|11-26-2010 03:27 AM|
|EOD Guy||Thanks, I'm going to swap in a LS1 etc........ building a punch sheet. Trying to make up my mind on going with a painless system or holding off etc....|
|11-25-2010 09:43 PM|
on a GM A-body it's easier if you just cut the brown wire at the regulator and bring it over to the alternator, that's the idiot light.
that goes to the terminal furthest from the battery post on the back.
then jumper the other terminal straight to the battery post and you are done.
I would recomend replacing the charging wire with at least 10ga.. 8 would be better if you go with a CS130.
I've had a CS130 lockup.. on my 86 astro van.. it started.. but then shrieked like crazy and had smoke rolling off the belt. thankfully, even tho the astro used a poly-v belt for the alternator, it was still the old style 3-belt design, and the other 2 belts ran around the waterpump, so I just took the alternator belt off and drove home I still use a basic v-belt on the monte carlo which means it slips a bit.. but that's fine for now
FYI.. I got my information backwards on that first post I made.. the terminal nearest the battery post is the SENSE wire.. not the light... guess that's what I get for posting at 3am when I can't sleep.. lol.. sorry
|11-25-2010 08:54 PM|
(The color codes are wrong for our older vehicles, the red wire "should" be blue, and the white wire might originally be white, black, or black with white tracer.)
|11-25-2010 07:32 PM|
|EOD Guy||What was involved in converting over from ext to internal regulator?|
|11-25-2010 02:22 AM|
Gotta be careful with the CS130. Rear bearing failure from overheating was epidemic. When the alternator locks up, you won't be able to start the engine without taking the belt off--starter isn't powerful enough to crank the engine when the alternator locks up. Sometimes they'll even shred the belt.
I always considered the CS part of CS130 to have the same meaning as the "CS" in the movie American Graffiti.
Far as I know, the CS144 doesn't have the same reputation EXCEPT when installed on the 3.4 DOHC engine in Luminas and the other "W" bodies--and that's due to engine compartment heat/alternator location, not defective alternator design.
|11-25-2010 01:36 AM|
on an internal regulated alternator, of the two small terminals in the side. the terminal nearest the battery post on the back is the warning light terminal
I converted my 72 monte from external to a basic internal 10si, up to a 12si ,back down to a 10si, and finally up to a CS130 series alt...
just put a CS130 in it and forget the rest, you will be much happier
once I upgraded to dual electric fans, the si series alt's just can't produce enough output at idle to keep up with the demands of the HVAC, lights, electric fans, rear blower motor, stereo.. etc.
it was fine while moving.. but at an idle... voltage would just drop off down to 11v and that wasn't a good thing
the CS130 charges like gangbusters at idle. and I've heard the CS144's are even better.
|11-25-2010 01:07 AM|
There's a two-terminal connector on either the internal-regulated 10- or 12-SI style, or the external regulated 10DN alternator.
External regulator connectors are side-by-side parallel like this: ||
Internal regulator connectors are in-line parallel like this: - -
|11-21-2010 02:15 PM|
Just to clear it up, the top one is internally regulated and the bottom is external. The writing didn't show up in the place i wanted it too. lol.
|11-21-2010 01:01 PM|
|11-21-2010 08:07 AM|
The stock charge wire on my truck, which came with a 63 amp 10si alternator, is a 10 gauge charge wire with a 14 gauge fusible. 8 gauge charge wire is better, but 8 gauge is much harder to find than 10 gauge wire in most of the parts stores.
During a trip to the pick and pull I got a section of 8 gauge wire charge with a 12 gauge fusible link from a 90's GM pickup, and replaced my stock wire. There are a lot of these trucks in the junkyard, and they charge you very little for the wire.
|11-20-2010 03:02 PM|
I just looked again and it might be 8 gauge. In any event, I'm going to re-wire with 8 gauge so I'll know for sure.
|11-20-2010 02:57 PM|
|11-20-2010 01:42 PM|
Thanks for you help! I am more confident I have the alternator wired correctly...now I'm on to wiring the coil through the resistor. Keep your fingers crossed that I got that wired right!
|11-17-2010 07:08 PM|
I think 40 ohm. Nice diagrams.
|11-17-2010 06:55 PM|
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