<VV> Oil Cooler

Mark Durham 62vair at gmail.com
Tue Jan 10 21:05:43 EST 2012


Russ, they can get plugged up. When I did my engine overhaul I cleaned
my oil cooler by flushing with solvent then I put it in a new gallon of
carburetor cleaner. Then after a day or so, I drained it and flushed it
out to remove the cleaner. Mark. Durham

Sent from my Windows Phone
From: RUSSELL DAVIS
Sent: 1/10/2012 16:40
To: Smitty; virtualvairs at corvair.org
Subject: Re: <VV> Oil Cooler
think it would be interesting to hook up a cooler to a pressureized
system to see how much went in ...and ...out. Lots of stuff to stick
to the inside over 40  plus yrs.
Russ  Davis


________________________________
From: Smitty <vairologist at cox.net>
To: virtualvairs at corvair.org
Sent: Tuesday, January 10, 2012 4:15 PM
Subject: <VV> Oil Cooler

Smitty Says;  When I was at Putnam Park last year, after 20 laps or so
the overheat light came on.  Over the next 3 or 4 hours or so I jumped
through all the wickets trying to figure out why.  That was (near as I
can remember) his 8th year on the track and had never done that
before.  By being very conservative we were able to squeeze out some
hot laps even though losing power on the second lap.  I brought him
home and ran some tests and checked some things out, but could never
establish a reason.  Last week end I got one of them round tuits and
pulled the shroud and manifold covers.  I found several places with
stopped up fins. but right over the area where the snap switch was
located, one of those mud dauber guys had built a nest covering an
area about 1 1/2 inches by 2 1/2 inches, completely blocking the fins
in that area.  Maybe there are other problems and I will keep looking.
While I was at it I checked out the folded fin oil cooler.  Couldn't
see through it.  Cut a strip of tin about 3/16 wide and rounded and
polished the end of it.  After an hour I had cleared about an inch of
fins.  Very unrewarding.  Checked the parts stash and found one I
could read a newspaper through if I wished.  I'll be putting that one
on tomorrow.  I don't understand but I don't question reality.  The
one on the car was as clear as a new one when I put it on there.  You
might want to go a little farther than just blowing air at yours next
time you check it out.
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