I have the alt off as I wanted to change the charge volts as Wyatt had explained a while ago so proceeded to remove the regulator form casting. I could not pull it too far but did notice that it is not as he had mentioned with an adjustable link (see first pic) but does have a couple of screws on the outer face of regulator and I am wondering if one of these is for an adjustment. (see pic 2) Barry had mentioned that his is that way and as I have not heard back from Wyatt I was wondering if someone can help out here and tell me if that is what they are for. One of the screws has a plastic cap on it and the other does not. I also notice that there is a missing screw from the middle hole and looks like it was there a while ago judging by the mark of a screw head against the plate. I will just put a short one in to close that hole off.
John
John, you may have an adjustment mechanism under the bed near the switch box. Of course I think you probably would have noticed it. Mine looks like the photo attached. Or at least I think that is what this gadget is.
I will go take a look-thanks
John
John, on the Leese Neville 160 amp, the small hole in the regulator that had the white plastic screwed in plug is where you can adjust the voltage output.
Good luck
Dave, what do you do unscrew the plastic plug first then adjust the screww? That plastic plug is pretty tight and I did not want to force it . But I will see.
Kent- no box like yours there.
Leece Neville alternator voltage regulators come in several flavors and there is no guarantee what voltage regulator your will find. Also it is important to read how to remove and how to install the regulators.
There are several after-market manufacturers of voltages regulators that fit Leece-Neville alternators. Each make regulators that can look different.
Three step voltage regulators are popular and have two small straps on the underside and by switching places voltage can be set to one of three levels. Regulators have to be removed to make changes.
Our externally adjustable voltage regulator has an open hole on the outside of the regulator, near one of the two mounting screws. It originally came with a plastic plug covering the open hole. I have made adjustments several times, keeping voltage lower, around 13 when we were in 100 degree days and now the voltage has been increased to 13.5 now that we are in much cooler weather. Voltages are measured at house battery with engine running. I use a small flat screw driver and turn clockwise to increase voltage. Adjustment hole is on bottom of our alternator and nothing has to be removed to make adjustment.
Range of rotation is quite small and it not easy to set specific voltages as I do it with engine off to keep my hands away for moving belts.
There are other types of regulators, some not adjustable.
I think that Googling John's regulator part number 100650 may yield some results on what type it is and how to adjust. Our regulator does not look like John's photo.
now I have found the adjusting screw thru' the hole as Barry has detailed, and Dave M suggested I try. I actually checked the voltage at the engine battery and it showed around 13.59 to .69 with revs around 1500 and lower. Actually the volage gauge inside for my solar is showing just about that too when running. I did not adjust it but will keep my eye on it while running on a trip and now I know how it adjusts that was the main purpose of me taking it off. I will put a Digital vlt meter on the cigarette outlet while driving and that should suffice. I will just for the heck of it check voltage across the coach batteries.
Thanks guys for the help.
John
John, You might prefer checking voltage at the output of the isolator as there is a voltage frop across it, might be as much as 1 volt, anyway you can adjust the regulator for the desired output.
Simple if you have a good meter to check it.
Cheers