So did anyone ever get a full answer on this topic? I am in the process. I found it fairly easy, but a bit time consuming. Could be a day project or maybe two if you take your time.
Heres what I did:
1) Follow timing belt instructions to get to this point. Here's a link to GDE's timing belt procedure:
http://www.keepandshare.com/doc/1729864/timing-belt-installation-pdf-february-4-2010-8-50-am-1-8-meg?da=y*note* in the picture the intake and exhaust tools are in incorrect positions. The intake pin has an "I" on it and is the bigger tool.
*note* the timing belt idler pulleys are REVERSE threaded
*note* the injection pump gear may be in a different position then correct, this in fine, there are 3 possible "correct" positions, if you move it, just re-time it to the indicated mark and it will be correct.
*note* ensure you lock the cam gears with VM 1085
BEFORE removing cam bolts
2) Remove the cam gears by first locking the camshafts in the correct positions with VM 1052, VM1053 tools (following the timing belt replacement instructions). Then lock the cam gears in place with a VM1085 Cam gear locking tool
BEFORE loosening the camshaft bolts (otherwise the torque applied to remove bolts could damage camshafts or VM 1052/ 1053 tools).
3) Remove 3 13mm inner cover bolts, remove 6 8mm inner cover bolts (one of the 13mm ones is hidden just outside the boarder of the cover on the left, and one of the 8mm ones is hidden on the very top of the cover for a support bracket), and remove the inner cover.
4) After removing various hoses and the inner timing cover there are 3 bolts on the water spout (<-- just named it that, idk lol) that holds it to the water pump. 2 are easily accessible with a 8mm deep well w/ 1/4 in ratchet and the third with a 8mm wrench.
5) After removal of the water spout you can finally (barely) access the 2 13mm nuts on the back side of the waterpump. The front side are easily removed with a 13mm closed end wrench (these are extremely overtightened from the factory so use a good quality wrench that won't strip the bolt and a second wrench for leverage).
Thats it, just clean surfaces and replace the oring and gasket and you're on your way back together again.
- Mark