My 1980 Merc 200 died on Saturday. I went out for a speed run early in
the morning and it started running rough, It wouldn't come up past
4000RPM, I lost the Tach and it finally just died. I can still turn the
engine but can't get combustion. The lower end is leaking oil. I know
the seal on the lower end is gone but need help on trouble shooting the
bigger problem. Thoughts?