Alternator Upgrade:
These alternators are ready to install. Just follow the directions.
Charge your battery before installation of the Alternator.
Failure to do so WILL shorten the life of your alternator.
In the event your unit does not work
1) Recheck your connections.
2) Make sure a good Dash Alternator light bulb is in the circuit
NO DASH ALTERNATOR LIGHT= NO CHARGING
Please Note! It may be necessary to reverse the large bushing on the mounting ear in order to fit properly.
Additionally, Check the clearance between the lower alternator adjusting arm and the alternator fan to make sure there is no binding after the install. If not slide the lower arm off it’s post and cut or grind about ¼ inch of material to get the proper clearance from the fan. If your belt doesn’t fit see your local auto parts store and take your old belt with you. They will be able to fit you up with the right size belt. MGC required Napa #25-9420. A narrower number is 25-7410.
Wiring: You will only need to do some simple wiring.
1.) Remove the Lucas plug
2.) Using eyelets (provided) attach Large and Small Solid Brown wires from the starter along with the Large Red wire (S) on the new plug, to the battery post on the alternator.
3.) Connect the Small Brown (L) on the new plug to the Brown with yellow tracer from the wire harness (this is the alternator light on the dash and must be in good working order). (Provided are 1/4 inch male/female spade connectors.)
4.) The remaining Brown wire (F) and Gray wire (P) on the new plug, can be cut off If desired.
Please charge your battery before installation of the Alternator.
Note: Bushing may need to be reversed to fit and acquire better alignment.
That's it!
