2002 S60 Crankshaft moved during cam seal replacement

[kurticus]

I am currently changing my cam seals. I started by rotating the engine CW to the marks and then went past 90 degrees and the back to the marks CCW. I had all of my timing marks lined up including the top cam marks and the crankshaft timing mark. I installed the cam shaft locking tool. I attempted to pull the crankshaft pulley and it started turning. It hit a stop. I stopped. I turned it back to where I thought it was but now it is 3 teeth off at 10:00. I can't get it back to the mark because it hits another stop at the 10:00 position. It will go CCW 180 degrees so I can't get back to the mark. I need that 3 teeth to get it back aligned with the crankshaft mark. Will it bounce back when I install the belt and apply tension and then remove the locking tool. How do I get it aligned before I remove the locking tool. BTW, I never got the pulley off. I removed the cover around the sprocket.

Kurticus
Country: United States
Make: Volvo
Model: S60 2.4
Year: 2002

[kurticus]

Fixed it. Took off locking tool and lined up crank then lined up cam sprockets. Put it all back together and then saw it was a tooth off. Had to reinstall locking tool and line up the crank and paid close attention when tightening up the tensioner. all is good now with the timing but i still have the original knock that my son acquired before the seals went out. I don't think he changed the oil in the last 2 years and just kept adding. I'm worried he ran it out of oil. I did an oil change and found some metal shavings in it. Small but they are there. Not good...

[oragex]

I remember that when the tensioner is loose, the exhaust camshaft moves front a little, about half a teeth. Once the tensioner is adjusted, the cam goes back by itself.

As for the shavings, sometimes the PCV gets clogged and causes sludge inside the oil pan, which can damage the rod bearings after a while.