Timing and crankshaft pulley

CHRIS LANGE

MEMBER
2003 VOLVO S60
2.4L
5 CYL
TURBO
2WD
AUTOMATIC
100,000 MILES

In the process of doing a timing belt and water pump replacement. Had the timing marks aligned and when I was trying to get the large center nut off of the crankshaft pulley and the crankshaft pulley somehow turned about a 1/4 of a full turn while the top two pulley's did not turn because I had them locked into place. How and why did this happen? Could it just be that the pulley just turned and not the shaft? Do you think it could have bent or broken some valves? What should I do? Can I do anything? Also, not sure if it is relevant but I had the TTV solenoid off the top of the cam cover.

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
42,909 POSTS

Hey CHRIS,

The timing belt could have skipped some teeth allowing the crankshaft to move. Chances are the valves are okay. If you got the bolt loose manually move the crankshaft back into alignment and install the new timing belt. Here is a timing belt diagram to help you get it back together

https://www.2carpros.com/diagrams/volvo/s60/2003

Please let us know happens so it will help others.

Best, Ken