IML: Overheating....

[dpope1 <dpope1@xxxxxxx>]

The shop I had 'er rodded out at said mine "wasn't too bad", but before I did 
it, 'twas all I could do to get back to Knoxville from Atlanta last Thursday 
w/o overheating (was OK around town, only o-heated on the highway). Runs cool 
as a cucumber now on the highway OR back roads, with the freshly rodded 
radiator and a 180 deg. thermostat... A bit warmer on the highway but 
perfectly acceptable. Another thought: the impeller in your water pump might 
be no good. First thought, though, is get the radiator rodded out.

Dave

Date: Sun, 20 Mar 2005 10:33:30 -0600
From: dardal@xxxxxxxxxxxxxxx
Subject: Re: IML: 1967 Thermostat
Reply-To: mailing-list@xxxxxxxxxxxxxxxx
It is 16 psi, but I doubt this is your problem, it takes a very hot and long
drive day to overheat the car if this was all wrong with it. Your radiator may
be clogged. Or more likely, if the overheating happened during idle, the fan
clutch may have given up. I presume the water pump belt is nice and tight.

D^2, that had another water pump belt go at 4500 rpm, 2nd gear (90 mph)

Quoting Eric Nelson <ericnelson424@xxxxxxxxxxx>:

> Hi,
>
> I just bought a 1967 Imperial Crown. After the car has run for a while it
> overheats and leaks after it is parked the coolant flows out of the overflow
>
> tube. I flushed the system and changed the thermodstat but it happened
> again. Then I realized that the radiator had a 7lb cap in it. My 65 New
> Yorker 413 has a 14 lb cap on it and that never overheated.
>
> What is the proper radiator cap pressure for the 1967 440 motor?
>
>
> Thanks




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