...it took 32 hours to change the tank , but it did snowball into lots of other repairs and problems along the way , the inside motor mount bolts were frozen up and I had to get a sawsall with a long blade and cut the bolts thru the rubber mounts ,inside the rubber is a coned metal spacer which was hard metal to cut , the old tank was able to come out fairly easyby bending it but the new one would not go in with out removing a block bolted to the frame which holds the tank down , three large bolts hold this block in , one of them is behind the boom cylinder so the wheel had to come off and the cylinder unpinned at the bottom end to access the bolt , while the engine was out I found the intake manifold gasket was broken , I could see a gap between the manifold and the head and the engine was sucking dirt right into the engine , to get the intake off you had to first remove the exhaust and turbo and 5 of the 8 inverted torx screws which holds the manifolds on stripped even though I have spline drive sockets , had to loosen them with a chiesel and hammer , also changed the valve cover gasket , all the turbo gaskets , belts and two travel motor hoses , getting the motor back in by your self is rough , I had forks on a Bobcat and a chain tight over the engine and it would not go far enough in beforethe fork was hitting the frame of the machine even living dangerously with the chain at the tip of the fork , so I found that the boom safety stop isn't really long enough to have the boom all the way up so what I did was make a small extension piece of boom stop out of a old stop , raised the boom higher with another machine and put the extension on the cylinder along with the original stop , after doing this the crossover tube between the boom cleared the top of the engine and I was able to hang a chain off the fork and get the engine farther into the machine and hook a come a long on to the pump and pull the engine into place , tightening up the front motor mount bolt on the left side was pretty hard , my buddy at Bobcat said there was an access plate on side the machine to get at it , not this one , a short rachet wrench and a pry bar one click at a time was the only way I could get it , the a/c , rear aux hydraulics and two stage pump plumbing really added to the problems of getting everything back into place -----------I did learn one thing , I never want to do that same job again