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Are you talking about a second wire attached to terminal 11? When people are trying to bypass an Onan board to see if they can start their Onan they often put a temporary jumper from terminal 11 to terminal 9. This bypasses the board and allows the fuel pump to run and the coil to work. If your...

The final story on this is that we worked on it a couple of hours and traced wires and checked isolator and found that there was 12 volts on the nichrome exciter wire to the alternator. But it still wouldn’t start. It sure seemed like an open wire somewhere. Bruce finally opened the alternator...

A battery reading of 12.6 volts indicates a low battery. A fully charged good battery should have 13.1 to 13.3 volts. You likely need a new battery. That is probably you had to use the boost in the past. Having to turn the key twice is indicative of a failing ignition switch. The switch down at...

OH. OK. I just read your post. Hope that solves your problem. I found that those spade connectors made of brass would crack when you try to tighten them so I replaced them with steel ones. But you have to put some dielectric grease on them to prevent corrosion. Emery Stora > >> OK >> Then I...

What is the make and model of your furnace? Emery Stora > > Greetings all, > > I can't figure out how to get the furnace to light off in my '77 Birchaven. > > Propane turned on, turning the thermostat up until it clicks and nothing happens. > > From other furnace traffic on the forum it...

If you are using a hydrocarbon instead of the original Freon R12 you cannot use the pressure information in the maintenance manual. You should not put in more than three 6 ounce cans or it won’t cool. You should fill to about 20 psi at 1500 rpm. Forget about static or non running pressures. If...

When they are asking for a chassis model they are expecting that you have a motorhome built on a truck chassis. The GMC motorhome were built by GM as a complete unit and not on a chassis from Chevrolet or other truck division. So you don’t have a model number to tell them. Emery Stora 77...

Can you please clarify exactly what refrigerant you are using. You say R12a but is this Freon 12 or is it HC12a? It makes a big difference in pressures. Emery Stora 77 Kingsley Frederick CO > > Hi Roy. Low side static is at 70psi. Running drops to about 40ish but goes up to about 45-50 and...

OK Then I still suspect that you have a loose connection somewhere. Check all your wires going to and from the generator section. Especially those of the brushes. As I said before those spade connectors made of brass will loosen up and loose their tension. If you try to squeeze them they may...

Why don’t you do it yourself. At the bottom of every email there is a link to unsubscribe or change list options. Just click on it. Emery Stora > > Hey please remove me from all comments thin is driving me nuts > > Sent from my iPhone > >> >> Look for one with good steel chassis frame and...

Did you have voltage at both sides of the circuit breaker? You said “yes, but it’s easy to see which side is which”. That confused me. If you indeed have viltage at both sides then you Onan is working. Emery Stora > >> Low ac voltage and high fluctuating hertz is more than luckily a...

With AC that shouldn’t make any difference but go ahead and try it if you want. Emery Stora > > Low ac voltage and high fluctuating hertz is more than luckily a problem with the bridge rectifier. > I noticed that the original is marked for ac but not + and -. > Try rotating it 180 degeres. >...

Did you check for voltage at both sides of the circuit breaker at the top of the Onan? I worked on a friend’s Onan once that had 120 volts at both sides so I knew that the Onan was generating power. I found that the wire leading to the plug in the electrical compartment had an open. There was a...

The control board has nothing to do with the charging only with motor starting and running and low oil pressure shutoff. If your bridge rectifier tests all right then you could try flashing the magnetic field. Check all connectors on the generator. There are some in plastic tubes by the...

Unfortunately they stoped with the 60’s. https://rvshare.com/blog/rv-history/ https://rvshare.com/blog/rv-history/ Emery Stora

I’ll send you some diagrams and listing of the 23’ and 26’ interiors of the Hughes. Emery Stora 77 Kingsley Frederick, CO > > Here goes nothing....anyone know or have a service manual, schematics, napkin drawings or what have you for the living area of the Hughes built units? > > > Im...

In the Maintenance Manual X7525 under the Rear Suspension section there are pages on the Dana compressor and also on the air valves. It may be of interest to you. Emery Stora 77 Kingsley Frederick, CO > > The story goes like this actually.....coach was fully aired up (i suspect max) all the...

I should have said that I have the upper pressure set at 135 for the shutoff switch. It will go quite a bit higher but I didn’t want to stress the airbags. Emery Stora > Begin forwarded message: > > From: Emery Stora > Subject: Re: [GMCnet] Air compressor question.... > Date: July 4, 2019 at...

Mine gives about 135 psi. John Clement used to have a rebuilding clinic at GMCMI conventions and he had a setup to test the Dana compressors which would show how long it would take to pump up and the maximum pressure it would reach. He would clean the notes with scotch brite pads. I...

Gerald This information might help you. I had posted this a long time ago. The delay relay is no longer available. You can get along without it as it just delays the opening of the flaps until the blower get up to speed. The delay relay is the smaller relay at the very top of the panel. It has...