[sadyone]

Sorry if this has been covered before, but can anyone speak to rotating the crankshaft independent of the camshafts. I was following instructions trying to find TDC on #1 with the old belt on and rotating crankshaft by hand using pully bolt. Got about 1/2 turn or so in and realized the belt wasn't moving the camshaft sprockets. Apparently it was stripped out behind crankshaft sprocket and I didn't notice. So without knowing exactly how far I moved one without the other, and given this is an interference engine and I'm not super knowledgeable about the inner workings of my motor, what do I have to do to safely line crankshaft up with cams so no valves strike piston head, and find TDC of #1 from there (that I can do, but am afraid to move things anymore until someone smarter than me chimes in. Thanks again!

 

[sadyone]

forgot to add:2001 X Vg33e manual tranny 4x4

 

[beef tits]

Set your cams at TDC, there should be a mark. Then I would rotate the crank in either direction until cylinder #1 is at TDC. Check this by putting a long screwdriver in your spark plug hole (#1 ) and watch for the screwdriver to go up and down. At the highest point, you should be at TDC. This should also line up with the mark on the crankshaft.

If you rotate one direction and have any resistance (assuming belt is not attached) stop and go the other direction.

With belt attached, you'll get rotational resistance from cams/valves.

Keep in mind, you get two rotations on the crank for every one on the cam. This won't effect TDC, however when it comes time to set your ignition timing, make sure you aren't 180* off or you will drive yourself mad getting the truck to start.

Hope this helps.