One more time to the top with a HUGE THANK YOU to all you "Vintage" folks. WOOHOO!! Houston, we have success. To those that posted most recently, the problem WAS the belt being too loose on the install of the new alternator. One of the problems of still working for a living is that my time for the RV is limited. So, although I did an R&R of the alternator, working alone I had trouble leveraging the alternator with a pry bar while tightening everything. As a result, what I thought was TIGHT was WAY LOOSE upon inspection this morning. With wife in tow (my lever), I was able to get the belt tight and tighten the bolts. Connected the battery, said a prayer and turned the key. Instantly the gauge reflected that the battery was charging and, DUH, the squeal was gone.
Thank you, thank you !!
Originally Posted by gt350ed
Hello! I'm new to the forum and looking for some assistance. We are the original owners of a 90 1/2 Bounder that has almost always been garaged and has only 35,000 original miles. It is a 454 engine and GM chassis.
My problem is two-fold. The guage on the dash is showing a discharge, or at least that the alternator is not charging the battery. Although I'm not sure, this COULD be caused by the fact that I may not have my wires correctly hooked up in the engine battery/coach batteries area.
I have put a voltmeter on the hot lead of the alternator and with a good ground, I'm only getting a reading of 12.45 volts at a fast idle and revving of the engine. The battery is fully charged and I have read that if so, the alternator won't charge higher. Not sure about that.
I'm at a loss. I don't want to pull the alternator unless I'm sure that is the problem. As you are aware, pulling the alternator is a bit of a nightmare.
I'm asking for some direction before I turn it over to a mechanic who will charge an arm and a leg for the alternator R&R.