Hi,
I have a Yanmar 2GM20F.
My boat has sunk last year and staid in the water for 5 days. I was able to remove the water in the cylinder (only one cylinder was affected) and the moter is working correctly. I have changed the oil few times to clean eveything.
This year, the motor is still working good, but I realized that when the motor is cold, he is starting only on one cylinder. The second cylinder needs about 30 secondes to start. When the motor is hot I don't see any difference and the motor reachs 3,600 RPM without any lack of power.
What can be the problem and how can I fix it? It maybe a compression problem because one cylinder is affected? maybe the rings are jam? maybe the valve are affected?
Before opening the motor, I will like to have an idea. What should be the first steps? cleaning the injectors?
In a month I will pull out the boat for the winter. Maybe I should add something directly in the cylinder chamber for the winter time to help the rings?
If someone has an idea please let me know,
Bernard
I have a Yanmar 2GM20F.
My boat has sunk last year and staid in the water for 5 days. I was able to remove the water in the cylinder (only one cylinder was affected) and the moter is working correctly. I have changed the oil few times to clean eveything.
This year, the motor is still working good, but I realized that when the motor is cold, he is starting only on one cylinder. The second cylinder needs about 30 secondes to start. When the motor is hot I don't see any difference and the motor reachs 3,600 RPM without any lack of power.
What can be the problem and how can I fix it? It maybe a compression problem because one cylinder is affected? maybe the rings are jam? maybe the valve are affected?
Before opening the motor, I will like to have an idea. What should be the first steps? cleaning the injectors?
In a month I will pull out the boat for the winter. Maybe I should add something directly in the cylinder chamber for the winter time to help the rings?
If someone has an idea please let me know,
Bernard