Date: Tue, 18 Nov 2003 09:42:24 -0800
Reply-To: Damon Campbell <damoncampbellvw@YAHOO.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Damon Campbell <damoncampbellvw@YAHOO.COM>
Subject: Re: Overflow puking water
In-Reply-To: <3FBA44CF.C1E3DCE1@earthlink.net>
Content-Type: text/plain; charset=us-ascii
I had this same puking coolant problem at one time
that was on-again, off-again for a couple years,
actually. Unfortunately, i can't give you a
definitive answer, because i apparently just felt like
building an engine, anyway. But, i'll give you a
theory of mine (after some tests i ran).
I fabricated a little pressure tester out of an old
gutted blue cap, a bicycle pump, and the stuff needed
to hook those up. One night, i pumped it up to about
16psi (about all the pressure cap is supposed to hold,
right?), and let it sit for about 12 hours. No
change... maybe 1psi. After that, i let it idle until
it got up to temp (radiator fan cycling). Again, no
change in pressure. So, no leak and no exhaust
gasses?
So, what do i kind of think it was? A bum cloth
braided hose. Cracked enough to let air in (maybe on
cool down? maybe at some random low-pressure event?),
but not cracked enough to let water out. That whole
viscosity thing, you know.
Again, i don't know for sure, but that is all i could
come up with given the symptoms (exactly what was
described here!). Oh yeah, i also had my water pump
replaced with no change in an effort to fix the
problem (pissed me off, too, because i left the van at
a reputable mechanic's for three weeks and,
essentially, an open pocket book saying "i just want
it fixed when i get back... do *whatever* it takes!
Not something i usually do.)
Anyway... check for brittle hoses.
-Damon
--- mark drillock <drillock@EARTHLINK.NET> wrote:
> Here is a suggestion. Put a pressure gauge on the
> cooling system and
> verify that the pressure is still going up very fast
> when the engine is
> running at idle after full warmup. If it is, shut
> off the engine and
> relieve the pressure. Then remove one sparkplug
> wire, ground it, and
> start the engine. If the pressure builds again, shut
> down, relieve the
> pressure and move to another plug wire. When you get
> the one with the
> leak the pressure should not build or should build
> much slower.
>
> Mark
=====
'84 Westy (Sparky) w/2.3L WBX (wow... it actually works!)
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