New to this forum. I ran across this site from some YouTube videos posted over there.
So as my title says, I am in the middle of a complete rebuild on a Kubota D722engine. It was originaly out of a Club Car diesel powered UTV. No idea how many hours the engine had, but looks pretty clean so my bet is low. When I bot the engine it was cheap enough so I was prepaired for a complete rebuild. Sure Enough. After trying to start the engine I saw smoke/exhaust coming out from the head gasket so I knew something was up. Pulled the the head only to find a piston had a chip missing from around the edge and of course the cylinder wall was scored. After tearing the whole unit down, I noticed that the offending piston crank arm bolts were a bit loose. I suspect this is why the piston had it's problem. The head appeared all ok. Strait level and no damage. So I assumed this would be a good canidate for a complete rebuild. After all I did want use this engine to repower a piece of equipment on my Christmas tree farm. So I am just stupid enough to keep going. I have all the parts for the rebuild including a complete new gasket kit, new oversized pistons and rings. The block has been bored and I am putting it back together.
Disclaimer: This is my first engine rebuild. I have a shop manual, but it is less than perfect for a novice.
Here is where I stand. I have the crank in, but am now hung up on the rear main seal. On the crank, there is the main part where the seal goes around the crank which is about 10-12mm wide. Just to the outside of that is a slightly smaller/narrower neck about 5mm wide before the actual crank face. Sorry no picture. I can easily get the seal around this neck as it is about 2-4mm narrower in diameter than the wider part where the seal actually sits. But I can not seem to get the seal over the shoulders and onto the crank where it is suppose to go. Is there a special tool I am un aware of or does it just require a special technique unknown to the common man?
Help advice appreciated.