----- Original Message -----
From: "Gerardo Magana" <gmagana@softcom.net>
To: "Arthur Siemens III" <asiemens3@cox.net>
Cc: <datsun-roadsters@autox.team.net>
Sent: Tuesday, January 13, 2004 10:50 PM
Subject: Re: petcock valve at the rear of the intake manifold.
> Arthur, The three way valve provides flow to the heater core, usually they
> get stuck with age. I don't think that may be your problem, try looking
at
> the simple things like a thermostat this is stuck, when was the last time
> you changed coolant?? perhaps you need to have the radiator recored, if so
> ask them to put four rows in. Somethiing to start with.
> Gerardo
> ----- Original Message -----
> From: "Arthur Siemens III" <asiemens3@cox.net>
> To: <datsun-roadsters@autox.team.net>
> Sent: Tuesday, January 13, 2004 10:03 PM
> Subject: petcock valve at the rear of the intake manifold.
>
>
> > Hello,
> >
> > I'm new to posting messages here but have been reading various other
> > postings for some time now. I have a 67 roadster that seems to be
always
> > boiling over. I have yet to look into it with a greater amount of
detail
> > and I have read a lot of suggestions on how to go about diagnosing the
> > problem.
> >
> > My question is what is the three way valve found at the rear of the
intake
> > manifold used for. I know that it is part of the cooling system, but
> which
> > way should it be turned to?
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