It's an Onan Emerald Plus 4500 generator. It comes with the stock muffler. Is there anyway to make it more quiet? It's on a 1990 Ford Jamboree. Generator has only 450 hours on it. Runs great except for the noise.
2006-09-04 13:44:17 · 11 answers · asked by rosebud 2 in Cars & Transportation ➔ Maintenance & Repairs
Pour water on it.
2006-09-04 13:49:33 · answer #1 · answered by da_hammerhead 6 · 0⤊ 1⤋
Is it possible? Yes. However there are some things you might want to consider. 1. Water is a great sound conductor. You are on a pontoon boat (hollow metal cylinders). Not sure how much quieter it will be. 2. The exhaust will bubble and froth the water = noise. 3. You will be introducing heat and carbon monoxide directly into the water, two things passing coast guard, park rangers, or EPA people will not like. Not to mention the fact that it is actually bad for the aquatic life. 4. You will be back-pressuring the exhaust which could shut-down or otherwise harm the generator. 5. The 'pipe' you use is going to get extremely hot (see #3), this would be bad for anything touching it, including the boat and people. On the other hand, I would suggest putting an actual muffler on it. I am thinking of somthing like an ATV or other type of small engine muffler. I'm sure you could get some suggestions from a lawn & garden shop when compared to similar horsepower-sized engines. All-in-all, your idea sounds like one of those "looks good on paper" deals. You would probably create more problems than it's worth, especially with the availibility of aftermarket exhaust components. Happy camping!
2016-03-17 01:33:04 · answer #2 · answered by ? 4 · 0⤊ 0⤋
If the noise is exhaust, and not coming from leaks in the exhaust system, try piping the exhaust though a fairly large diameter glass pack, like a "cherry bomb" muffler. This type of muffler does not do much as a single unit on a car, but they will take out resonance in th exhaust pipe. I would try about a 2 inch diameter glass pack with several feet of tail pipe. Use good quality pipe, as cheap thin wall material will tend to "ring". Make sure all pipe joints are sealed 100%. Any leak will allow noise to escape.
If it is engine noise, or fan noise, be careful not to restrict the air flow to the unit. RV generators run hot anyway, and you will burn up the engine or alternator if it can not get enough cooling air. You are pretty safe making additions to the exhaust system if you use a free flowing design. Do not use small diameter pipe, or use excessive bends.
Hope this helps.
2006-09-07 07:23:45 · answer #3 · answered by shfincter S 2 · 1⤊ 0⤋
Onan Generator Muffler
2016-11-09 19:27:31 · answer #4 · answered by ? 4 · 0⤊ 0⤋
Insulation but don't cut down on the Ventilation ( Onan does have quieter mufflers go to their web site )
2006-09-04 13:46:25 · answer #5 · answered by Anonymous · 1⤊ 0⤋
I would try insulating the generator box.you may actually be hearing engine noise,not exhaust.if you do insulate the box,you may also have to rig a fan for ventilation (to cool engine).if it is exhaust noise,try a longer heavier guage exhaust pipe with a larger muffler-heavy guage pipe will deaden more noise than cheap thinwall pipe-I have actually used galvanised plumbing pipe,with success.
2006-09-04 13:52:26 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Check the exhust pipe gaskets. And dont forget, its a two cylinder engine. Also checkthat the pipe(s) are not touching any part of your RV and causing rattling noises.
2006-09-05 07:25:30 · answer #7 · answered by RANDLE W 4 · 0⤊ 0⤋
I would run the muffler & or Tailpipe all the way out the rear !
2006-09-04 14:05:16 · answer #8 · answered by Anonymous · 0⤊ 0⤋
put sound dampening foam or fiberglass around the walls around the generator
2006-09-04 13:46:46 · answer #9 · answered by DaFinger 4 · 0⤊ 0⤋
This is a hard one. There is a lil button on it... turn to OFF. And enjoy camping the old way.
2006-09-04 13:49:59 · answer #10 · answered by ravin_lunatic 6 · 0⤊ 1⤋