The trouble is when I turn the engine over by hand to adjust the valves. When I turn the engine the cam with flip from the point of least friction to point of least friction. This is happening because the tensioner is not keeping pressure on the chain as it should.

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1998 Mercedes E300TD

1983 Mercedes 240D Turbo, 131bar injectors, Cosworth intercooler and 63' Ford Falcon radiator, Ardic Parking heater, Headlight wipers, Best 38.6mpg.

1973 Saab 96 Rally Car, 1.8l V4 with all the race bits