Have a Car Question? Ask a Mechanic Online.
I bought the GM timing tool mentioned in the manual. So yesterday I aligned the cam sprockets to the marks on the head and the crank pulley to the mark at the bottom. Installed the timing belt and set the correct tension. It said to rotate the engine a couple times. I can only get it to rotate 1/4 turn either direction? The head was off for 5 years, but the vehicle sat in my garage, not outside to rain. I don't think I am hitting the valves. Checked several times and did the timing belt a couple times just to make sure I had it on right.
It was already sitting close to TDC on the no.1 when I pulled the head off and I was able to rotate it a little to align the marks. I never fully rotated the crank.
Right, So in the diagram you sent me. I align the crank gear that the timing belt rides with the factory marks on the bottom. I placed a wooden dow in the no.1 cylinder and rotate the crank back and forth to make sure it was at tdc. So I assumed everything was aligned correctly. The cam sprocket marks align with the mark on the cover as shown. But the next step was to rotate the engine 4 turns to verify the marks re-align. But when I rotate the crank with a breaker bar. It goes only a 1/4 turn. Do you think some sludge on the cylinder wall is keeping me from complete rotation. I appreciate you being patient with me. I just was able to get to the work last night!
I will spray the cylinders with PB and let them set for a couple days. Hopefully that does the trick. I will let you know if it works.