100 amp alternator

[LarryW]

New alternator. Made from a GM water pump pulley, delco 100amp alternator and a Internation Harvester Cub Cadet generator pulley. I welded the water pump pulley on the backside of the clutch after cutting out the middle. I measured it out, tacked it on. Measured and spun it. Turned out to be 100% true. Turned out great.

[LarryW]

[Don]

Nice job, Larry- you're pretty handy. Do you run a lot of electric accessories on your machine?

[LarryW]

Nice job, Larry- you're pretty handy. Do you run a lot of electric accessories on your machine?

Thanks Don, I dont run alot of electric accessories yet but was thinking maybe putting a trolling motor on it.
Larry

[lewis]

Nice job

Good looking work. Trolling Motor plus a killer sound system
You've got the juice!!!!

Just kidding: It is nice when things go right. Job well done.

[Jeff t-boss]

How much do you think it will affect your performance if at all? You do have a nice setup there. Good work.

[LarryW]

Thanks guys,

I have felt no power differance but I havent really worked the alternator hard. I dont think it would be much of a factor. It has more power then is really needed most of the time. For my needs anyways. I mean I have towed logs, pulled stuck atv's, climbed hills... and never needed more power, just traction.

[whipper-ag]

Larry, thats not a bad idea. I see a big Boom Box in your future.
Come to the Ledges, we'll hook up to you for our music.

Whipper

[LarryW]

Larry, thats not a bad idea. I see a big Boom Box in your future.
Come to the Ledges, we'll hook up to you for our music.

Whipper

lol, I would trade music for beer but I am unable to go.

As for the bogging it down I left the switch on and killed the battery. I started it with the rope and I didnt notice anything like it was bogging down. It even idled fine. I guess I will try jump starting something and see if I hear a differance like in a truck. I cant think of anything else with a severe draw.

[GREASEMONKEY]

Great writeup on the swap! You were curious about big draw items. The winch if you have one! The 3000lb winch on mine is rated to pull direct 220a under load! There's a correct way to figure out how to winch, and how to charge!

The majority of winch MFG's tell you to not winch more than 30sec, and cool down for 2-3min. The theory of operation is if you draw 250a for 30 sec. andhave a 50a alternator, it will take 1min to recharge the 50a into the battery, so that's 5min to recharge 250a. Sounds insane,and no I don't listen to the theory, but I can tell ya it is possible to overheat the winch, and fry the motor, and is also possible to over workthe alternator trying to recharge a depleted battery from winching!

[LarryW]

Great writeup on the swap! You were curious about big draw items. The winch if you have one!

Hey thanks Greasemonkey.

I dont have a winch. But I updated in comments of the photo and never updated here so I will say I have had the battery completely dead. Pulled rope to start. With lights on and charging completely dead lawmower style batteriy I didnt notice any power differance on the engine. This has me wondering because I was told someone else did same thing and it bogged it down running big offroad lights. The only thing I can think of is the pulley ratio may be his factor. Mine is roughly spinning the alternator 4:1.

[Roger S]

You'd expect a noticable pull on the engine.. Maybe that little battery won't take a high amp flow.

[patb069]

alternator

Hi Larry. would you be willing to duplicate your handiwork if I sent you the clutch and get the pully. I am running my superchief off aMazda Miata battery. I have big off road lights on my rollbar that I have yet to hook up because I dont think the stock alternator on the G50B has enough juice to keep up with the draw from the lights. Your setup would solve my problem. I just dont have any welding skills. Iwould be more than happy to pay for the service. Let me know. Thanks

-Pat

[LarryW]

PM sent.

[brushcutter]

Larry,
Sweet job on the alt. rigging!have you thought about rigging up an air compressor for on trail flats and such.Also with that kind of power you could even run one of the welders that the rock crawlers use for on trail repairsWOW! Then with the air system you could throw on a couple impact wrenches and some sockets and be a rolling amphib repair station! You could be really really popular on long treks through tuff country!WOW!!! Talk about possibilities!