<VV> Overheating - Deflashing Heads

[Charles Lee]

Hmmm...

Maybe I need to consider 'de-flashing' too, since my 67 Monza is coming out 
of her 13 year hibernation and doesn't seem to want to go more than a mile 
or so before overheating ?

No temp gauge yet, just the ID10T light, and running through the first tank 
of new hi-test gas.

The engine has a healthy coat of gunk that needs to be cleaned and maybe 
de-flash the jugs while I've got her torn down ?

I might just do the rings, too, since it seems to be blowing a bit from the 
fuel pump (see other posts) and PCV breather.

Interestingly, when I removed the right lower shroud, I found about a pound 
of blue stones (road gravel ?) fell out, only on the right side ?  Like 
someone used the fan as a cement mixer ?

Thanks for the tutorials - they are great !  Can't wait for wiki-Vair to 
become a reality ?!!?

Charlie


----- Original Message ----- 
From: "Bill H." <gojoe283 at yahoo.com>
To: <virtualvairs at corvair.org>
Sent: Monday, July 26, 2010 1:18 PM
Subject: <VV> Overheating - Deflashing Heads


B"H

Hi all...since I installed A/C in my Corvair it's been nothing but trials 
and
tribulations! Last week, maiden voyage past my 4 mile commute to/from work,
temp outside was around 95 degrees and we got stuck on the FDR Drive in NYC,
bumper to bumper for over an hour in the hot sun. I had to go upstate to 
answer
a traffic ticket.

The oil temp gauge kept getting hotter and hotter, got past 260 degrees and 
onto
340, no place to pull over.

I shut the A/C off before that point. However, as we idled our way up the 
east
side of Manhattan, the TEMP/PRESS light came on, and I gingered the car as 
best
I could till we could pull over (there's no place to pull over until you 
cross
the George Washington bridge and get onto the New Jersey side of the 
border).
She was pinging loudly too, but as soon as we crossed the state line we 
stopped
at a rest area and I let her cool off for a few minutes, and the sun went 
behind
the clouds.

The temp went down to around 260, we got back on the highway but now there 
was
no traffic, so she stayed just under 260, I turned the A/C back on and there 
was
no pinging, nor did the TEMP/PRESS light come back on either.

Coming back, it was raining, hail, thunder/lightening, etc. but she ran ok. 
In
fact, the A/C was a godsend because at least the interior was cool and
de-humidified.


As soon as we got back into Brooklyn, hot weather and idle, idle, and idled 
our
way home. Temp went back up, TEMP/PRESS light back on, pinging, etc. even
though the gauge indicated 250 degrees for the oil.

It hit me that not de-flashing my cylinder heads was a B-I-G mistake, and I
better do this before I take the car out again on a trip. She still runs and 
I
pray to the Al-mighty that I didn't damage her engine permanently.
.
So, does anyone have suggestions for the best (and least intrusive) way to
deflash the heads? I don't mind removing the top shrouds if it doesn't take 
all
day to do, and if it makes de-flashing easier. Can de-flashing be done from 
the
top of the engine instead of getting under the car.

I've heard that a long 1/8" drill bit is the best way to go. If that's so, 
then
I assume that this size bit will fit in between the fins?

I'd appreciate any and all suggestions and thanks...Bill Hershkowitz 69 
Monza
110 PG



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