FC genset fan replacement?

[Scott Forman]

I have made tremendous progress in lowering my FC generator noise
through re-insulating the compartment. While engine noise is greatly
reduced, though, the noise from the radiator fan is still very
pronounced, sounds like a turbo-prop at full throttle.

Has anyone had any luck with replacing the stock fan with something
quieter? Maybe a 12v replacement for the big 110v fan? I have seen
the modification that relocates the rad to the bottom of the tray and
uses a squirrel cage fan...hoping to not need that big a project.
Would like to just replace the fan.

Suggestions?

Scott Forman
82 FC35RB
Memphis

[randydupree2000]

--- In WanderlodgeForum@yahoogroups.com, "Scott Forman"
<sforman@...> wrote:john tried that before we moved his rad and put
the squirrel cage fan on it,he had problems keeping it cool witha
12vdc fan,but,mike h is working on his coach and has a baddass 12vdc
fan for it,maybe he will comment.
randy
>
> I have made tremendous progress in lowering my FC generator noise
> through re-insulating the compartment. While engine noise is
greatly
> reduced, though, the noise from the radiator fan is still very
> pronounced, sounds like a turbo-prop at full throttle.
>
> Has anyone had any luck with replacing the stock fan with
something
> quieter? Maybe a 12v replacement for the big 110v fan? I have
seen
> the modification that relocates the rad to the bottom of the tray
and
> uses a squirrel cage fan...hoping to not need that big a project.
> Would like to just replace the fan.
>
> Suggestions?
>
> Scott Forman
> 82 FC35RB
> Memphis
>

[Tom Warner]

Think seriously about keeping the present fan setup but us a thermal
switch to turn the motor on and off when the temperature of the
engine coolant gets to some preset temperature such as 200 degrees
farenheit. The horton fan on my 1982 uses something similar although
it is not adjustable. You can use a temperature control device
similar to the one used for your freeze heaters in the coach. The
generator box also needs composite sound proofing material staggered
so that it muffles the sound of the generator noise as it leaves the
compartment. Bluebird never used that technology when they designed
the cavity. There is some good reading at
http://www.soundown.com/ as to what is needed to properly muffle the
sounds and heat. The lead core composite foam is what is needed in
diesel engine sound deadening. You can buy the cheaper foam barrier
material from JC Whitney etc but you will not get the sound deadening
that you really need. This is definetly and area where you get what
you pay for.



Tom Warner
Vernon Center,NY
1982 FC35 (for sale http://tinyurl.com/lotbd )
1985 PT40


At 08:20 PM 4/17/2006, you wrote:
>I have made tremendous progress in lowering my FC generator noise
>through re-insulating the compartment. While engine noise is greatly
>reduced, though, the noise from the radiator fan is still very
>pronounced, sounds like a turbo-prop at full throttle.
>
>Has anyone had any luck with replacing the stock fan with something
>quieter? Maybe a 12v replacement for the big 110v fan? I have seen
>the modification that relocates the rad to the bottom of the tray and
>uses a squirrel cage fan...hoping to not need that big a project.
>Would like to just replace the fan.
>
>Suggestions?
>
>Scott Forman
>82 FC35RB
>Memphis