I think we can assume there's nothing else wrong mechanically with the engine. 1 1/2 turns sounds like too much. You also have to adjust the valves in four steps. Each half revolution insures one quarter of the valves will be closed at some point.
Try this instead because you don't even have to know the firing order. Loosen all the rocker arms, then snug them down just enough to remove the free play. Rotate the engine a half turn, then snug down only those that have obvious looseness. Turn the engine another half turn and do that again, then one more half turn. That will get all the valves close enough for the engine to run.
Fashion a splash shield out of cardboard to contain the oil that's going to spray around and make it run back into the head. Most people use the cardboard that comes with valve cover gaskets. Start the engine, then on the first valve, back the nut off until you hear the rocker arm clicking. Tighten the nut just until that clicking stops. Remember that setting. Tighten the nut 1/4 turn. You'll hear and feel the engine misfire but that will clear up in a few seconds as the lifter bleeds down to self adjust. You don't want to continue too fast because the valves need to hit the seats to dissipate its heat. Tighten the nut another 1/4 turn, then wait for the misfire to clear up. Keep on doing that until the misfire no longer clears up. Back the nut off just until the misfire clears up. Remember, you were counting the total number of turns from where you started. Back the nut off exactly half that total. That will place the lifter right in the middle of the range it can self-adjust to. Do that procedure for each valve.
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Tuesday, November 20th, 2012 AT 12:36 AM