[FredM]

Once you pull the sump, you will get a better idea of where you are at after looking at the mains and big end journals and general condition of the crank.

As for the pistons being at the same level, that is from the throws on the crankshaft and it is normal for the pistons to be level, this depends on how the crank is sitting.

 

[FredM]

Without really trying, there seems to be a lot of parts for this model online, even came across a manual, do some googling mate.

 

[FredM]

I did some searching and I was looking at rebuild kits and am not sure how to tell the difference between diesel and gasoline kits. Thank you for replying

Sorry mate !!, we call what you call the oil pan a sump housing.

Not to worry though, I read some strange words to me from your side of the pond too.

When you get the "oil pan" off and pull the pistons and rods, you will see the difference in gas pistons as to diesel pistons, vastly different with a diesel engine piston being much longer and heavier built.