Greetings all. 1995 volvo 850 glt. I need to remove the crank pulley in order to get the timing belt off. I tried to use an impact gun, I used some PB blaster on the rust and even used a torch to enlarge the nut in order to loosen it but still no luck. When I use a breaker bar the whole engine turns. It was suggested to me to use a vise grip or clamp on the camshafts, but this vehicle's cams are held down by the "upper valve cover" so only the sprockets stick out. Has anyone ever worked on a similiar vehicle or has advice on how to clamp down on the engine to prevent turning in order to remove the crank pulley? Any advice on this topic would be great. Thanks!!
(The air tank for the impact wrench is 150 psi, the torque on the bolt is 133lbs)

Yes, it can be very difficult to get loose sometimes. Here is a trick that usually works.

Get a long breaker bar and 6 point socket that fits the nut tightly. Slide the breaker bar down through the frame so it is touching the ground at the handle. Position it so when it swings up, it will contact the frame and nothing else it can damage. Go in the car and bump the starter and the bar will slam against the frame and break the bolt loose.




78 Corvette Pace Car For Sale-18k mi orig-Florida

Brilliant idea -- Im at of town for the weekend I'll try it and keep you posted. The engine hasnt been run in 2 years- should I lube up the cams first, or is one bump from the starter ok?
Thanks!!

I don't know what your asking about lubing but nothing is necessary. Just make sure the bar is on securely and not going to damage anything. It will move with a lot of force.




78 Corvette Pace Car For Sale-18k mi orig-Florida