Some time ago I installed my EU2000i in the generator compartment of my camper.
Well, it was quiet (much much quieter than the Onan it replaced)... but there was still some vibration and noise and I knew it could be better. This past weekend I sprayed the interior of the compartment with rubberized undercoating and then re-mounted the generator on 2 additional sets of anti-vibration mounts. The result was an amazing 11dB sound pressure reduction inside the camper.
Below are some pics that show what I did.
Cheers
-Mark
I made a new mounting board from a piece of 3/4" marine plywood. This board is fastened underneath the camper on damping mounts and bolts through the original Onan mounting holes.
The plywood is sandwiched in 4 places between a pair of 1-3/4" diameter neoprene (40 shore A) vibration-damping mounts.
I then installed three 1-1/2" damping mounts into the top side of the plywood board.
The generator is mounted to another piece of plywood that is suspended by the three damping mounts and the entire assembly basically now 'floats' inside the compartment. Very little (if any) vibration is transmitted to the camper.
* This post was
edited 05/26/10 06:09pm by msiminoff *
That' very nice. I see you also went LPG with the conversion. That reg is the dual purpose one right?? Do you still use your gas system as a backup if you were not able to use LPG? That was a pretty cool mod also. I have a 2500 and the thing IS kinda loud. I was at the local Honda dealer sniffing out the same generator...what a nice unit. Sales guy fired it up and we had a conversation while it purred away. Some day perhaps. Thanks for the motivation!
I saw in the new issue of dirt bike magazine where a top rider had put some sort of a snorkel on top of his silencer. It was said to bring the noise down to almost nothing. I am considering trying something like that on my Honda 2000.
wrote: I see you also went LPG with the conversion. That reg is the dual purpose one right?? Do you still use your gas system as a backup if you were not able to use LPG?
The LPG conversion kit is from Central Maine Diesel. It can run on gasoline, propane or natural gas. I do always keep the gas tank topped-up and then just use whichever fuel is the most plentiful at the time. I also made a hose so I can plug-in to the BBQ fitting at home in case I should ever need backup power (to date I have not, but the Boy Scout in me says 'be prepared').
wrote: I saw in the new issue of dirt bike magazine where a top rider had put some sort of a snorkel on top of his silencer. It was said to bring the noise down to almost nothing. I am considering trying something like that on my Honda 2000.
Sounds like you're talking about the db Snorkel? Those are cool but are only for 2-stroke engines, not 4-strokes like the Honda genny's have... not that it couldn't be done, but it would take quite a bit of effort and then only work in a limited RPM range. Good for Onan gen's but not Honda inverter type.
Anyway, my exhaust exits up above the roofline so there is very little exhaust noise at all.
You, Sir, never fail to amaze me I bow to your Epicness!
Follow me as I full-time the Redneck Way at The Journey of the Redneck Express CBChannel 17Redneck Express '1992Dodge W-250 "Dually" Power Wagon - Club Cab Long Bed 4x4 V8 5.9L gashog w/4.10 Geared axles '1974KIT Kamper 1106 - 11' Slide-in
JoeChiOhki wrote: You, Sir, never fail to amaze me I bow to your Epicness!
Ditto - that's awesome. When are you coming through Colorado so I can make your trip worth it How much you figure all of the parts cost you if you went out and bought them all to install?
I was going to go the same root as you did
but then I decided to stick with my onan and wrap it in this product B-Quiet Ultimate
I left all the air flow openings open and it works well.
Then I lined the compartment with this product Hliner. It works awesome!!
No vibration noise and the sound has dropped by more than half.
I would suggest lining your comparment with this.
Quote: How much you figure all of the parts cost you if you went out and bought them all to install?
Thank you for the kind words!
The "parts" to do this project were super cheap... though the labor certainly wouldn't be
I got all the damping mounts from McMaster-Carr Co. I had the plywood lying around from other projects, the rubberized paint came from the FLAPS and the exhaust riser is made from a length of EMT (+ an elbow).
All-told I probably spent $50-60.
Of course that doesn't include the ($$$!) Honda, but I sold the piece of junk Onan 2500 and turned a healthy profit at the end of the day.
* This post was
edited 05/27/10 08:31pm by an administrator/moderator *
Offline
I bow to your Epicness!
How much you figure all of the parts cost you if you went out and bought them all to install?
