MEXICOWANDERER wrote:
You have a Leece-Neville part # 79000 voltage regulator. Verify your voltmeter is not lying to you. Go online eBay and query 79000 voltage regulator. Transpo brand HD model is good. These are flat compensating regs so LN decided. No temp adj slump. LN brushes for the 2500 series JB units are long. I never liked OEM 79000 regs so I used Transpo with good luck. DO NOT use a reman alt as they are JUNK except for the Prestolite Leece-Neville remans available at big rig manufacturer's parts counters. Stick with Transpo for regs and OEM for new or reman units.
Thanks. I wrote that if the new chassis batteries end up having no bearing on my problem, that I would simply replace the voltage regulator. I reasoned that it was obvious that the charging part of the alternator was working, therefore it has to be something telling the regulator that a high charge rate is called for, OR the regulator has failed somehow. Yes, the brushes are long, I replaced them a few years ago (one of them was broken in half). But, the symptoms then were quite different than what it's doing now. Thanks again, and I'll report later (I'm off to Sam's to purchase a couple of group 31 RV/Marine batteries).
Oops, I'll verify the high charging rate at the alternator (not an easy check). I'll check it at the batteries first.
