Anybody,

'86 560SL with recent engine work (timing chain & related, oil pump sprocket & chain, front & rear main, valve cvr gaskets, oil pan gasket) driven easy & parked - no oil leak.

Take it out one week later, warm to operating temp & then run in third gear variable 3000 - 3600 RPM, 55 to 80 mph for 10 or so miles. Back to normal driving tooling around town, park & go in store @ 30 minutes. Come back out, oil leak - silver dollar size puddle. About dusk last nite, so I haven't had chance to try to ID origin yet.

Is it possible to build up pressure somewhere that would cause a leak to develop under these circumstances?

Puzzled in Ft. Worth,

M