201fireman Posted July 5, 2020 Share Posted July 5, 2020 I recently went to a 140 amp alternator (10si). I got an alternator wiring kit from MadElectrical and ran bigger wire out of the alternator. I also followed his recommendation and went to remote voltage sensing at the horn relay. Now the alternator gets hot when the car warms up and I can't tell if this is because it is a 140 amp alternator and I have it mid-mounted in front of the head (March pulley kit) instead of high up or there is something wrong. The new battery has good voltage and I checked the alternator temp with my laser temp pointer and it gets to about 125 degrees. I did do a positive and negative voltage drop test and the negative is .25, the positive I couldn't get because it moves all over (due to the rocky idle maybe?). Any thoughts? Quote Link to comment Share on other sites More sharing options...
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