Sounds like the culprit is in fact the pump...I've experienced simi;lar
problemson later models , and found that the pump impeller was actually loos on
the shaft, resulting in a condition similar to what you allude;; Pull the pump,
and see it this is in fact the problem, and if it is , yoi can have any
capable machine shop simply drill and pin the impeller ..( Works on slant sixes
, )
jbandlp @msn.com..'67 imp. georgia..
----- Original Message -----
Sent: Saturday, September 11, 2004 8:52
PM
Subject: IML: coolimg system spitfire
6
my 53 imperial seems to run cool without having
to have redone everything, but my 54 windsor with the spitfire 6 is giving me
a problem.the car was overheating when i bought it. i re-cored the radiator,
had the pump rebuilt, replaced the water distribution tube and hoses and
thermostat[160].at idle, in drive, the car will almost overheat in about 3 to
4 minutes. today i removed the thermostat and the engine runs much cooler and
it will rise in temp at idle, but within the normal range. it does run too
cool without the thermostat but at least i can drive it without fear of
getting stuck in traffic and overheating. after coming up with several
theories and discarding them, i seem to have noticed that at idle the water
flow is so poor as to be almost non-existent. ay about 1200 rpm you can see a
signifigant rise in the water flow when looking in the top of the radiator and
of course no temp problem then. i know that thse cars were capable of running
in the proper range as built so i definitely have a problem. my thought now is
that the water pump was not worth re-building as it may have too much
clearance in the pumping vanes. obviously if i replace it with a new pump this
theory will be tested[ i would have to replace the thermostat too for a proper
test]. before i spend the money on this i would like to know if any club
members have had any similiar experiences and what they did to resolve
it. dennis
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