Hi all,
Can any one out there tell me how much blow by is acceptable ? Mine has 1800 hours and when I take off valve cover oil cap ( after full warm up, maybe running 30 minutes) their is quiet a large amount of vapor / blowby and also when it is running and I pull the dipstick it blows oil out the dipstick hole along with oil vapor. Are the rings shot or do all these yanmar 3 cly have a lot of crankcase pressure??
Can any one out there tell me how much blow by is acceptable ? Mine has 1800 hours and when I take off valve cover oil cap ( after full warm up, maybe running 30 minutes) their is quiet a large amount of vapor / blowby and also when it is running and I pull the dipstick it blows oil out the dipstick hole along with oil vapor. Are the rings shot or do all these yanmar 3 cly have a lot of crankcase pressure??