I started the water pump and timing belt service as outlined by nfpgasmask here: http://isuzugeek.org/howtos/tbelt/tbelt.htm

Everything was going swimingly - rotated the belt several times and ligned up the pulley marks on each side and bottom, everything lined up to a Tee. Even the dotted line was in the right place. Removed the tensioner and expected the cam pulleys to pull towards the center (12 O'clock) - instead they pulled apart. So the passenger side pulley is now at about 8 O'clock and the driver side pulley at almost 3 O'clock.

My first instinct was to pull them back to the marks, aligning pulley, line and mark only pulling them together instead of apart as indicated in the write-up - but now I'm hesitant to do so as it could make things really off. Thoughts on that or should I just try it?

-- John