On Tue, 25 May 2004, Eric Zeno wrote:

> Markus,
>     You have a freeze plug that went bad.  Cheap and easy fix, if it
> went bad on its own.  It may have blown out because the head gasket
> went.   This can rust out or just blow out. Clean out the block and insert
> a new plug with some black laquer aviation from-a- gasket.

A bad expansion tank cap (that doesn't vent at 15 psi, like it's supposed
to) can also cause a freeze plug to blow.

David Brodbeck, N8SRE
'86 Volvo 240DL wagon
'82 VW Vanagon Westfalia Diesel