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Unread 10-20-2009, 02:56 PM   #1
petey156
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charging system rewire 22si

I would like to rewire my charging system to work with a delco 22si like this.

Delco 22SI alternator 150 amp 12volt J180 mount:eBay Motors (item 260408920332 end time Nov-07-09 11:42:11 PST)

I have one, that all i need is a pulley for it. I got it for free, and napa tested it to be good, so I can make a bracket for it,

are they a true single wire alternator? meaning that there will be one wire leaving the alternator and going to the battery? no more white and red wires? anyone know where to get a pulley that will fit it?

thanks

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Unread 10-22-2009, 05:06 PM   #2
petey156
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on the delco website i found that I should run #2 wire from the alternator to the battery, and a 22si will put out 85 amps at idle. all I can say is wow, they are a good bit larger than the 12si but it is truly a sigle wire system. no more excite wire, resistor, or light bulb.
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Unread 10-23-2009, 12:50 AM   #3
Cutlass327
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The listing ended.. Any other link for a pic?
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Unread 10-23-2009, 04:36 AM   #4
petey156
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Delco 22SI alternator 150 amp 12volt J180 mount:eBay Motors (item 260408920332 end time Nov-07-09 11:42:11 PST)
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Unread 10-23-2009, 07:17 AM   #5
Mike Romain
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Well, the photo does show 3 connections on the back, so I would suspect you need the same kind of hookup as the 12 SI.
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Unread 10-23-2009, 10:02 AM   #6
JeepHammer
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It's just a heavy duty case version of the CS 141, nothing special about it.
They can all be made into 'One Wire' with a regulator change, but you do have to keep in mind that 'One Wire' and 'Computer' usually don't get along too well,
Neither do some sensitive electronics you might have plugged into that charging system...

The larger alternators Delco makes have a 'Spread Foot' mounting, and that makes the difficult to mount on the front of AMC V-8 engines, You often have to move them way up or way out front of the engine, and belts/pully alignment become an issue then.

If you mount them low on the engine, you are asking for trail debris, sand, mud, ect to wind up in the alternator,
And abrasives INSIDE the alternator are usually a bad idea!

If you find a plastic block inserted into the connector where the normal voltage regulator wiring should plug into, then you have a true 'One Wire'.

If it DOES NOT have a plastic block covering the connector,
then you have a 'Mulit-Use' regulator, or a standard regulator in the alternator.

The quick way to find out what you have is to take it to the alternator testing place,
Spin the alternator with nothing more than the ground wire hooked up to the frame,
And the Positive wire hooked to the 'BAT' terminal on the back,
And see if it charges when spun.

If it charges at 14.5 volts when spun with nothing more than the 12 volt positive supply hooked up to the large back terminal,
Then it's probably a 'One Wire' regulator in the unit.

Pulleys are easy to get at any shop or NAPA store.
Alternator & Starter rebuild shops would be cheaper than NAPA.
MAKE SURE YOU MEASURE THE WIDTH OF YOUR BELTS BEFORE YOU GO TO ORDER!
Very easy to get a pulley for an industrial alternator with a belt groove too wide for common automotive belts...

There are some extra terminals, dimensions, ect. you might want to chase these links,
Delco's specifications,
http://www.delcoremy.com/pdfs/instru...t/10513391.pdf

http://www.delcoremy.com/Alt22SI.aspx
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