In a message dated 4/12/06 8:32:49 AM Eastern Daylight Time,
spamiam@comcast.net writes:
<< You make good suggestions here.
I will check into the stuff it will take me to pressurize the cylinders.
Why does it need to be at TDC? Would not BDC work as well to test the head
gasket integrity? >>
Both valves need to be closed, TDC compression stroke is a convient place
where this happens. The valves are also closed at other piston positions but
the
air we pump in will rotate the motor causing a valve to open.
If you have the rocker arms off, piston position won't matter and usually
ends up at the bottom once you apply air.
<< I don't have an IR temp gauge, but I will try to find one. >>
You can also use a contact thermocouple type.
<< As I said in a previous post, I ran the engine until it was quite
warm....
7/8ths scale on the gauge. I stopped the engine and the radiator was cool
except at the top. Could this happen under normal conditions with about 60
degrees ambient temp? I suspect not.... Therefore I suspect a clogged
radiator. >>
Does the engine feel too hot? Did the motor run long enough that the
thermostat should be open? A hot rad inlet is a sign of circulation problems.
Could
be a thermostat not opening far enough ,water pump with corroded fins. ( I
thought in a prior post you changed the t stat )
Harold
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