To all the guys that offered advice on the heating problem
of the D500-3 426.. I finally found the problem.. I went out and bought a
laser heat gun that will tell you the degrees of anything… as I went
around the engine when it was running,, the radiator was running 205-210, the
block on the rt side was running about the same,,, went I pointed at the left
side head, it was up to 225-235-… so that told me it was in the head or
rt block side.. so I pulled both heads,, in the left head in one of the water galleries
that runs full length of the head was a wire about 1/8 inch in diameter, it
went from one end to the to the other.. as I pulled it out, it was very soft
and rust,, along with it came all kinds of crap. From gasket material to
pieces of rust, etc… after I cleaned it good and put the head back on,
it now runs 170….so,, that’s one for the books,,, it looks like at
the time the head was cast, a piece of wire was used to ether hold the head
or what ever, I don’t know for sure what it was used for but it was defiantly
left in the head from its creation…. Thanks to all for your help and
advice,,,
mel
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