Here's a novel alternative, haven't tried it, not sure how it works though if the thermostat is closed. Any clues?
Or else, the traditional method is fully described here and worth printing out as a checklist during the procedure:
Goto: http://www.vanagonparts.com/home.html then follow the links to "Technical Information/Cooling System/System Refill".
This traditional method I find is best done with 2 persons.
--- In Syncro_T3_Australia@yahoogroups.com, "Les Harris" <leslieharris@...> wrote:
> In passing, I have seen two methods of bleeding the Syncro, both of which appear to work.
> The first was a specially made extension that fitted to the top of the expansion tank. The length was such that the top of the extension was above the top of the radiator and the guy who made it said that he got full flushing of air just by running the engine.
> The second is the method used by Dean Coutts at Volkspower and they do a lot of T3's. Dean bleeds the system by running the engine a bit above idle and keeping the expansion tank full while he is doing it. When the expansion tank no longer takes coolant, it is bled.
> Both methods seem to work.
> Cautionary Note:
> Dean has mentioned to me several times that the air bleed hole in the thermostat diaphragm is exceedingly small and that he has seen them clogged with the sort of gunk that frequently circulates in the cooling system. He advises enlarging the hole to avoid this clogging and the creation of air locks.
> De_- and they do a lot of T3's,_._,___