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Date: 14 Dec 2004 15:14:55 GMT
From: Dave Hinz <>
Subject: Re: c900 heater core bubble???

On Tue, 14 Dec 2004 12:46:13 +0000, Grunff <> wrote: > Dave Hinz wrote: >> I used Grunff's suggestion of opening the bleeder nipple on the thermostat >> housing, but I'm failing to see how that, being lower than the heater core, >> is going to help. What am I doing wrong? > > I've usually managed to clear it by opening the thermostat bleed nipple > and revving the engine - it's the revving that does it. Ah. Didn't rev, because I was in the garage and didn't have a hose on the end of the bleeder. Seems like we're back to the c900 clutch bleeding conversation all over again. > There was one time when I just couldn't clear an airlock, so I > pre-filled the heater core by connecting one end to a garden hose and > flushing through at high flow. That worked. I'll get heat. It had warm before I replaced the thermostat which was stuck open, so I know the heater core is good. Now, it has warm-ish, and I *know* a c900 heater can pump out real heat. We'll get there. Thanks again Dave

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