I think that Paul H and Jim N are on the right track. The overflow spout on
the filler neck is
positioned such that the typical cap functions as a check valve. It allows
fluid out but not in.
So moving the suction tube to the bottom of the tank won't suck fluid back in.
Again this is my first hand experiance. I have tried this and have not had the
fluid return to
the radiator.
Maybe the problem is that I'm not bi directional.
Larry Hoy
> -----Original Message-----
> From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net]On
> Behalf Of Ajhsys@aol.com
> Sent: Tuesday, April 04, 2000 1:30 PM
> To: ATWEDITOR@aol.com
> Cc: mgs@autox.team.net
> Subject: Re: coolent recovery
>
>
> In a message dated 4/4/00 1:24:16 PM Eastern Daylight Time, ATWEDITOR@aol.com
> writes:
>
> << << You only need a bi-directional radiator cap to make it work. >>
>
> I am NOT bi-directional, and I resent the implication!
>
> Seriously, I have never known such a thing existed. My caps are all stock
> caps, and yet they suck coolant with the best of them. And, yes, please run
> the hose to nearly the bottom of the recovery vessel. >>
>
> - - - - - - - - - - - - - - -
>
> I don't think it has anything to do with the cap itself. The overflow tube
> comes out of the rediator filler neck. You just re-route the overflow tube
> into the recovery bottle. The cap has nothing to do with it, other than
> sealing the top of the radiator to pressurize it.
>
> Allen Hefner
> SCCA Philly Region Rally Steward
> '77 Midget
> '92 Mitsubishi Expo LRV Sport
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