I have a 32 yr old boat with a Volvo MD17C engine that burns about 1/4 qt of oil in ~12 hrs of cruising. It is hard starting and when it catches, there's a lot of unburnt fuel. Injectors have been rebuilt several months ago but no compression test. I'm thinking compression will be low. Been thinking of replacing with a Beta (~$12K), however, have also been thinking about just rebuilding the Volvo. My thought is to have an oil analysis done to see how the bearings are looking and then pull the cylinders for rings/valves and everything that goes with it. Parts look to be about $1800 and I can do the labor myself as I have rebuilt some car engines. So, assuming oil analysis is positive, and about $1800 plus some machine shop fees, I can have an engine that would last another 2500hrs (I'm 59 yrs old). The $1800 includes new liners which may or may not be needed. Anybody have experiences rebuilding these engines? Good resource for parts? How's my reasoning?