Prime,
de nada...hope the VC fix works and sustains.

I recall valve covers and other "sealed" parts blowing
out when the vent crank pressure had built up to the
point of "something has to give".

If they didn't address or attend to the crank vent achilles
they you may get a repeat on the next very cold day.

A Looonnngggg drive may help blow out/dissolve the
crank vent condensate, if that was/is the orig. catalyst...
GL,mD