| Author | Message | ||
| captain ron (Captain_ron)
Rating: N/A |
I plan on putting my generator in the compartment where my bus ac came out of. first off the one I have now is a 3500 air cooled unit, I will replace it eventualy with a water cooled system gas or deisel. so now I need to put my present one in there and be able to keep it cool and as quiet as possible. will the bottom vent and side vent be enough air circulation to keep it cool both sitting and in motion? for those of you not familiar with a 4905 the floor of that compartment and door for that compartment are completly made of a grate type material. as for exauhst I need to have a new manifold fabricated to fasten to the rest of the exauhst system. will running the exaust a longer distance keep it reasonably quiet for the generator I have? also will modifying the exauhst hurt the performance? I would like to be able to run my genset with out anoying any neighbors too bad. as I will be in some stuations where I'll be stacked up with some realy nice entertainer coaches that have the best of everything and don't want to hear my genset. I also plan on putting eyelets up the side of the bus to put an extention exauhst up to the top of the bus for rallies and places where I might put my exaust in harms way for other people. | ||
| James Maxwell (Jmaxwell)
Rating: N/A |
Yes, the compartment is ideal with plenty of ventilation. You might consider baffling the door part. I have seen them used that way. The baffling I have seen was sound deadening material bonded to alum. sheet that extended about 2/3 way across the opening, set back about 1 inch, with 3 such staggered baffles, like a maze for the air to travel in. The baffles were assembled together to fit the entire opening and that assy. was anchored to the door. Took up about 4" of depth, but was pretty effective. Now, most use that compartment for propane tanks, so where are yours going? My exhaust is extended 12' horizontally under the bays with no ill effect on the engine. I did expand it from 1 1/4 to 1 1/2. | ||
| captain ron (Captain_ron)
Rating: N/A |
My propane is in right rear bay where tag axle was removed. | ||
| Geoff (Geoff)
Rating: N/A |
There is NO getting an air cooled 3500 watt generator quiet! I wouldn't waste my time even trying. You can find a nice used Onan RV gas generator pretty cheap, and that will keep your neighbors from hating you. Geoff '82 RTS CA | ||
| TWODOGS (Twodogs)
Rating: N/A |
think about a car muffler | ||
| doctor al Rating: N/A |
Or maybe the stock mufflers that were on the harley before the straight pipes:-) | ||
| DrDave Rating: N/A |
Find a muffler for an Onan RV generator such as used on the 6.5 kw versions or up. I used one on my kubota diesel generator engine and it knocked out "all" exhaust noise except for a whooshing sound of exhaust escaping which you can't really hear. The other main noise is the air intake noise on gas and diesels. Very noisey. I will address that later but a larger remote aircleaner will fix that. The last noise is the mechanical noises from the engine and hard parts. This is where a good compartment design will come into play. Vibration is easy, just really ingenious isolators for that part. Lots-o-rubber. If you prefer LP or Gas generators the Onan Microlite 4kw or the bigger units can be found all over and they are relatively quiet and can be placed just about anywhere. Even inside a bay if you cut the air holes in the floor. | ||
| captain ron (Captain_ron)
Rating: N/A |
Geoff if you wanna give me the money for one I'll go that route and you can have your name or buisiness name in small letters on the side of my bus  , If not I'm gonna have to at least try to get it some what quiet. I may try the Harley exauhst thing As I said in original post I plan on a better, bigger, and quieter genset but I'm already doing more in a month than most of you have done since you've had your bus. And it's breaking the bank. and wearing me out. I wouldn't be this far if it weren't for people like JJ and My friend with the cabinet shop. I think LP is out of the question as my tank is not big enough for one. I'll probably go with a deisel or a honda gas water cooled unit. | ||
| Jim Bob Rating: N/A |
