This is exactly the problem I had. The rods have a stamped number or letter (can't remember which) on the outside of one side. Also make sure your pistons are in correctly. There is a #3 stamped on one side. These are all suppose to be on the same side of the block (again going from memory here, can't remember which side). Also when I assembled the bottom end on my engine, I also put a very thin film of grease on the crank plus the assembly lube. Now that I have this part all back together correctly, everything turns over by hand. It's stiff, but in a good way. If you are having to use too much force to turn it over something is clearly amiss.Did you mark the rod caps during disassembly so that they could be installed back on the same rod and in the same relation to the rod? I'm not familiar with those rods, but on many the cap can be reversed accidentally (180 degrees out of position) which will cause the problem you describe.
Can you forward me the instruction manual to rebuild an entire engine d722e?Hello,
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.
There are several of these online. Search by d722e. Some that come to mind are Carrier and SeaBox? or something like that. Also you can search for Tractor D722 and see which kubota tractor has this engine. You can then search for a WSM for that tractor (Work Shop Manual). There is a link in our Ultimate REAMD ME sticky in this forum on WSM'sCan you forward me the instruction manual to rebuild an entire engine d722e?