This isn't science on my part but is fact as close as I can determine: the
I4 head is about 6" above the 'boxers, and the top tank on the radiator is
about 14-16" above the I4 head/water jacket. I agree with David's assessment
having bled both my '91 'boxer and current I4, even though there are a lot
of hoses in the engine bay.

Bob
'87 Syncro Westy TIICO
http://groups.msn.com/BobsPhotoShare/87syncrowestfaliatiico.msnw

> Good point, I never thought about the fact that with the inline 4, the
> height of the water jacket in the head is about the same as the
> radiator. Not so with the WB.
>
> On Jan 17, 2004, at 4:22 PM, David Brodbeck wrote:
>
> > Jim Felder wrote:
> >> Good advice, but somewhere during the 80s vanagons gained both a
> >> bleeder valve in the engine compartment and a heater under the rear
> >> seat. Both must be dealt with in bleeding the system. Bleeding my 83
> >> diesel, which has neither of these features, is easier than my 90.
> >> which has them both.
> >
> > After reading all the consternation on the list about bleeding
> > wasserboxers, I've come to the conclusion that, for some reason, the
> > diesel cooling system is just plain easier to purge air out of.  I've
> > never had any problems bleeding my '82.  I wonder if it has something
> > to do with the I4's slightly simpler cooling hose routing?
> >
> > --
> >
> > David Brodbeck, N8SRE
> > '82 VW Diesel Westfalia
> > '86 Volvo 240DL wagon
> >
> >
>