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-   -   Atomic 4 Alternator replacement (http://www.sailnet.com/forums/atomic-4/89693-atomic-4-alternator-replacement.html)

TBG 07-14-2012 04:46 PM

Atomic 4 Alternator replacement
 
Is there any alternative to the pretty pricy ones at Moyers ? I thought there was a Delco that was compatible ????

SEMIJim 07-14-2012 04:55 PM

Re: Atomic 4 Alternator replacement
 
You want an alternator that's ignition protected. Otherwise: Gas fumes + spark = KA-BOOM!. Standard automotive alternators are probably not ignition protected, as gas fume build-up in an automobile engine compartment is unlikely and, even if things do catch fire, you can just get out of the car.

Jim

JimsCAL 07-14-2012 05:15 PM

Re: Atomic 4 Alternator replacement
 
How about this. Listed for Atomic 4.

Spider Marine Electric Supply, Inc.

Edit: Looks like the link doesn't hold the selection. Just use to menu on the left to find the Atomic 4 selections. Two options - 51 amp Delco for $170 and 37 amp Leece Neville for $185.

CalebD 07-14-2012 06:01 PM

Re: Atomic 4 Alternator replacement
 
I suppose that the stock 35 amp alternator that most A4 engines have is too small for your battery banks?
Have you priced Balmar alternators lately?
The 55 amp alt at MMI starts sounding pretty reasonably priced.
Even the 120 amp one is cheaper then any Balmar.

Good luck finding one that works with the A4 elsewhere.

SEMIJim 07-14-2012 07:08 PM

Re: Atomic 4 Alternator replacement
 
The other thing you have to consider is engine load. The A4 is only 30HP engine. Start adding significant alternator load to it and you may find yourself underpowered. ISTR reading of somebody who'd done just that to themselves, back not long after I started reading SN.

But that's something I have to add to The List. I'm sure we'll want more than that 35A alternator if we ever do start cruising.

Jim

tommays 07-14-2012 07:57 PM

Re: Atomic 4 Alternator replacement
 
http://i565.photobucket.com/albums/s...1_08130026.jpg

http://i565.photobucket.com/albums/s...1_08130028.jpg

Perfect fit OEM FIT IN THE ORIGINAL CASE WHY use anything else :confused:

Spider Marine Electric Supply, Inc.

Spider 51 amp unit as thats about all the belt and drive can REALLY handle no MATTER how big somebody else used on there

RobGallagher 07-14-2012 08:14 PM

Re: Atomic 4 Alternator replacement
 
Quote:

Originally Posted by TBG (Post 896321)
Is there any alternative to the pretty pricy ones at Moyers ? I thought there was a Delco that was compatible ????

Take yours to an alternator shop and see what they can do. You might be surprised at how helpful and knowing and reasonably priced some of these guys can be.

CalebD 07-14-2012 08:18 PM

Re: Atomic 4 Alternator replacement
 
Is this the one you used Tom Mays? NEW Motorola Leece Neville 12v 51 Amp Alternator: Alternators &amp Alternator
Leece Neville is a recognized and respected brand. Listed price is a tad cheaper then MMI but not by much.

travlineasy 07-14-2012 11:13 PM

Re: Atomic 4 Alternator replacement
 
I have a 100-amp alternator on my A4, had it rebuilt in Carney, MD for $95 last winter, works like a champ. And, it doesn't load down the engine, even when the entire bank of house batteries are low.

Gary :cool:

sailor29664 07-15-2012 10:12 AM

Re: Atomic 4 Alternator replacement
 
Had my alternator rebuilt this spring as well, got out for like 105US$...


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