Has anyone had a cracked piston ring in a Yanmar 2 cylinder? And if so, what were the symptoms?
Background: For the past year or so I’ve had a slowly worsening smoke exhaust problem that occurs after the engine warms up and approaches cruising rpm. Smoke is a blue and white-ish color, hard for me to tell whether it’s primarily blue or white. Had a mechanic do a compression test and a wet/dry leak down test. Compression was good and the leak down was apparently OK (don't have all the details about this0. The recommendation was to first rebuild the fuel injectors and then the injector pump if the fuel injectors alone didn’t solve the problem. After having all of this done, there’s been absolutely no change in the exhaust...engine still smokes like a chimney. The mechanic is now recommending checking the piston rings, which requires pulling the engine.
Does a damaged piston ring sound like a good next step to go in? Is there any way of checking or confirming this w/out pulling the engine?
If I do have to have the engine removed, what else should I have taken care of at the same time? This is a boat I really like and don’t plan on selling any time soon.
Thanks.
Background: For the past year or so I’ve had a slowly worsening smoke exhaust problem that occurs after the engine warms up and approaches cruising rpm. Smoke is a blue and white-ish color, hard for me to tell whether it’s primarily blue or white. Had a mechanic do a compression test and a wet/dry leak down test. Compression was good and the leak down was apparently OK (don't have all the details about this0. The recommendation was to first rebuild the fuel injectors and then the injector pump if the fuel injectors alone didn’t solve the problem. After having all of this done, there’s been absolutely no change in the exhaust...engine still smokes like a chimney. The mechanic is now recommending checking the piston rings, which requires pulling the engine.
Does a damaged piston ring sound like a good next step to go in? Is there any way of checking or confirming this w/out pulling the engine?
If I do have to have the engine removed, what else should I have taken care of at the same time? This is a boat I really like and don’t plan on selling any time soon.
Thanks.