By my calculations the engine would be in trouble if the camshaft notch aligned and the crankshaft was at 15 degrees before TDC - the intake valve is meant to open at 9 degrees after TDC - with a bit of elongation after 20,000 km chapter 05-215 in the FSM reckons this valve will open at about 11 degrees after TDC...

...seems to me the inlet valve would be open just as the piston was at TDC

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!