1997 Mariner 150 EFI #0G508602
I bought this engine with one cylinder low on compression. #1 cylinder scored but not to bad.
I now have it disassembled and have a couple concerns. The grooves in the block where the crankshaft sealing rings run looks to be normal wear but at what point is it excessive and how would you deal with it?
I have read the post about getting rid of the oil injection system and I would rather not do that. The system got it to the point of being more than 20 years old. So should I replace a 20 year old oil pump or figure it’s not a big wear item and continue on with the original one?