You have to get the back end way up there..20 inches or so above level.. For me
that puts the cap about lower chest.

John Rodgers

Mark Dorm wrote:

> What kind of incline do you need - you could maybe do this on the slope of a
> hill... and what about possible air in the radiator like Bill was pointing
> out.... are you getting the tailend higher than the radiator - is it (the
> pressure cap) the highest point???
>
> >From: John Rodgers <inua@hiwaay.net>
>
> >Mark,
> >I learned the trick of raising the rear of the van to bleed the cooling
> >system
> >from my mechanic, and man of 30 years experience with VW's. Bleeding the
> >system
> >through the front bleeder valve is a bit of a PITA. Jack up the rear, with
> >the
> >pressure cap off, run it until the cooling fan cycles several times. That
> >way
> >you know the thermostat is open and coolant is circulating.Watch the
> >coolant
> >tank. if there is a bubble the tank will burp, the level will drop a tiny
> >bit,
> >and you can top it up then. Be sure to put coolant in the expansion tank
> >and
> >reinstall the pressure cap.
>
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