Labrador-tractor
Well-Known Member
well I bought a 62k series 920 that is a bit of a fixer upper. engine was weather seized when I bought it and I had full intentions of pulling the motor and inspecting it as soon as I got it home due to not trusting the work done on it in the past. story is they installed a new crank, bearings, seals and rings. on startup the engine knocked! pulled oil pan and found a rod got missed with the torque wrench.... tightened that and all was good. times got busy with that company so poor 920 got drove outside the shop unfinished and sat a year or more. they went to start it to move location and it was stuck, not having tie to play with it they pushed it on the float with a komatsu and hauled it off at the storage yard with another. there it sat for several more years until I came along.
Day 1 I show up rock the motor with a bar a little bit and it turned 360 with very little effort, great I thought! Day 2 I grab some new batteries and try firing her up. I would get smoke but no fire, turns out the rack was stuck so I pulled the governor and worked the rack until it was free, by this time its dark out. Day 3 I show up and she fires up! sounds great, has great oil pressure, builds air, hell the brakes even worked! I run it around the yard a bit and everything was great so I say I might as well drive her home. its a 1.5 mile drive from the yard it was in to my house via dirt road so I figured that should be no trouble.... I made it less then half way home and she locked up with very little warning. I get out for a look and see oil dripping, look up under and see no drain plug. I walk about 100 feet back and see the oil splat with the drain plug sitting on the ground. so after forgetting to tighten the rod nuts they forgot the drain plug!!!! so I get the tow of shame home behind a volvo.
pulled oil pan and found #3 rod spun and seized.
had loader floated to my cabin where it will live and pulled motor this weekend.
pulled crank tonight.
stuck crank in lathe and cleaned up #3 rod journal, got all the bearing material off with some 320 and was still on the upper end of spec for size.
Day 1 I show up rock the motor with a bar a little bit and it turned 360 with very little effort, great I thought! Day 2 I grab some new batteries and try firing her up. I would get smoke but no fire, turns out the rack was stuck so I pulled the governor and worked the rack until it was free, by this time its dark out. Day 3 I show up and she fires up! sounds great, has great oil pressure, builds air, hell the brakes even worked! I run it around the yard a bit and everything was great so I say I might as well drive her home. its a 1.5 mile drive from the yard it was in to my house via dirt road so I figured that should be no trouble.... I made it less then half way home and she locked up with very little warning. I get out for a look and see oil dripping, look up under and see no drain plug. I walk about 100 feet back and see the oil splat with the drain plug sitting on the ground. so after forgetting to tighten the rod nuts they forgot the drain plug!!!! so I get the tow of shame home behind a volvo.
pulled oil pan and found #3 rod spun and seized.
had loader floated to my cabin where it will live and pulled motor this weekend.
pulled crank tonight.
stuck crank in lathe and cleaned up #3 rod journal, got all the bearing material off with some 320 and was still on the upper end of spec for size.