Valvetrain

Valvetrain

Note:
^ Cylinder heads with cracks between the valve seats, or between the valve seat and the spark plug threads, can continue to be used without reducing the service life, as long as the cracks have a width of max. 0.3 mm, or only the first 4 threads of the spark plug threads are cracked.
^ After installing new valve lifters, the engine may not be started for approx. 30 minutes. (otherwise valves will strike pistons), then turn crankshaft two revolutions.