| Author | Message | ||
| chris Rating: N/A |
who sells them? thanx chris | ||
| Jon W. Rating: N/A |
Goodyear. Also used as belt tensioners on some Prevost coaches. Prevost part number 950208. | ||
| chris Rating: N/A |
I got mine from McMaster Carr they have numerous sizes and styles | ||
| David Hartley (Drdave)
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http://www.mcmaster.com/nav/enter.asp?pagenum=1224 This is what you are looking for? | ||
| David Hartley (Drdave)
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Oh. I also found the braided stainless hose used for generator exhaust on page 205 Dave.... | ||
| morgan Clough (Mclough777)
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i may be mistaken but those dont look AIRBAGS. i have airbags also on mine and need to find replacements. | ||
| David Hartley (Drdave)
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There are other styles out there. This may not be the firestone type but does the same job?  | ||
| FAST FRED Rating: N/A |
The fancy method of noisemaker installs on big buck Gov boats is dual isolation. This cuts down the shake and vibration to a really low level. Weigh the engine & gen head , and build a rectangular frame to hold the std mounts. IN the corners of the frame insert 10% of the noisemaker package weight in EACH corner. Yes the FRAME will weigh about 40%+ of the noisemaker weight when finished. Then use another set of mounts (chosen for the combined weight) between the new frame and the bus. Aparently this breaks up most resonances, very flexable hookup for wiring , fuel & exhaust required. FAST FRED | ||
| Jim Bob Rating: N/A |
When thinking about air bag mounts for your genset, remember that air bags provide NO lateral stability. You will need to design some system to restrain the genset for sideways & forward & aft movement, like when you stop & go. | ||
| Marc Bourget Rating: N/A |
Elaborating on FF's point, for best results, the second set should be rotated 45 deg to the first (two sets of four superimposed over eachother will look like one set of 8. Except I'd space the bottom set out wider than the top like a pyramid or tetrahedron for you "math" folks) Either set up will allow lots more movement than the stock set-up, which usually isn't so concerned about sound conduction. Keep this in mind when you're hooking up wires, fuel supply or installing a flexible exhaust connection. For one idea as to range of freedom, the DD S-50 manufacturers installation handbook tells bus mfgs, selecting motor mounts, to allow for 7" lateral movement in the head region. Sometimes it can be alot, especially with "shaky" 4 bangers! | ||
| David Hartley (Drdave)
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Ouch, 8 ? Nice idea but I think that spending nearly $700 on a little vibration is extreme. Most of "U" Guys haven't figured out a quiet muffler yet. I did but got laughed at and told by several people that what I did wouldn't work. Oh Well. So a little hummmm in the chassis doesn't bother me so much as a loud generator tailpipe. In my generator location I have about 1/2 inch of room so adding big goofy isolators is not an option in my MC9's old a/c bay. It's been one of those days !   | ||
| Marc Bourget Rating: N/A |
Dr. Dave Read FF's post again, he mentions "std mounts" he doesnt' advocate airbags, and I wouldn't either. Airbags have problems doing their job if sufficient restrictions are built into the airbag installation to limit lateral movement which, if not controlled, leads to tearing of the airbags. There's other ways, even better, a step further than I mention above. Wasn't my "genius" I got the idea during a tour of NASA Ames, Mountain View, Calif. But I "must" be politically correct and not offend any SMMF's feelings or ensitivities. Contact me off BB, or supply your email addy off the RTS BB and and I'll explain further. | ||
| Richard Bowyer (Drivingmisslazy)
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DrDave is right on the mark in my opinion. My experience indicates that the best mount is to mount the genset SOLIDLY to the frame of the bus to eliminate vibration. The mass of the overall frame will absorb/dampen any vibration of the diesel engine. It is then a matter of soundproofing the enclosure and making sure you have a good quiet muffler as DrDave recommends. Richard | ||
| Marc Bourget Rating: N/A |
Richard, I agree that your approach will achieve a relatively quiet "sound levels" but my aim and desire is to be able to lie on the flexsteel couch/bed above the genset and not be able to tell if it's running or not. Bolting the genset solidly to the chassis will cause (relatively) alot of vibration conduction through the chassis. My sound goal was generated by Dick Wright's efforts. But, placing a hand against the coach will still allow you detect that it's running. Nothing wrong with your approach, but I, like lots of folks "our age" am a light sleeper and I have to get awfully tired to sleep through a running genset, so it's just a matter of preference. I seem to tolerate "outside noises" pretty well while sleeping. "Inside noises" are an entirely different matter. The refrig compressor cycling or the clothes dryer stopping (alarm alert off) are often enough to wake me. Kinda like the Myrtlewood in DML. Not necessary but Oh!, so nice!!! | ||
| Richard Bowyer (Drivingmisslazy)
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Well maybe I am just lucky. Janet and I both prefer a little background noise and we typically run an exhaust fan or some other device to create a little white noise. The oxygen generator I just got to use at night does a great job of providing this while giving me some much needed oxygen. LOL Truthfully, I do not remember any vibration from the genset in DML. In my experience building lots of different types of rotating equipment I found that solidly mounting a unit generally did a much better job than vibration isolation pads in eliminating vibration. Especially when a relative smaller unit was fastened to a relatively larger unit. Richard | ||
| Marc Bourget Rating: N/A |
Richard My engineering Professor friend who rode with me in the homebuilt back to Oshkosh etc., is a specialist in vibration and noise. Toyota consulted with him and his engineer son on the Fremont, Calif assembly line. As a result, I look at it with a "sharper pencil" than most. I think you're correct. It's just one of those "things" that I will chose to waste my time seeking a perfect solution to something for which no perfect solution exists. Still think I can get to a point where I can take my nap "undisturbed", but it's obviously a "do it your own way" kinda thing. A matter of personal choice, like color of interior. Onward and Upward |