I have an oil leak in my 1984 240D where the injection pump
attaches to the engine. I already have the gasket and the
original 3 very fat and heavy MBZ manuals. I saw an exploded
view of the pump and see that it has an o-ring on the front
end of the injector shaft where it passes into the engine. I
forgot to order that. Does anyone know if this is a
standard o-ring? Most likely it is metric and should it not
conform to some spec for the hot and oily engine application?
I guess I should first remove the pump to inspect the o-ring
and replace it only if damaged.
Is a gasket cement necessary for this job? The manuals are
great on pictures and diagrams but very weak on good sets of