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skitilldark
05-23-2006, 05:06 PM
I've got to replace the 51 amp original alternator in my X-9 to run more accessories. I thought all along that I had a 90 amp in there, but apparently not. Question is, should I replace with a 90 or is it okay to go bigger than that? MC says they don't suggest going beyond 90. Anyone out there have any input on this? thanks.

NatesGr8
05-23-2006, 07:49 PM
try a search, this has been discussed recently. Rebuilds are cheap, new alternators are expensive. If you do upgrade, make sure the existing wiring can handle the load.

prostar205
05-23-2006, 09:24 PM
This is right up my alley. I just upgraded my stock 51A Leece-Neville alternator on my L-18 engine to 101A. It works great except at idle it only applies 12.2V onto the battery. Anything over 1,000 rpms and I get 13.8V to each battery bank. I also upgraded ALL of the wiring to 2 AWG wires (ground and positive).

My rebuild was only $200. Definately less expensive than buying a new alternator.

skitilldark
05-24-2006, 09:53 AM
This is right up my alley. I just upgraded my stock 51A Leece-Neville alternator on my L-18 engine to 101A. It works great except at idle it only applies 12.2V onto the battery. Anything over 1,000 rpms and I get 13.8V to each battery bank. I also upgraded ALL of the wiring to 2 AWG wires (ground and positive).

My rebuild was only $200. Definately less expensive than buying a new alternator.


thanks so much for the advice!