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Author |
Date Posted |
Forum
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RE: Disappointing Cummins service
No fuel filters for a "C"? I think probably the filter the MH maker hung on the chassis is they one they don't carry.
The breaker? Thats an odd ball one, I'd be real surprised if they would have had it.
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gunny357
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07/30/10 03:37pm |
Class A Motorhomes
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RE: Cummins Engine Parts
Truck parts store.
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gunny357
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07/27/10 05:29pm |
Tech Issues
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RE: Why the 5 year tire rule? Blowouts!
What 5 year rule?
Who came up with it?
I have and will continue to use tires older than 5 years old.
95% of tire failures are due to under inflation. Did your buddy check tire pressure before heading out?
I'll take all those good 5 year old tires folks are foolishly throwing away and run them a few more years.
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gunny357
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07/25/10 02:10pm |
Class A Motorhomes
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RE: Changing both batterys in Duramax
Disconnect the negatives first, then the positives.
Do both batteries.
Reconnect the negatives last. Lessens the chance of doing some welding.
Why do folks think of doing positive first?
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gunny357
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07/25/10 07:16am |
Tech Issues
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RE: Onan Generator
$9K in repairs?
A whole complete new one doesn't cost that much.
Generac..............Won't be long after you get one of them you"ll be wishing for that Onan again. Generac = junk.
Was a known issue for 2 years, with an adhesive failing, allowing magnets to separate from the rotor, essentially destroying the entire generator end. Engines were still good, a new generator end was around $1,700 plus labor.
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gunny357
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07/24/10 03:40pm |
Class A Motorhomes
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RE: Propane genny problems
Moulden Supply in Jackson, Mississippi.
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gunny357
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07/24/10 11:19am |
Tech Issues
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RE: Batterries on concrete?
Ain't got a thing to do with either the battery case or concrete.
Its a temperature thing, the lower the temperature, the faster the battery self discharges. Placing a battery on wood or anything that insulates it from the ground, or concrete.
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gunny357
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07/24/10 06:00am |
Tech Issues
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RE: Propane genny problems
Demand regulator.
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gunny357
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07/24/10 04:23am |
Tech Issues
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RE: onan owner's help
I'm reasonably sure (but not positive) that the LP 2.5 Camp Power doesn't have a 'prime' function. It's a close cousin to my gas 2.8 Microlite, and it doesn't. Even if it's got one, I wonder what you'd hear except maybe a single click from a solenoid valve.
Jim, "Struggling hair farmer."
Rest easy.
You can be positive it doesn't. No need for a fuel pump or any priming on a LP genset.
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gunny357
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07/23/10 07:19pm |
Tech Issues
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RE: Where the heck can I find...
Out in my tool box I have about any you could want for about any size from 0 through 22.
An electric supply house should fix you right up.
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gunny357
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07/23/10 07:13pm |
Tech Issues
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RE: Propane genny problems
make sure the altitude selector is set correctly
make sure oil level is ok...
I know oil is good, recently changed it filled it with fresh synthetic , But this altitude selector, now you have my interest, I have seen nothing of this in the service manuals I have, in fact, I just searched them to be sure and no mention of it, do tell :-)
Useless information from someone trying to be helpful but not knowing what they are talking about.
Dry fueled engines do not have an altitude adjustment. Pressure regulator takes care of that.
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gunny357
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07/23/10 05:06pm |
Tech Issues
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RE: Propane genny problems
make sure the altitude selector is set correctly
make sure oil level is ok...
I know oil is good, recently changed it filled it with fresh synthetic , But this altitude selector, now you have my interest, I have seen nothing of this in the service manuals I have, in fact, I just searched them to be sure and no mention of it, do tell :-)
Useless information from someone trying to be helpful but not knowing what they are talking about.
Dry fueled engines do not have an altitude adjustment. Pressure regulator takes care of that.
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gunny357
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07/23/10 05:05pm |
Tech Issues
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RE: Help, genny won't start....urghhh
Start with the whole model/spec/serial number so we'll know exactly what you have.
4000 something isn't much to go on.
Some Onans will run without making voltage, most won't.
I ain't much good at guessing.
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gunny357
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07/22/10 08:22pm |
Tech Issues
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RE: Onan Generator Trouble
I'm going to venture a guess and say that someone tried to adjust the governor but got the carburetor instead, probably the idle screw in way too far.
Suggest that if you think you are capable of tackling this, get the service manual and have at it.
You will need means of measuring voltage and frequency. A load bank would also be nice.
Another word of advice, do NOT apply a load to this genset until it is running right.
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gunny357
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07/21/10 08:09pm |
Tech Issues
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RE: new diesel owner advised to add motor oil to diesel fuel
Do NOT do that!
Adds to air pollution,carbons up the combustion chambers and provides no benefit.
You were given bad advice.
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gunny357
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07/21/10 05:06pm |
Class A Motorhomes
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RE: The Haunted Onan Generator Problem! Help!!!
Never heard of Onan using Haunted as a model number/designator.
First I'd look to the summer/winter toggle lever.
A diesel with a summer/winter position? You are kidding, right?
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gunny357
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07/19/10 06:37pm |
Class A Motorhomes
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RE: How to remove oil pressure sensor on ISB?
1/2" open end wrench just above the threads works just fine.
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gunny357
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07/19/10 06:31pm |
Class A Motorhomes
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RE: Access to Generator Brushes
I would be very surprised if shutting down the generator under load caused damage to the regulator. The worst it can do is apply full battery power to the field winding as the regulator attempts to maintain the output voltage while the generator slows down.
My friend has the exact same genset in his Four Winds 28D and is having the identical problem. I measured the winding resistance for the field winding on his KY series 4 kW genset and it is about 30 ohms. With a full 12 VDC applied, I measured 400 mA into the field winding as expected.
If the regulator circuit is properly designed it will have an anti-parallel diode (sometimes called a free-wheeling diode) across the regulator output pins (cathode at J1-1 and anode at J1-10). What this does is prevent the back EMF of the field winding from driving the voltage too high if the current is interupted suddenly. The diode is normally reversed-biased (no current flow) during operations but if the current to the winding is interupted suddenly, e.g. a load dump or intermittent connection, the diode will become forward-biased and conduct the winding current, clamping the back EMF voltage at about 0.6 V.
I'm not sure whether Onan uses a linear circuit to supply the field winding current or whether it is pulse width modulation. I haven't reverse engineered their board yet. If a new board fixes his problem, he is going to give me his dead board for a post mortem and I will repair it so he has a spare handy. If there is no free-wheeling diode on the the field winding output, I will add one. It will need to have a reverse voltage rating of at least 40 volts and a forward current rating of about 1 amp or so. I would rather put it on the rotor itself, as the diode would help protect the slip rings and the brushes from arcing damage.
Good luck in your endeavors.
Let us know how it turns out.
You may want to contact Onan with your "fix". I'm sure they will be very interested/impressed and may even want to pay you for your idea.
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gunny357
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07/18/10 07:11am |
Tech Issues
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RE: onan genset 5000
What is the make/model/spec/serial number of the genset?
Most Onans will not run if they don't make power.
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gunny357
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07/17/10 08:20pm |
Class A Motorhomes
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RE: fast oil leak from generator
With a generator question, best to post the whole model/spec/serial number so we will know exactly what you have. A great number of different ones made through the years and a whole lot of difference between them.
A "fast" oil leak is pretty serious. Would look to a loose oil filter (if you have one), something jarred loose or broken.
Clean up the oil best you can, it will attract dirt and end up a bigger mess in short order.
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gunny357
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07/17/10 06:32am |
Tech Issues
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