Lucky that's all that happened. This truck shouldn't boil over as
a normal thing in warm weather. Probably a plugged radiator or possibly
a head gasket leak or too hot a thermostat (or you are running at
too low a cooling system pressure).
Something froze and burst, probably putting a big crack in the water
pump. Lucky it was there and not the block, head, or radiator.
They make this wonderful stuff now called anti freeze that you add
to the water to keep this from happening <g>.
Even if it is just a little below freezing, it is still below freezing
and bad stuff will happen to water only systems.
Bruce Kettunen
57 3200
MN
At Wednesday, 14 November 2001, you wrote:
>Well all summer my 46 1/2 ton was boiling over, after an hour drive.
>Original 216 with NO MODIFICATIONS, 65,000 miles, one rebuild with
+30, new
>head job last summer. It runs great in the winter and below 70
outside it
>hangs out around 175. So I just add a 1/2 gallon of water as needed
and I
>was on my way.
>
>Now that the temp had dropped and I did not have anything in the system
>beside water, I now have a stream of water going down my driveway. I
>refilled the system and started the motor. Well it still is poring
out. At
>first I thought it was coming through the driver side of the block.
Well
>now I have found it to be coming out the bottom of the water pump.
Between
>the pump and the block. I have both a rebuilt water pump and a
water pump
>rebuilding kit. I am guessing that I should swap it out with the
>replacement and hope everything is ok.
>
>Any input?
>
>It looks like a simple but time consuming job - is it - any hints?
>
>Thanks,
>NHJim
>45 Chevy 3104
>Hollis, NH (now it up to 55)
>oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
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