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Couple Blower Bearing Install Questions
Posted by: Mark M ()
Date: May 25, 2011 07:46PM

Put the engine cover in the oven at work and heated it to about 160 degrees. Bearing went in the freezer and after it was cold, it slipped right into the cover about 1/2", with a nice snug fit,then it stopped. Used the hydraulic press to set it in the rest of the way and got it adjusted to 64 spec.

I replaced the bearing that came in my car with a spare, but it gave out and grease woudl not help. So, this is the third bearing to go in. If I had thought about it, I would have added a set screw as Steve Goodman suggests, but I didn't have the patience. Should I expect any trouble with this bearing not staying put because it is the third one put into this housing? I really don't want to have to do this again.

See photo: Bearing position is perfectly on spec, but the shaft is still about 1/8" short of flush with the bottom of the hole. Not a problem, right?

Mark M
Project: 64 Spyder Convertible
1st Vair: 65 Corsa 140
St. Louis, MO
Show Me Corvair Club &
CORSA member

"If it's not broken, you're not driving it hard enough"

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Re: Couple Blower Bearing Install Questions
Posted by: steve c goodman ()
Date: May 25, 2011 08:24PM

Mark M Wrote:
-------------------------------------------------------
If I had
> thought about it, I would have added a set screw
> as Steve Goodman suggests, but I didn't have the
> patience. Should I expect any trouble with this
> bearing not staying put because it is the third
> one put into this housing? I really don't want to
> have to do this again.

Steve replies: One never knows how much of the aluminum has been removed by the past replacements, it is probably a crap shoot. I see lots of the bearings that stay in place fine, my use of set screws is only a failsafe type measure to ensure I don't see the car again for free.

It does take patience however to work on this old iron.

best wishes, Steve
Rear Engine Spec. Inc. Golden, Colo.

1962 spyder 3.0L turbo---1965 Crown V8
1967 monza 110/4---1968 monza 110/4
1971 amante gt 110/4
CORSA/RMC/PPCC/V8 Registry

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Re: Couple Blower Bearing Install Questions
Posted by: Mark M ()
Date: May 26, 2011 09:08AM

Steve,

I sent you a PM, if you have time to respond.

Thanks,
Mark

Mark M
Project: 64 Spyder Convertible
1st Vair: 65 Corsa 140
St. Louis, MO
Show Me Corvair Club &
CORSA member

"If it's not broken, you're not driving it hard enough"

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Re: Couple Blower Bearing Install Questions
Posted by: corventure Dave ()
Date: May 26, 2011 10:49AM

I have installed a lot of new fan bearings and remember the same problem you mention. I solved this some 28 years ago by putting a couple small drops of locktight on the bearing shaft going into the aluminum top cover. Never had a problem removing them years later and never had a bearing slip up out of the cover.
Steve is right about the aluminum and the interferaence fit of the top covers being a crap shoot.



Edited 1 time(s). Last edit at 05/26/2011 10:53AM by corventure Dave.

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