Re: [DML] bullet proof a/c blower

[Horseman of PA <the_horseman_pa@xxxx>]

Humidity and poor desing relate to alot of defective
parts in all cars.with excessive humity things tend to
rust faster, and with the blower in a standard postion
as opposed to an inverted one this will allow
condensation from humitidy to collect, what can you do
to stop it? I've found putting high temp grease on all
bearings seems to limit rust. but anytime you have
metal against metal theres friction, friction equals
heat which intern attracts mosture. rust is the
offspring of this combination. what can you do? well
other then submerging your vechicle in either silica
or a giant hermetically seal bubble. you gotta live
with it. water repellent grease can do miracles. I
dont know if I would fill the holes with silicone,
what you coulde be causeing is excessive heat build up
which could warp shafts or bearings causeing sqeaks.

Wayne
--- Walter <Whalt@xxxx> wrote:
> I finally had to replace the a/c blower in my D. I
> wanted to find something
> with a larger/faster motor that turned in the proper
> direction, but couldn't
> find one. There is a style of motor that is larger
> (and I suppose faster)
> that fits perfectly, but it spins the wrong
> direction. I could fix this by
> reversing the polarity, but I want to keep
> everything on the car Negative
> Ground. I suppose it would be feasible to rearrange
> the electricals inside
> the motor, but it would be a lot of work. I might
> try that someday.
> 
> For now I put a new PJ Grady motor on there, and it
> works great. But I
> didn't want this new motor to go bad for the same
> reason that the old one
> did. The OEM was noisy ever since I had the car
> (with 8600 miles on it).
> It since got worse (spraying lithium oil in there
> helped some) and
> eventually developed dead spots. I would have to
> pull the rubber hose
> loose, stick my finger in there and give it a spin. 
> The last time I tried
> that it ate my finger nail.
> 
> Why the OEM blower went bad is because condensate
> from the a/c seeped into
> the motor and rotted everything out. It rusted the
> bearings and corroded
> the brushes. So with the new blower, I sealed all
> the seams on top with
> silicone caulk. It is okay to seal these because
> the blower is cooled from
> air circulating through a vent hole on the top under
> the squirrel cage where
> water can't seep in. On most other cars the a/c
> blower is either mounted
> sideways or upside down, so gravity won't allow
> water to puddle around the
> rear bearing.
> 
> Do any of you think this was a good idea? Does
> water actually puddle on top
> of the blower or is this just a general humitity
> problem that can't be
> avoided?
> 
> Walt Tampa, FL
> 
> 
> 
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