Yes - that is exactly why I was confused Mark. David - that makes sense if the seal was busted - at one point I suspected there were holes in that small hose that connects them (and there were, it was shot - but the backup prevailed - despite my 'squeeze pressure test')
On Mon, Sep 9, 2013 at 12:52 PM, mark drillock <mdrillock@cox.net> wrote: > We aren't talking about the cap leaking around the threads where air can > come back in. The normal leaking mode is that the pressure regulation > system of the cap fails and then coolant is easily pushed into the > overflow through the hose barb of the cap. Air can't come back the other > way unless the overflow tank is empty, since the cap hose discharges > into the bottom of the overflow tank, below liquid level. > > Mark > > > Dave Mcneely wrote: > >> Tom, if the pressure cap is leaking, then air can enter it just as >> coolant can escape. mcneely >> >> ---- Tom Carchrae <tom@CARCHRAE.NET> wrote: >> >>> This is not a different issue - this is my cooling issue.... :) >>> >>> I have a question to ask the experts regarding the bad cap theory. I get >>> how the fluid ends up in the overflow tank - but if it just a cap, where >>> does the air/gas come from the displaces the coolant - and why does it >>> not >>> pull the coolant back into the pressure tank when it cools? >>> >>> >> |
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