anyone have advice on what could be wrong with my 93 civic had the clutch replace and about 30,000 miles later it was slipping again they said the rear main was defective and replaced the seal and clutch for free again. once again the clutch is slipping and the rear main seal is leaking. i was told could be the crank shaft bearing is worn. what do you guys think. i'm thinking of swapping in a b16a2 jdm motor if it's to much of a pain to fix. thanks