John Achmann
Member
So I got a 730 diesel in my shop a little while ago. The owner called and said that the oil in the engine was going up and smelled of diesel. Went and looked at it and noticed that it was wet around the exhaust manifold and the top of the muffler. Told him that either a pump is leaking or one of the nozzles. Pulled pumps and nozzles and sent to the pump shop I always deal with. Got everything back. Installed and adjusted as per manual. Now time to start. Bleed out all the air and it fired up. Noticed it really only runs on one cylinder. Ran on dyno as thinking that one cylinder was washed down from all the fuel in it. Also talked to the pump shop and he said the same thing to run on dyno. Ran for 5 hours. As long as the engine is loaded the miss is gone. As soon as you back the dyno off the miss comes back. Cold start ups it spits and farts and smokes bad and it never will come out of it unless your pulling full power from it. So my question for you guys is the one cylinder damaged from all the fuel that was dumped through it? The pumps had 1300 cc difference before the pump shop repaired them. The pump shop thinks we at least need a re-ring job if not an over haul to get that cylinder back to working condition. I?m thinking the same! When at first it didn?t take long to see the oil was gaining fuel fast. Just checking to see if I?m on the right track with this project. Going to tear into it in the next night or so. Thanks for any help!
