guru at Vetus HQ in Schiedam, Holland
is Bernard Jansen - firstname.lastname@example.org
. He speaks and writes very good English
as do most of the people in that office. The engine is based on a Mitsubishi block. The US headquarters office of Vetus is in Hanover, Maryland
(410 712 0740) and there are dealers and distributors throughout the US. Maryland
carries basic maintenance parts
for all M series engines, going back 30 years, but bits and pieces like washers may be easier and quicker to source locally once Bernard Jansen gives you the specs.
Good luck and let me know if you need additional help