I ordered the manuals for this tractor, I had hoped they would be here yesterday, but no joy. I do not have time to wait any longer and was hoping someone could help me out. I was changing the head gasket and one of the studs stripped at 25 Ft/Lbs during torque down. I bought all new studs but have not seen the actual Perkins installation positions.(there are 4 different lengths and the parts breakdown does not specify position) I measured each one on removal but at least 2 were non std lengths. There were washers on about half of them and they are not specified per the build. It looks like the right hand side 3 studs need to be sealed against oil from the cam gallery to keep oil from seeping up to the head gasket. I also could not find the torque for the studs themselves. Any info would be appreciated. thx