Radiator Coolant
Kevin,
The brass cylinder you describe was supplied by Spencer Lane Jones
directly to BCL as a better alternative - greater capacity and made
from a used artillery shell.
The obvious benefit of an expansion tank, especially in a pressurised
environment like the V8 is that sometimes, due to many factors,
specifically heat, the water will expand out of the engine, out of
the radiator and into the expansion tank and out of the overflow pipe
onto the ground - lost forever. If the expansion tank does not have
sufficient capacity then when the water cools (after you switch off
or go fast enough for the radiator to work efficiently, the reverse
pressure (as water contracts) will suck in AIR and not WATER. This
is why many older V8's with the plastic or small metal overflow tank
are useless as during hot summers the water expands more than the
contents of the tank, hence always looking like you lose water -
which you do, unless of course you have a decent sized one like
Kevin's. No pun intended.
Clyde
I pick up my Volvo Penta 2.5 litre short block this week to give my
new special a boost in low down grunt.
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