David,

So sorry I didn't get to this sooner. I've just started a new job, so I've been really busy and haven't been online in over a week. I went through the same B.S. when I tried to replace my own timing belt a while back so I know what you're going through.

The bottom line is, the Isuzu manuals are wrong. The TSB# IB00-S005 explains the correct procedure and I've uploaded the scanned images into my gallery. I hope this helps. Please send me an e-mail (not a PM!) if you have any other questions that I can help you with.

Kyle