Alternator Issue

L

lamphega

Petty Officer 2nd Class
Joined
Jan 11, 2003
Messages
147
I have a 1975 165hp Inline 6 that runs like a champ but my alternator is not putting out more than 12 volts. Looks like it's the original so no surprise there. I checked the prices of replacements and wow, 300$ and more! The Admiral would kill me if I tried that one after some other cash I have spent this year. Could I get by using a universal alternator like they sell on ebay? They have marine alternators, 1 wire at 105 amps Delco? They are new but I am sure not as well made as those they sell here on Iboats but would they work? She is a grand old boat that I don't use everyday but ready to splash soon.
 
Oshkosh1

Oshkosh1

Ensign
Joined
Jun 8, 2009
Messages
968
Re: Alternator Issue

It may be cheaper to have it locally rebuilt, then there's no question of the compatability.
 
B

becxlt

Seaman Apprentice
Joined
May 25, 2009
Messages
33
Re: Alternator Issue

Stay away from Flea Bay… the prices are appealing on Marine Grade alternators and starters
But they just don’t last. I bought starter from DB electrical EBay super seller the starter made it just passed the warranty then died . In the long run it wasn’t worth it .
 
achris

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
Re: Alternator Issue

Go with the rebuild rather than replace...
 
B

bonzoscott

Senior Chief Petty Officer
Joined
Jul 26, 2008
Messages
745
Re: Alternator Issue

Might just be the brushes and fairly easy to replace. Open it up and have a look. If not up to that, as stated, I think most major cities has an electric shop that repairs and rebuilds. J&N Electric here in Cincinnati rebuilt a reverse spin stater for me at ~ $57 I think it was.
 
Bt Doctur

Bt Doctur

Supreme Mariner
Joined
Aug 29, 2004
Messages
19,111
Re: Alternator Issue

55A is more than enough for a boat. Brushes for the GM are 2 bucks at the most.
 
L

lamphega

Petty Officer 2nd Class
Joined
Jan 11, 2003
Messages
147
Re: Alternator Issue

OK, it is off to a local shop for me on Monday
 
R

Robert D

Petty Officer 1st Class
Joined
Feb 21, 2009
Messages
338
Re: Alternator Issue

You might ask the local shop if they can just sell you the brushes, bearings and misc stuff that comes in the rebuild kit. Kits are typically under $25 for those.....but a local shop should rebuild it for you for around $50-$65. (It takes less than 30 minutes to do.....)
 
Don S

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Alternator Issue

Even if the problem is the brushes, have the shop do the job. You may not see the reason the brushes are bad, plus the shop checks everything else that you can't.
 
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