Generator vibration
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10-04-2008, 14:38
Post: #11
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Generator vibration
Hi Scott
My suggestion is to look at the engine mounts and consider replacing them.
I had an SP36 that vibrated badly and replacing the mounts helped considerably.
Fred & Jeanne Hulse
Morristown Arizona 1997 Wanderlodge WLWB41 |
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10-04-2008, 14:40
Post: #12
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Generator vibration
Done that
Scott --- In WanderlodgeForum@yahoogroups.com, "Fred Hulse" wrote: > > Hi Scott > My suggestion is to look at the engine mounts and consider replacing them. > I had an SP36 that vibrated badly and replacing the mounts helped considerably. > > Fred & Jeanne Hulse > Morristown Arizona > 1997 Wanderlodge WLWB41 > |
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10-04-2008, 14:54
Post: #13
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Generator vibration
Scott,
I don't have anything to compare it to, but from your saying, you have way more vibration than I experience on mine. If you come up to Shanes rally we could compare? Tom Sorrentino 1987 PT38 Yanmar/Kohler Generator Bedford Hills, NY --- In WanderlodgeForum@yahoogroups.com, "Scott Forman" <scottforman75@...> wrote: > > Done that > > Scott > > --- In WanderlodgeForum@yahoogroups.com, "Fred Hulse" > wrote: > > > > Hi Scott > > My suggestion is to look at the engine mounts and consider replacing > them. > > I had an SP36 that vibrated badly and replacing the mounts helped > considerably. > > > > Fred & Jeanne Hulse > > Morristown Arizona > > 1997 Wanderlodge WLWB41 > > > |
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10-05-2008, 01:42
Post: #14
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Generator vibration
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10-05-2008, 01:58
Post: #15
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Generator vibration
We had the same Yanmare in our Newell. Replaced the bushings, but still sounded rough especially when shutting down.
BradBarton00LXiDFW bbartonwx@... To: WanderlodgeForum@yahoogroups.com From: tomsorrentino@... Date: Sun, 5 Oct 2008 02:54:28 +0000 Subject: [WanderlodgeForum] Re: Generator Vibration
Scott, I don't have anything to compare it to, but from your saying, you have way more vibration than I experience on mine. If you come up to Shanes rally we could compare? Tom Sorrentino 1987 PT38 Yanmar/Kohler Generator Bedford Hills, NY --- In "WanderlodgeForum@yahoogroups.com", "Scott Forman" <scottforman75@<WBR>...> wrote: > > Done that > > Scott > > --- In "WanderlodgeForum@yahoogroups.com", "Fred Hulse" > wrote: > > > > Hi Scott > > My suggestion is to look at the engine mounts and consider replacing > them. > > I had an SP36 that vibrated badly and replacing the mounts helped > considerably. > > > > Fred & Jeanne Hulse > > Morristown Arizona > > 1997 Wanderlodge WLWB41 > > > Get more out of the Web. Learn 10 hidden secrets of Windows Live. Learn Now |
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10-05-2008, 03:40
Post: #16
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Generator vibration
replacing mounts to 'new stock' as Fred writes may be all you can do.
softer mounts often isnt better. and non stock can prove issues at the exhaust. I wonder if stock vibration was ever an issue or if your vibration is a degenerative / failure result? Often vibration is a sign of a broken mount or a engine idle/run cadence problem. this is a good place to view the results of members repairs to that prob. The 94pt powertec has an electric fan. my fan makes more vibration than the engine. as it starts up I can see that the blades are unbalanced. the other area of probable vibration is the union to the exhaust. some setups may have vibration at the coupling of the 'engine to genhead' . the coupling in many has little variable of alignment and in later years the engines were fitted with cone shape crank shafts. I have seen the bolts between the genhead and the engine (LightTowers) snap due to alignment issues at the genhead/engine union. Vibration is one of those energies where control of of must consider newtons "for every action " law. Greg94Ca --- In WanderlodgeForum@yahoogroups.com, "Fred Hulse" < fhulse@...> wrote: > > Hi Scott > My suggestion is to look at the engine mounts and consider replacing them. > I had an SP36 that vibrated badly and replacing the mounts helped considerably. > > Fred & Jeanne Hulse > Morristown Arizona > 1997 Wanderlodge WLWB41 > |
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10-05-2008, 07:31
Post: #17
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Generator vibration
Greg,
Remember Doug & Terri at last Q rally more or less in front of you guys? He let the vibration go too long and had to get a new motor. Took out the bearings. They have since sold the coach. Very nice unit - light blue.
See you at Q this Jan.
Dick Hayden - '87 PT 38 - Lake Stevens, WA
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10-05-2008, 08:06
Post: #18
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Generator vibration
SUCCESS!
I suspected that the fan might be my big vibration source, and after disconnecting power to it and running the motor I was right. The vertical radiator and fan on the PT's are designed as a sub- assembly that comes out in one piece. This subframe attaches to the coach at three places...two under the radiator and one furter in towards the centerline. The two mounts under the radiator are rubber- isolated mounts, and even after all these years they are still doing a good job of minimizing vibration transfer. The culprit, though, was the third point. There was a plain metal pin attaching the subframe to a vertical frame member that is attached to the main left side frame rail. Vibration from the fan was passing right through that pin, up the vertical member, and into the main frame. Since the steering linkage passes through this frame rail, it was allowing transfer into the steering column and into my hands on the wheel. To address this problem, I used a floor jack to support the subframe and removed the metal pin. In its place, I inserted a bolt inside a length of small rubber hose. With the hose acting as an isolator, the amount of vibration transferred into the frame is greatly reduced. I am very happy with the results. Score one for shade tree engineering. Scott Forman 86 PT38 Shakin a little less in Memphis --- In WanderlodgeForum@yahoogroups.com, Hisham Amaral > > Scott > > Mount dampening and isolation in our case is experimentally done, We do not have the tools needed to do any computer designs to get the best dampening results. Therefor we have to experiment with different mounts to get the desired result. My advise is to play with different durameter rubber mounts that will get you what you want in dampening the vibration you are getting from your Gen set. I would call (BB) CCW Engineering to see if they have any off the self mounts that can replace your existing mounts or would they suggest a vendor that can work with you to improve your condition. > I retired from automotive engineering 2 years ago and do not have any contacts in that area > I will make a few calls to my old friends at Chrysler to see if we can get any additional information that can lead you to an acceptable results. > Will talk again soon, and good luck, > > Hisham Amaral > 97 WLWB Michigan > > --- On Sat, 10/4/08, Scott Forman <scottforman75@...> wrote: > > From: Scott Forman <scottforman75@...> > Subject: [WanderlodgeForum] Generator Vibration > To: WanderlodgeForum@yahoogroups.com > Date: Saturday, October 4, 2008, 8:11 PM > > > > > > > Does anyone have any good tricks for reducing vibration from the > Yanmar/Kohler generator? > > Scott Forman > 86 PT38 > Memphis > |
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10-05-2008, 11:13
Post: #19
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Generator vibration
Scott,
Nice bit of work.
Congratulations!!
Fred & Jeanne Hulse
Morristown Arizona 1997 Wanderlodge WLWB41 |
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10-05-2008, 13:10
Post: #20
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Generator vibration
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