<VV> Blower Bearing

[Sadek Charles H DLVA]

Listen to Lon-he is dead on.  You can go to the alternate bearing design if
that suits you, but remember, our ULTRA parts purveyors haven't bought a
blower bearing ... ever.  The cars were designed in the mid-late 50s, for
gosh' sake.  Almost 50 years since preliminary design and development,
intermittent use, and we are complaining about bearings failing?

I have been racing the same one for 7 years - a reasonably stressful
environment, methinks.  Survives over 7000 rpm routinely.

Remember, when new, the bearing and housing were very cheap as a unit.

I would ask, how easy is it to replace bearings/bushings in current "modern"
automobile parts; alternators, various pumps, etc.?  Cost?

Chuck S

-----Original Message-----
From: corvairs [mailto:lonwall@corvairunderground.com] 
 Subject: Re: <VV> Blower Bearing

Well,.............I must disagree with the assessment that the "stock 
design is deficient".  Certainly the 60-64 design uses a much smaller 
bearing than the 65-69, but the truth is, so long as you use a quality 
bearing in the first place, you should not have to mess with the bearing 
for years. This is a prime example of  a part that may perform 
flawlessly for 20 years, but upon failure, the owner finds the labor 
excessive and therefore blames the whole situation on "poor design".

An exact parallel are the guys who pop up with the suggestion that 
Corvair pushrod draintubes should be collapsible like VW's so that 
replacing those neoprene O rings would be much quicker - Of course we 
all know that the real fix is Viton O rings - not a redesign. Gee whiz 
engineering is fun but shouldn't be confused with necessity.

The irony is, if you you go to the double alternator bearing re-design 
you will be thankful that bearing replacement is easy - because you'll 
be doing it a lot more often, especially if you're not VERY careful what 
6302 bearings you purchase. This is because this is an "A" mover bearing 
in the rebuilding trade - As a result the market is flooded with VERY 
cheap third world imports that are of such pathetic design they don't 
belong in anything.

 Lon

www.corvairunderground.com

____________