Knivens894
New User
I have a 1962 MF-65 with Perkins AD4-203 direct injection diesel engine which was just completely overhauled.
When trying to start it, it turns over about 10 times then the engine locks. At this point it is very hard to
turn even with a wrench, so I pulled the head for inspection. I found the number 2 cylinder completely black
with soot while the others are clean. During the overhaul all injectors were replaced with new, as were the
pistons, sleeves and rings. I tested the valves and they are all sealing properly. I suspect a hydraulic lock
caused by a defective (leaking) injector on the number two cylinder. Before I button it back up, I would like to
know if anyone else has had such a problem, and if so, am I on the right track for the repair?
When trying to start it, it turns over about 10 times then the engine locks. At this point it is very hard to
turn even with a wrench, so I pulled the head for inspection. I found the number 2 cylinder completely black
with soot while the others are clean. During the overhaul all injectors were replaced with new, as were the
pistons, sleeves and rings. I tested the valves and they are all sealing properly. I suspect a hydraulic lock
caused by a defective (leaking) injector on the number two cylinder. Before I button it back up, I would like to
know if anyone else has had such a problem, and if so, am I on the right track for the repair?