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Subject:Re: flow to radiator from water pump How fast should it be?
From:gary hradek
Date:Tue, 6 Jan 2004 14:35:59 -0800

David,
     You make a very good point but as big as those
hoses are they are under pressure all the way back to
the back while the bleeder hole has zero pressure???
I know that if I had an equivalent size hole in the
blue cap in the back it would spray like a artery.
So why does it weep like a vein in the front given
that it is at the same pressure?
--- David Brodbeck <gull@gull.us> wrote:
> On Tue, 6 Jan 2004, gary hradek wrote:
>
> > assuming that your thermostat is wide open, what
> kind
> > of flow can you expect from the waterpump to the
> > radiator as measured by removing the bleeder bolt
> > completely.   It always seemed kind of slow to me?
> > I would expect about a gallon in 10 minutes???
>
> Remember that the return path from the radiator to
> the engine is open when
> the thermostat is open.  So what you're measuring
> isn't the full flow of
> the water pump, it's the amount of flow out that
> little hole caused by the
> pressure in the radiator.
>
>
> David Brodbeck, N8SRE
> '82 Volkswagen Diesel Westfalia
> '94 Honda Civic Si -- For Sale
> '86 Volvo 240DL wagon

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