is the cap on the radiator a pressure cap - because it shoudn't be - the cap
on the reserve tank is the pressure one - on the radiator it should be a
blank cap - if they are reversed or both pressure caps the coolant can
expand into the reserve tank but cannot return to the radiator as the system
cools down - hence a full reserve tank and lower radiator level ( it should
be full to overflowing)
regds Rob Hewitson
-----Original Message-----
From: Matthew W Peterson <pete-3@juno.com>
To: datsun-roadsters@autox.team.net <datsun-roadsters@autox.team.net>
Date: Wednesday, June 30, 1999 4:55 AM
Subject: coolant reserve tank woes
>Hi everyone
>
>What does it mean when you open the coolant reserve tank when the engine
>is cold and you get a spray of water from it? I went out to check my
>coolant level this morning and that's what happened. I took off the
>reserve tank cap first and I got a suprise spray of water. The coolant
>level is fine. Shouldn't the coolant be sucked back into the radiator
>when the engine cools? What would cause coolant to be let in but not be
>sucked back out? I'll check the hose tomorrow on my day off. Any other
>suggestions?
>
>Thanks alot,
>
>Matt Peterson
>'68 1600
>Zimmerman, MN
>
>
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