Guido you may want to look at the OP again. This motor has not been recently worked on but has a slight oil leak which he wants to try to eliminate by torquing the head bolts. Though it is not likely to work, I believe that he has very little to loose so why not? I think that most of us here agree that after a few years of working and heat and cool cycles that nuts and bolts in use pretty much anywhere on pretty much any machine that heats up with use will tend to get a little stuck or, if you will, held by more than just the normal stretch of the bolt. So when you combine the friction added to the stretch, it is highly unlikely that any bolt will break loose and move one degree of clockwise rotation. Whereas if bony first eliminates the added friction with just a 3-4 degreee counterclockwise movement, and then goes to torque spec. clockwise, he will probably gain a little here and there and possibly even stop the leak.
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Today's Featured Article - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
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