View Full Version : HO Alternator...

01-05-2012, 08:08 AM
So www.mechman.com is pretty reputable in the car audio field for making some bad *** alts. I spoke with a rep and he assured me he has made alts for boats. He quotes me 220amp direct bolt on for $375 + shipping.

What would be the main difference between a standard car alt and a "marine" alt. Looking at my current alt, it sure has some signs of rust on it... not very marine friendly looking if you ask me...

Anything internal?

east tx skier
01-05-2012, 08:57 AM
You definitely want a marine alternator. For lack of a more technical description, they are sealed to prevent sparks that don't mix well with gasoline.

01-05-2012, 09:15 AM
right, so they are ignition safe (i think that is the word right?)

01-05-2012, 09:27 AM
right, so they are ignition safe (i think that is the word right?)
ignition protected

01-05-2012, 09:28 AM
gotcha, i found this:

Marine starters and alternators are shielded at he commutator to prevent arcing from possible gasoline vapor explosion. They are required by law and are for your safety.

I guess i could ask the guy if he is aware of this shielding?

01-05-2012, 09:44 AM
Speaking with the builder from mechman, he said they they do an enclosed rectifier for marine stuff. He did say they his alternators are not coast guard approved, but then again ive yet to find any manufacture of HO alts that says they are.