Thread: So I was pulling the VANOS off

Mine wouldn't move enough with the pin in place to allow the lock to drop into place. I also frequently checked the timing marks to make sure it remained TDC. Plus the exhaust cam sat perfect, it was only the intake cam that was off so I opted to loosed the cam to cam sprockets and allow the intake came to rotate CC so the lock sit correctly. I am going to take ScotcH's advice and verify or re-time the engine Per Dr Vanos'...

Quote: Originally Posted by bmwpowere36m3 It shouldn't technically matter, because if BMW allowed for such play in the lock-pin then its function is pointless. I the idea is to prevent the engine from rotating past TDC while doing your adjustments. If you constantly check and adjust to TDC (0|1 mark) then you can do the job without the pin. So I think it's just part of the "play" or tolerances allowed for in timing...

Quote: Originally Posted by ScotcH Right ... you need to line up the mark on the timing cover on the front wheel .. the 0|1 mark. Don't rely on the pin to be perfect TDC! This is part of the timing process, so I assumed it would be followed ... doesn't hurt to point it out though! It shouldn't technically matter, because if BMW allowed for such play in the lock-pin then its function is pointless. I the idea is to prevent the...