Jay,
I can’t imagine driving in 115
degree heat w/o the air on. I drive my 67 everywhere with the air on all
the time. But I did experience an abnormally high temp gauge reading.during
a recent trip out in the valley where is was 104 degrees. And that was at
freeway speeds. Turning the A/C off immediately brought the temp gauge
back into the normal range. I suspect I may be running a bit too lean and
will have to fatten it up a bit when I go thru the carburetor.
Your description of high temps in stop and
go traffic leads me to believe that the fan clutch is not working properly. It’s
an item many people overlook or ignore. I replaced mine with an original
Mopar part. The ones I’ve gotten from the local parts houses fail
quickly.
You also mentioned that the engine had
recently been rebuilt. It’s quite possible the cooling tubes in the
radiator are clogged with debris from the water jackets flowing into the
radiator. This happens frequently after engine rebuilds. I have an
in-line filter in the radiator hose to trap all debris before it gets to the
radiator.
Ken
67 Crown 4 Dr Ht
From:
mailing-list-owner@xxxxxxxxxxxxxxxx
[mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On
Behalf Of JAY D'ANGELO
Sent: Friday, July 07, 2006 6:50
PM
To: mailing-list
Subject: IML: Cooling Issues
Here in Las Vegas, the summer temperatures routinely
reach 115 degrees. When I drive my 64 convertible, I usually don't have
any problems. The temp gauge will go to 3/4 and pretty much stay
there. This is wtithout the AC on.
However, if I do some real slow driving, like bumper to bumper strip cruising
or in a parade (which I do a few times a year), it pegs out and the car starts
pinging until I can get some air flow going. I don't have the AC on in
this condition, obviously.
Everything has been rebuilt under the hood, including the engine, the water
pump and radiator. I just redid the AC compressor and attendant parts and
at freeway speeds there is no issue.
Around town is what concerns me. I want to install an aux. electric
fan(s). The smallest I can find is 10 inches with a housing dimension of
11.5 X 12 X 2. The center nose support brace prohibits anything larger
and I was thinking of putting two 1250 cfm fans on. But, it will be tight
in the space allowed on the front of the AC condenser (22" wide).
Each fan will draw about 5 amps. I'm told the standard alternator is only
putting out around 60 amps and the ten more would likely create a
problem. NAPA
suggested a higher power alternator and a change in the voltage regulator.
I was unable to find anything related to my issue on the website. Anyone
with suggestions to help me?
Thanks
Jay D'Angelo
64 Iml Cvt
Las Vegas
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