by ncbkr2002 Thu Nov 01, 2012 12:11 pmhey guys .... i just picked up a 140 amp alt from a 95 caddy and i want to put it on my 69 G10 .... any advise or wiring issues i might have ?? also if anyone knows a wiring diagram i cud use for this swap i wud appreciate it .... thanks again
2 posters
about to install a 140 amp alt
ncbkr2002- Number of posts : 140
Location : Raleigh NC
Registration date : 2012-10-11
donivan65- Governor
- Number of posts : 12245
Location : San Diego, California
Registration date : 2008-05-12
Normally those high output alternators need 2 belts or a serpentine one to turn them,,,,,,,
ncbkr2002- Number of posts : 140
Location : Raleigh NC
Registration date : 2012-10-11
other than that .... any other issues Donivan ?? im about to swap out the serp pulley with the v-pulley ... if i need to put 2 v-pulleys on it where can i get a double v-pulley for the alt ?? thanks for all of the help
donivan65- Governor
- Number of posts : 12245
Location : San Diego, California
Registration date : 2008-05-12
Does that alternator look like this and have this type of connections? The wiring on the vans is the major problem,,,,,it is old and undersized for what we want to add on now,,,,,,Do you have a 6 or 8 cylinder,,,,,they do make 2 groove water pump pulleys,,,,as well as add on pulleys for the harmonic balancers and 2 groove new ones.....
donivan65- Governor
- Number of posts : 12245
Location : San Diego, California
Registration date : 2008-05-12
or this,,,,
ncbkr2002- Number of posts : 140
Location : Raleigh NC
Registration date : 2012-10-11
mine looks more like the bottom pic and i have a 230 .... my bottom crank pulley has 2 grooves .... the alt is off of a 95 caddy the plug has 2 wires and both are red ... one is slightly bigger than the other and i need to find out which one of those needs to go where ... any idea ??? thanks again for all of your help Donivan65 and anyone else who has any info on this .... ncbkr2002
donivan65- Governor
- Number of posts : 12245
Location : San Diego, California
Registration date : 2008-05-12
On that connector on the top of the alternator,,,is there 4 terminals in there?
ncbkr2002- Number of posts : 140
Location : Raleigh NC
Registration date : 2012-10-11
not sure ... ill look in the morning but i do know it has 2 red wires ... one smaller than the other .... im thinkin the larger is the one i need to jump over to the battery charge back wire/terminal so it will "excite" itself .... if the small one is for the idiot light can i hook that one up to the amp meter ?? my voltage gauge just has a C and D ... i guess for charge and discharge ?? can i hook the smaller wire to it and see if it is charging ??
donivan65- Governor
- Number of posts : 12245
Location : San Diego, California
Registration date : 2008-05-12
Normally,,,,the output is a terminal on the back of the alternator,,,it is bolted on,,,,the alternator needs another wire to sense the system voltage so the regulator knows when to turn off and on,,,,and you need another wire to turn the regulator on....and that could be the smallest of the 3 wires.....
ncbkr2002- Number of posts : 140
Location : Raleigh NC
Registration date : 2012-10-11
installation complete and working very good ... almost a direct replacement. i didnt have to modify anything but the adjustment bracket by opening the groove from 5/16 to 3/8 so the bolt for the new alt would fit. thanks for all of the help guys.
