1983 240D -Alright, I've lost the rings in my #4 cylinder and have tons of blow by. My oil pressure is greta and I have no complaints with my head.
My question is does it make sense for me to pull the engine myself and send the block to a machine shop for new rings and sleeves and leave the bearings ,which seem fine, alone? I'm trying to do this as quickly and cheaply as possible and get her back on the road. she's only got about 200k miles on her and i can't justify a new engine, full rebuild or the uncertainty that would come with just dropping an unknown used engine in her.
My thought is, that if i just got a weird fluke ring mishap, everything else should be ok on an engine of this mileage.
am i nuts?

Dale