try to find the model # of the
unit, if that helps.<br>Richard


davidlambertsen...
 

Richard,<br>You are lucky, because you seem to
have the right alternator! Was this alternator on your
boat when you bought it? Or, did you replace a Valeo
with a Motorola? Do you know the RPM minimum
requirements or any special features?<br><br> Alternators are
not rocket science, so I know they can be repaired.
My problem is that I have a replacement 75 amp
alternator which works I test it with the engine running,
but under sail, I do not get any output. I believe I
need a 25 amp alternator.<br><br>I have learned about
the need for output at low RPMs (about 680), which
makes sense. Now, I am trying to find a US source of an
alternator with the correct specifications.<br><br>Any other
thoughts would be appreciated.<br><br>Merci. David s/v
Have Fun!


davidlambertsen...
 

Koen, <br><br>I actually have a Motorola Marine
alternator, but it does not work. It was a spare part on my
boat when I purchased it. This Motorola alternator may
be the wrong alternator. It needs 1200+ RPM to
generate electricity. The correct Valeo alternator works
at about 680 RPM.<br><br>I will contact Motorola to
determine whether I can get the correct alternator. Do you
have any other suggestions, please? <br><br>Thank you
for your help and ideas?<br><br>David


closereach...
 

David,<br>Our Sharki has a 20amp Motorola alternator. Last year had it completely rebuilt at a local shop (Melbourne, FL) for $95.<br>Richard<br>S/V Xanareva


koenvelleman...
 

Hello David,<br><br>Motorola also supplies this alternator.<br>But U can also use a standard automotive alternator and have it isolated by a automotive electric workshop.<br><br>success,<br><br>Koen


davidlambertsen...
 

I need to replace the propellor shaft alternator
on my Maramu. It is made by Valeo, and is very
expensive if purchased from Amel. Does anyone know a
supplier of this alternator other than Amel? Also, what is
the European equivalent of West Marine for parts?
RSVP - Merci.<br><br>David Lambertsen<br>s/v Have
Fun!<br>1989 Amel Maramu 258