If you recall, Der Überbird ended its last LeMons stint with a motor dead from unknown causes. Sure, there was water in the oil, we had a stuck valve and no compression in the number one cylinder, but beyond that it wasn’t obvious what had killed it. Now we know.
It was probably a bad sign when pulling the drain plug resulted in a solid 30 seconds of water pouring out. Not just the milkshake-y sludge that accompanies a blown headgasket, clean, clear water. Roughly half a radiator worth, as we learned when draining the radiator took less time than expected. Following the water came the milkshake (but no boys to the yard) and then what can only be described as motor diarrhea. After we let the sludgy foul-smelling concoction drain, the motor came out courtesy of a garage-sale hoist and onto a garage-sale engine stand. We flipped the motor and pulled the pain to reveal carnage of an unprecedented scale.
In case it’s not obvious what’s gone wrong here, the #1 piston is stuck at the top of its bore. The bottom half of the #1 piston is gone. The #1 rod now looks like a shattered metal banana and was found in the pan around the #4 cylinder. The oil pump has a huge chunk out of it and there’s a 2″ by 2″ hole through the side of the #1 cylinder into the water passage (hence, the water in the pan). Obviously, there’s shrapnel everywhere.
So, um…yeah. Probably won’t be rebuilding this one for the next race.