Join Date: Feb 2010
Drives: 2004 Optima 2.4 EX, 2005 Yamaha R1 (street) 2001 GSXR 1000 (track)
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You're on the right track. The cams do always jump around, especially on bank one (firewall side). What I do is before I remove the timing belt (i know it's too late for that now), i get everything timed. If you look through the cam sprockets onto the cylinder and head cover, you'll see a couple of threaded holes cast into the head. What I do is put a bolt in that hole through the cam sprockets, and use some pretty big washers. It holds the sprockets in place without some bulky tool being in the way while I'm trying to work. I only do this on the bank 1 sprockets for two reasons. 1) These two cams move on their own way to easy, where the bank 2 cams don't, and 2) It's easy to set the belt on the front ones. Once that is done I gently clamp the belt to the sprockets with a lightly sprung, soft jawed clamp (Harbor Freight). I always set the crank first, and place a stubby flathead screwdriver between the belt and the casting for the timing cover bolt threads directly below the crank sprocket. This prevents the belt from falling off the crank. Set the idler, then the first cam, then I clamp the belt. Set the second and clamp that too, and continue in this fashion. It's worked for me every time. Another thing with this belt job, you need a special tool to properly adjust the preload on the tensioner pulley (the 2 tiny little holes near the primary 14mm bolt head right on the pulley).