2016 DF140A 1000hrs
Checked valve clearances at 1000hr service - All inlet in spec at .25mm, exhaust are all out of spec between .28 - .78mm!
Doesn't make sense with the exhaust tappets being loose. I live in a remote area of Australia that uses odourless fuel called Opal, suspect this is possibly a major contributing factor. I was advised to run two stroke oil at 200:1 to offset any issues with the fuel which I have done for the last couple of years. Don't know the history of the motor and if clearances were checked previously.
Has anyone ever seen anything similar? Also the .78mm clearance won't come back into spec with the largest shim available. What are the thoughts on options? Motor runs fine, no smoke or temp issues and compression is good.
Checked valve clearances at 1000hr service - All inlet in spec at .25mm, exhaust are all out of spec between .28 - .78mm!
Doesn't make sense with the exhaust tappets being loose. I live in a remote area of Australia that uses odourless fuel called Opal, suspect this is possibly a major contributing factor. I was advised to run two stroke oil at 200:1 to offset any issues with the fuel which I have done for the last couple of years. Don't know the history of the motor and if clearances were checked previously.
Has anyone ever seen anything similar? Also the .78mm clearance won't come back into spec with the largest shim available. What are the thoughts on options? Motor runs fine, no smoke or temp issues and compression is good.
