You mentioned cam bolt.... I don't think you're supposed to use that to turn the engine over if that was your plan? IIRC you can "tighten" the cam bolt by using it to turn the engine over? PS pump is also a bad way to turn the engine over... I know it's harder but turn the crankshaft bolt to rotate the cam so you can check the valves...

P.S. Crankshaft is a 27mm socket... a deep socket fits nicely on the wrench and doesn't hit the fan... 27mm is also used on injectors so you can use it elsewhere besides just the crankshaft...

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'98 E300 Turbo "Juliette"
'85 Federal 300TD