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Old 06-22-2010, 07:10 AM
Richard D. Hord Richard D. Hord is offline
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Hey Jack,
I could never get them to charge at all. I tried to get in touch with C.R.A.P. for the bracket with no luck. So I done some modifications and made it work! Here's what I posted!
Generator to Alternator conversion
Houston we have power!
Boy it was a booger. I'm going to try to explain what I done to complete this project. Special thanks to Ray Clark for all his information and his input.
I tried to contact C.R.A.P. for bracket and never got a response. So I used what I had and it don't look bad at all. And best of all it works!!!
Disconnect and remove battery!
First you want to purchase one wire GM Del-co alternator with internal regulator and pulley. Remove old generator.
Measure from the radiator (the radiator is a stationary point of reference) to get you a dimension to the center line of the crank pulley and the fan pulley, (this dimension should be the same) write this dimension down. The alternator pulley needs to be the same dimension.
If your bracket is like mine it was all one piece, You got the front part that mounts to the water pump, a cross piece that ties to the rear part that bolts to the block.
Take a reciprocating saw and cut cross piece out, close to the back part and close to the front part.
Measure from the radiator back to front part of bracket, write that dimension down.
With pulley on new alternator hold rule, center line of pulley, on dimension you got on fan pulley and crank pulley center line (should be same) see how much you need to get to the front of mounting position on new alternator. EXAMPLE: mine was 3/4"
Remove fan and fan pulley from engine. Remove front part of alternator bracket. Remove upper stud, it will come out with vise grips and twist.
Now you need to make a list of things you need. I needed 12" 7/16" all-thread rod, two lock washers, two nuts, 2" x 3/8" bolt, 3" x 3/8" bolt, 6" x 1/2" ID galvanized pipe, 4" x 1/2" ID galvanize pipe, 3' number 8 wire, wire-end terminals and metric bolt and lock washer to fit Alternator hole for adjustment mounting bracket.
With the extra dimension you need to get front bracket out to be in line with outer pulleys, cut you two pieces off the 4" x 1/2" galvanized pipe (this is best done in vise)
Next is for the replacement for the stud you removed from the water pump. Take the 4" x 3/8" bolt and cut off threads and cut it long enough to accept the top part of front bracket plus shim, drive it into place where stud was and install galvanized pipe shim.
With the pieces of pipe you cut, shim out the front part of the bracket (stud and bolt) Attach front bracket to water pump. Use the 2" x 3/8" bolt.
Now measure from the front bracket to the rear bracket and deduct the Alternator mounting position. (Mine was minus two inches) this will give you the dimension you need to cut the 6" piece of pipe. Cut 6" pipe to that dimension.
Next measure from front bracket to back bracket and add enough to that dimension to except two lock washers, two washers and two nuts. Cut your all-thread rod to that dimension.
Remove tension bracket (mine had two bends in it) get bracket on solid surface and straighten bends with hammer (it needs to be straight) after you have done this reinstall.
Use your all-thread rod, put washer, lock washer and nut on one end. Start this into rear bracket and install pipe you have cut as shim. Work alternator into place and slide all-thread rod threw front bracket. Now install washer, lock washer and nut (hand tighten only) Bracket will be on front of alternator.
Now that alternator is hanging, jack up car set car jack stand in place and get under it. Align lower bracket and install metric bolt and lock nut (hand tighten only) Bracket will be on front of alternator.
Reinstall fan pulley and fan. Install belt. Tighten tension on belt, tighten tension nut and nuts on all-thread rod.
Take ARM wire (yellow wire that was attached to generator) and attach it and new number 8 wire with wire end connector to back of alternator. Tape up other two wires as they are not needed.
Attach other end of new number 8 wire with wire end terminal to battery side of solenoid. (where positive or red battery cable is connected)
Now to the voltage regulator. Gut it, disconnect any connections inside, and underneath, It is not needed, but I left mine because I wanted it to look original. Reinstall and hook it back up the way it was.
Arm post on voltage regulator you should have yellow heavy gauge wire and small yellow wire with black stripe. Go to wires on drivers side at firewall and look for small yellow wire with black stripe, cut it.
Reinstall battery.
Start car and check on fire wall for 12 volts, (I found this at relay in front of passenger) turn car off check for voltage again at that location, if it is dead attach wire then run to yellow wire with black stripe coming through firewall. Tape off other wire coming from Voltage regulator.
Start car and check voltage at ARM and BAT at voltage regulator, you should have 12 volts or a little more. (I had 13volts)
You should now have power and GEN light should go out when car is running.
Richard D. Hord
Attached Images
File Type: jpg ALTERNATOR.jpg (44.0 KB, 113 views)
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Last edited by Richard D. Hord : 06-22-2010 at 07:14 AM.
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