<VV> A/C Update - 66 Monza

[J R Read]

Bill,

It is highly likely that you have a "blanket" of insulation over the heads 
and between the cylinders as well.  It is also quite possible that much of 
it was placed there by a rodent of some sort and did not just fall off and 
get sucked in by the fan.

Take a day to remove the top cover (which means first removing the carbs, 
alternator, and other miscellaneous items) and SEE for certain what is in 
there.  Also remove the lower shrouds and put some light under the engine in 
order to see if passages are clear of "casting flash".  If this engine has 
never been de-flashed, now is the time to do it.  Add 1/2 day for that.

Once this is completed, your engine should run much cooler without needing 
water injection.  If you so choose, you could leave the lower shrouds off 
during the months that you do not need to run the heater.  This also helps 
to lower engine temp and reduce or eliminate ping caused by heat.

Oh yes - replace the seals on the oil cooler.  The existing ones will be 
rock hard by now.

Later, JR


\----- Original Message ----- 
From: "Bill H." <gojoe283 at yahoo.com>
To: <virtualvairs at corvair.org>
Sent: Friday, June 22, 2012 12:10 PM
Subject: <VV> A/C Update - 66 Monza


B"H

 There was a blanket of stuffed insulation which no doubt got sucked in from 
the engine lid insulation pad, which is shredding badly. I cleaned out all 
the junk as best I could, removed the insulation from the engine lid, but 
there is still some debris in between the plates. BTW I have the 12 plate 
cooler, which was installed in A/C cars. Also of note is that I only use 
Mobil 1 synthetic since it is supposed to handle high temperatures better.

Today I got a few minutes farther before the pinging started again. I'm 
planning on removing the oil cooler and making sure its oil passages are 
clear, and cleaning out any remaining junk between the plates.

One question I have is that the Chevy shop manual says to replace the seals 
to the oil cooler if you remove it. Is this required? Also, would you folks 
recommend an oil change even though the oil is still pretty clean, it's been 
superheated a few times already?


Bill Hershkowitz 66 Monza Sport Sedan 110 PG A/C