On Mon, 20 Feb 2006 17:12:30 +0800, "TE Cheah" <no@spam.biz> wrote:

>| Whatever bubbles collect in the radiator should get cycled
>| out to the reservoir each time the engine warms up.
>
>Only if cap ( like my Toyo cap ) puts too little pressure on coolant
>, & coolant gets hot enough for bubbles' pressure to exceed cap's.
>Even then, not all bubbles will escape ; when bubbles escape,
>remaining bubbles' pressure will drop til < cap's, then no more
>bubble will escape.

The amount of pressure your cap provides is directly correlated with
he temperature at which it is intended to open. The is technology
from, oh I'm guessing, the 1920s. All of the dissolved gas is quickly
vented form the system and, if any remains, it isn't causing a
problem.

I cringe to ask what you think the problem is here.