Bruce Todd wrote:
> Maybe I'm missing something here, like Mike I'm slowly learning about the
> function of my coolant system and as a result I'm not so sure the blow suck
> test is accurate -

Well, my theory is ... the valve is rather unsophisticated so that when
there is little pressure (like when I had the nose in the air and
gravity let coolant get past) it doesn't seal well like it does when the
system becomes pressurized.  That said, I'm sure some seal better than
others (under low pressure) but still do their jobs.

Mike