Isn't a 7 lb. cap a little low? A sealed system would have a 12 or 14 lb.
cap, I would expect. It would operate more efficiently at a higher
pressure, I would think. I'm not familiar with As, however... but temp
shouldn't climb at a 60mph cruise, that's for sure. Maybe an oil cooler
would help?
Edwin McCarroll had this to say:
>Is there a solution recommended for flushing out the head and block
>coolant galleries? I really can't tell if there is any blockage,
>partial or otherwise, in the system, but thought that either a strong
>alkaline or mildly acidic solution might dissolve anything adverse that
>might be in the way. The engine is in the car. I have isolated the
>engine from the heater and radiator and removed the thermostat. I have
>tried other routes towards better cooling, including adding another row to
>the radiator, and trying a seven lb. cap. Also water wetter. Things
>have improved, but still am experiencing a gradual climb in temp. at
>60mph. over time. Timing seems to be ok. Any suggestions?
>
>
--
Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the red one with the silver bootlid.
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