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Generator and insulation

May 25, 2010, 11:23:48 am

We have a 1999 U320 with a Powertech 10K generator.  Has anyone re-insulated their generator compartment, replaced their generator or done any mods to help quiet the beast while running? 


Ours is in good condition, serviced regularly, etc., but compared to newer generators on newer coaches, you definitely know which one is making the noise.  I understand that comparing ours to newer coaches/generators, is kind of an apples & oranges thing because of new technology & such, I was wondering if anyone has been successful in lowering the db's or, have they replaced the generator with something newer & more quiet?

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Re: Generator and insulation

Reply #1 – May 25, 2010, 11:38:20 am

Bill, call Power Tech and see if you can retrofit it to a quite box,also check and see if you can get the air bag motor mounts.
 Bill W.

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Re: Generator and insulation

Reply #2 – May 25, 2010, 11:57:48 am

If non of that works, Iso mounts (bolts) from NAPA may help.

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Re: Generator and insulation

Reply #3 – May 25, 2010, 12:26:45 pm

It is the quiet box that makes it quieter. I noticed the difference when I got my first unit with one.

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Reply #4 – May 25, 2010, 01:13:03 pm

I have the same PT10 and I do not notice that it is any noisier than any other genny.  It is in a GV so it is mounted in a bay on the left side.  I do notice that it WHISTLES, apparently as air is drawn into the bay there is some restriction, open the bay door and it goes away. My control panel is quite different though, I guess since it is an earlier model they made some changes later.

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Re: Generator and insulation

Reply #5 – May 26, 2010, 09:47:28 am

Bill,

I just had FT replace the insulation in mine.  The original insulation was breaking down and filling the air filter and generator cooling system with black dust.  It cost $1300, $500 of which was for the material.  It took an expert a day and a half, and required a fork lift.  Anne doesn't think it's much quieter, but the noise is not objectionable.

BTW, FT recommends that the control box be relocated to the front streetside bay.  It's much cooler, and eliminates risk of vibration damage.

Regards,

Brett

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Re: Generator and insulation

Reply #6 – May 27, 2010, 09:41:58 am

Thanks for the advice, y'all.  Am getting the impression that the re-insulating won't make that much of a difference other than replacing whats damaged - old...
Amos, we'll be in Nac in late June or July for annual maintenance stuff - I'll check on moving the control box and see what that entails...  Sounds like a good idea.  Maybe they shoulda done that when manufactured...


Ain't hindsight wonderful? 

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