I have an Onan 6.5 Emerald gasoline RV unit. Runs at 1800 RPM. Way quieter than what you are using now. (I had an air cooled the first year.) I have the stock muffler and the optional resonater/spark arrester. I added a Harley muffler right at the end and it removed 90 % of the remaining noise. It's a straight through design and larger at 1.5" I believe so no restriction. But I had to weld a piece of pipe (EMT conduit) on the outlet so that I could install an extension for going up the side when parked. I fabricated that out of EMT conduit which works well. I made it in three sections (one 90 sweep elbow & 2 straight pieces) and used the EMT connectors to join the sections so I could break it down to fit in the bay. (When I build another one, I will take this pipe to a muffler shop & have one end swaged out so it slide fits over the other as I get a little leakage & stain around the connectors.) As for hanging the up-pipe, I took a 12" piece of 2" aluminum channel & attached that to the upper section with an exhaust "U" clamp so it's at 90 degrees. The clamp bolts through one "leg" and the other hooks on my rain gutter. I can send you pics of this if you want. Jim-Bob | ||
| captain ron (Captain_ron)
Rating: N/A |
Jim Bob please do send pictures sounds like a nice set up. | ||
| DrDave Rating: N/A |
I bought my generator and then bought the bus to install it in. Like most of my conversion stuff, Stockpiled the good stuff over 4 years of collecting. Of course I continued to live in my RTS all the time. Decided to go with an MCI last year when the prices came down. Now I only have 3 buses... Had 6 ! DrDave... | ||
| John Jewett (Jayjay)
Rating: N/A |
Jim Bob, try using a pipe union on your exhaust instead of beating around on a slip joint. Want a "really quiet" muffler? The worlds champ genset muffler is from a Honda Goldwing. Yeah it's kinda' pricey new, and the only thing quieter is the biggie from a Lexus at $360.00. ...JJ | ||
| CoryDaneRTS Rating: N/A |
DrDave Where did you keep all 6 buses? You must have the bug really bad, most of us (I think) only have one bus. cd | ||
| Stephen Fessenden (Sffess)
Rating: N/A |
My Kohler generator uses 2 Chevy mufflers to quiet the exhaust. | ||
| DrDave Rating: N/A |
Cd, I was on commercially zoned C3 property most of the time in two different places. I am back in a house now on private property and only keep two of them here, Both titled as motorhomes. The last orphan RTS is still at my old hiding place until I can find a place to hide it and the cash to have it moved. I hope to get down to one at some point but not holding my breath. They are sometimes easier to aquire than get rid of. A buddy of mine has 3 MC8's, MC7, 102A3 and a Buffalo. Lots of carcass's and parts. But he's hiding back in the woods. Florida is a haven to old buses looking for hiding places. DrDave... | ||
| Frank Allen Rating: N/A |
You dont say what kind of gen set, you sure need one designed for running inside a compartment, other wise you wont be able to keep it cool, will be a fire hasard, i found out the hard way that gen sets are not the place to save money. get a onan marquee then you can run it closed up and it is as quiet as any out there, worth every dime it costs Frank Allen 4106 | ||
| R.C.Bishop
Rating: N/A |
Steve....what comments might you have about the use of two chevy mufflers?? I also have two, but of mixed breed, including a glaspak (recommended to me) but it is still just to loud. Nice sound, but not quiet.... The Goldwing muffler sounds good...I had an Aspencade and it WAS quiet. RCB | ||
| Stephen Fessenden (Sffess)
Rating: N/A |
I have a 12.5 KW Kohler genset with a Perkins 4108 diesel engine turning 1800 RPM. the first muffler is about four feet of hose and pipe from the engine (water cooled exhaust manifold, marine unit). The second muffler is about 7 to 8 feet behind the first. I THINK they are GM type mufflers. They may be a Kohler item. I get more noise from the generator compartment than from the exhaust. I thought a glaspak was to get a mellow sound, not quiet exaust. | ||
| R.C.Bishop
Rating: N/A |
Exactly what happened ( re the glaspak)... Thanx for the info...the way my unit is mounted, I do not have that much available space for pipe runs. Thanx for the info. RCB |