<VV> VV - Corvair header & fan caveats and tutorial

[Charlie]

Hi Andy,

 

My fan is not loose on the hub (the circled part in the pix, right?) and the
squeal was from the motor shaft, quieted by a little 90 wt oil, but for how
long ? That is the next question)

 

I removed the fan from the motor shaft and it has no play at all (it doesn't
even feel like it is possible to pull it apart, but from what I've read,
there are two pieces, the hub and the fan "squirrel cage"?

 

Thanks for the caveats about using aluminum heater ducts ~ I was going to
use them, but haven't cut them up, so back to Home Depot for a refund!

 

I'm also not even replacing the 3" duct from the right side of the engine
cover, since that apparently steals valuable cooling air from #5 cylinder,
causing premature failure of its valve seats?

 

Thanks for the tutorial!

Charlie

 

From: Kinzelman, Andy [mailto:akinzelm at greatnortherncorp.com] 
Sent: Monday, December 08, 2014 8:29 AM
To: chaz at properproper.com
Subject: VV - Corvair header & fan

 

Charlie,

Some comments:

1.       If the fan is loose on the hub (not motor shaft) - when removed
from the motor; centering it over an appropriate socked and using a punch to
lock them together works well.  A plastic fan out of a non-AC GM (early 70s)
also works well.

2.       A high speed fan motor (later GM) with a relay on the high speed
circuit works wonders (tech guide has this).

3.       A good addition for the late dash is a ground wire with a spade
connector fastened to the steel back of the instrument housing.  Connect
that to spade connector grounded to the under-dash steel structure.  This
fixes a host of grounding ills.

4.       You should get warming air even if the blower motor is not working
(engine fan pushes it).

5.       Heater resistor is in the right front fender (I think); pull it out
and ensure there are no broken wires.

6.       Make sure your lower heater hoses are good.  Do NOT use flexible
aluminum dryer ducting (I've seen it - too much heat conductivity).

7.       Make sure if your left heater hose has wire reinforcement that it
can NOT get to the starter connections (this can cause a nasty short);
either held out of the way and/or with a non-conductive foam collar.  I
prefer Clark's plastic reinforced hose.

8.       If everything is up to snuff these cars make decent heat.  I drive
a Corvair daily here in SE Wisconsin.  No oil leakage into the lower shrouds
is a big plus.

Andy K.

Wisconsin

 

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