yanmar2010d
New member
All set to remove the head to have it checked out by a machine shop. The thing that got me started was a blown head gasket. I faithfully followed the shop manual and then removed a bunch of other stuff as the head stubbornly held on to the block. The 3 smaller head bolts and the 8 larger bolts are out (with 2 of those being nuts on studs). Intake and exhaust manifolds, injectors, water pump, multiple small bolts, small plate and grounding wire are off the back end of the head. There is nothing that should be holding the head on that I can see. When I attempted to lift off the head, I was only able to lift the front end (breaking the gasket seal) on both sides somewhere between 1/8 to 1/4 inch and eventually got a small gap the whole way back on the (driver's) right side, but the back left holds firm. I put a 1 inch thick piece of rebar on the lip that sticks out on that corner and levered against the loader and can rock the tractor that way, but it does not separate the head from the block. One of the two studs is at that location and if the nut was still on it, I'd expect the head to stay down this well, but it isn't and there is no apparent corrosion. I've been dumping WD-40 down that opening the last couple of days and that hasn't helped (not saying that the stud is the issue, but its proximity to the problem has me suspicious). I'm close to loading the tractor up and hauling it off to a shop just for this, which of course is the thing I was trying to avoid in the first place. Any ideas would be appreciated.
