Seems very strange to me and I would be investigating all your grounds and leads. It might just be a fluke that the orignal charged OK. I suspect maybe a ground problem that resolved when you gass the engine and it twisted on the mounts slightly? Try using a neg jumper cable, block to body ground to see if that helps. Or use neg jumper Block ground to body ground then use the pos to ground the block to the NEG battery post, Make sure you get the neg post! to Engine block. This should give you a quick check of the ground circuit to engine block. How is you gauge wired? To alt or to battery? It may be picking up something fromt he Alt diodes and getting confused? I know I swapped the 51 amp [IIRC] 73 alt onto my 69 when the stock 69 35 amp died. It was only a one terminal changeover to do and it worked like a champ. I'd give it to you but since it is a known good one I will probably just use it on the 65 when I get it running. Mark Price markprice242ATadelphia.net Morgantown, WV ---- Joe <jgray_55@xxxxxxxxx> wrote: > OK. About three years ago i replaced the locked up > 35amp Motorola alternator on my 67 Ambassador with a > rebuilt(loose use of the term rebuilt ) _______________________________________________ AMC-List mailing list AMC-List@xxxxxxxxxxxx http://www.wps.com/mailman/listinfo/amc-list or go to http://www.amc-list.com