I think the best way for getting rid of an air bubble is to simply get the car up to temperature, heater on full hot to allow max waterflow, and leave the radiator cap off. Cool water is sent into the engine via the lower radiator hose and hot water exits at the upper radiator hose.
Once the thermostat opens, any hot air should be able to escape into the radiator, and out the cap. If you haven't done this before, just let the engine warm up with the radiator cap off. Don't go for a drive and then try removing the cap. 15psi behind a couple gallons of 200-degree liquid can hurt. I did that once when I was in my teens. Ouch. -Dave -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Graham Wooden Sent: Sunday, January 09, 2005 4:44 PM To: The Chevelle Mailing List Subject: Re: [Chevelle-list] Getting rid of an air bubble in cooling system That seems to be what my cooling system is exhibiting - gauge showing real hot but no water really flowing out. Everything is new and pretty quality (BeCool alum radiator/elec fan) - so I am pretty sure once I get this bubble taken care of, it will run at a decent temperature. I think I will try that little bypass hole. Thanks Brian! -Graham On 1/9/05 4:30 PM, "Brian Knight" <[EMAIL PROTECTED]> wrote: > Graham, never had an air bubble myself, so I may not have the best > description of the symptoms. You would get a hot/overheat reading on your > gauge because the air is trapped at the stat. Hot air will not heat up and > open the stat the same as water. I have always drilled a small (5/32 or so) > hole in my stats to allow a small flow of water, eliminating the potential > bubble. Sort of like a bypass. It also will allow a slightly hot running > engine to be a few degrees cooler if you can't afford aftermarket > pumps/fans/radiators. > > Brian > >> From: Graham Wooden <[EMAIL PROTECTED]> >> Reply-To: The Chevelle Mailing List <[email protected]> >> To: The Chevelle Mailing List <[email protected]> >> Subject: [Chevelle-list] Getting rid of an air bubble in cooling system >> Date: Sun, 09 Jan 2005 15:09:01 -0500 >> >> Hi folks, >> I believe I have an air bubble in my cooling system. What are the symptoms >> (I want to make sure I have one) and what it the best way to get rid of it? >> >> Thanks all, >> >> -Graham >> 67 SS >> http://projectchevelle.com/ >> >> >> > > _________________________________________________________________ > Express yourself instantly with MSN Messenger! Download today - it's FREE! > http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ > >
