Date: Thu, 29 May 2003 20:21:14 -0700
Reply-To: gary hradek <hradek@YAHOO.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: gary hradek <hradek@YAHOO.COM>
Subject: Re: pissing and moaning coolant
In-Reply-To: <CF46085C-9247-11D7-B2B7-003065D2C542@attbi.com>
Content-Type: text/plain; charset=us-ascii
I say do the compression test and compare the two
heads.
One is bad. The mate between the cylinder sleeve
and head is not right. This is where the steel shim
fits. So do the compression check and do it
yourself.
good luck gary
--- zampano <matthias.k@attbi.com> wrote:
>
>
> Hi all
>
> I am just wondering why the vent hole on the water
> pump would piss
> overnight and leave a puddle, with a new coolant
> cap, and right after a
> rebuild (new AMC heads, rebuilt bottom end).
>
> I would also wonder why there's pressure on a cold
> coolant system, and
> why my expansion tank fills up, but never drains
> back into the coolant
> tank. Also, why do I still get bubbles after
> bleeding it for 15 min???
> I did this for three days in a row, and have been
> doing it steadily
> over the past 3 months. To the tune of almost every
> week/ 350miles.
> Where does the 1 gallon of coolant go every week,
> and now every day.
> Thru that little hole in the water pump?? I doubt
> it. All this is
> happening with almost every peripheral part on the
> engine having been
> replaced in the last year. Items like coolant cap 2
> times in last three
> months, twice in the year before that.
>
> A compression test won't necessarily be able to
> pinpoint a head gasket
> leak. Those rubber gaskets behave different at
> random it seems. I have
> done a compression test before, while having all
> these symptoms, and it
> came out 145-155 psi all around. The engine
> overheated at random 1
> month later, and was due to a internal head gasket
> leak. And it was
> properly bled, and filled up at the time.
>
> That was with an engine with 145000 miles, as
> opposed to now it did it
> after 10000 miles and currently seems to be doing it
> at about 3300
> miles.
>
> Sure as hell a piece of work
>
> Happy Trails and thanks for the interest.
>
> Cheers
>
> Matthias
> On Thursday, May 29, 2003, at 08:07 am, gary hradek
> wrote:
>
> > matthias,
> > I would not assume that anyone did
> anything
> > wrong. It is time to do a compression check.
> It is
> > likely that a head has headed south and anyone
> who
> > bled the system may or may not be the cause or
> driving
> > with too little coolant could be the cause. If
> you
> > are lucky perhaps the head is a little loose but I
> am
> > betting you need a new head so save your sheckles.
> > Let us know what the compression check shows. If
> you
> > need any help please e-mail. gary
> > Date: Thu, 29 May 2003 02:12:46 -0700
> > From: zampano <matthias.k@ATTBI.COM>
> > Subject: once again exhaust blowing into coolant
> >
> > Hi Volks,
> >
> > I am rather certain now that the people who fixed
> my
> > van under warranty
> > last Feb messed up again, here's why:
> >
> > - after about two weeks since I got the van back
> in
> > Feb I would find a
> > small puddle of coolant underneath the rear of the
> > engine after it
> > would sit overnight. Turned out to be the vent
> hole in
> > the water pump.
> > They replaced it under warranty 11/2 months ago.
> Van
> > ran perfectly
> > smooth otherwise, except I had to keep a close eye
> on
> > the coolant
> > level, top it up and bleed it every week or so. (
> $ 80
> > in blue coolant
> > from VW). I thought this was because of the vent
> hole
> > in the water
> > pump.
> >
> > - I seem to need to top it off way more than it
> could
> > possibly whiz out
> > overnight from that vent hole in the water pump
> >
> > - I don't see any white smoke, at least not when
> it
> > idles. Don't see
> > anything in my rear view either.
> >
> > - Bleeding was never quite successful to the tune
> of
> > having no more
> > bubbles at the bleed screw on top of the radiator.
> > Even if I parked
> > with the front elevated almost 12", left it
> overnight,
> > and then would
> > bleed it in the morning for up to 15 mins, with
> > topping off the coolant
> > tank continuously, I would still get bubbles. It
> would
> > then run fine,
> > i.e. temp indicator needle never above the LED. My
> > radiator fan would
> > turn on, and all would be honky dory for some
> time,
> > until the coolant
> > would get low again. Doing the bleeding improperly
> can
> > be absolutely
> > ruled out (Bentley, Archives, list input etc)
> > The time for it seemingly being alright has been
> > continuously
> > decreasing over time.
> >
> > - After a period of time from bleeding the temp
> needle
> > would start
> > acting weird, jump up suddenly beyond the LED
> (never
> > very far, as I
> > would stop and check right away. When it did this
> the
> > radiator fan
> > would then not come on. It usually pops on right
> > before the LED.
> >
> > - If I removed the coolant fill cap,( which is
> also
> > about 2 months old,
> > with another new one before that which I replaced
> > after 2 months (end
> > of March)) there would be pressure (gas) hissing
> out.
> > I am talking
> > about in the morning, before I start the van, when
> it
> > is cold.
> >
> > - The coolant expansion tank (behind license
> plate)
> > would quickly fill
> > up, but would never drain back into the coolant
> tank
> > itself. I would
> > "manually" empty it every week and transfer it
> thus
> > into my coolant
> > tank
> >
> > - My water pumps, even the one they replaced under
> > warranty, would
> > quickly start whizzing over night. Never saw any
> leak
> > from there with
> > the engine running, with the van being warm or
> just
> > pulling of the
> > freeway, or having a friend idle it at 4000 rpm.
> No
> > leak anywhere,
> > whatsoever. Only overnight. This should be a clear
> > signal that there's
> > too much pressure in the cooling system (read:
> > exhaust???)
> >
> > - Just tonite while cruising on the freeway (30
> min
> > drive) at around,
> > never over 4000 rpm, the LED at the coolant temp
> gauge
> > would start
>
=== message truncated ===
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