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Re: Need to know how to set the timing
Cylinder #1 set at TDC, compression stroke. Cam marks level with head, aligned with mark on cover, or if unclear where to mark the cam: SET Cam at point where intake valve has just closed and both valves are shut on cyl. #1, cam gear marks should start to appear more clearly to technician, along with corresponding alignment points. This is ballpark. Remember, on clockwise rotation, after cylinder #1 intake valve(s) are shut, the cam will continue to rotate 90 degrees and come to rest at a position in which both exhaust and intake valves are at their maximum lash point. (the most play) Hopefully if you get this close, you will decipher the marks that exist on your Bavarian machine.
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The m43 engine should be similar to both the m42 and m44. The cylinder head torque settings are 22ft/lb and 90degree torque angle, and another 90 degree torque angle. Make sure to wait approximately 10minutes before performing the 2nd torque angle.
The torque settings is more know as torque spec's, and it just means an exact measurement of how tight a paticular part is tightend. With a new engine, many differnt parts have differnt specs, but hands down the single most important thing would be the cylinder head to engine block torque. This is often done in a 3 step process, using a torque wrench, and a torque angle gauge. Are you planing on installing an engine yourself? I can get specs for you.