Tapage
Club 4X4 Panamá
Apparently the backing plate behind the cam gear needs to come off to replace the water pump, and to get the gear off you need to get a wrench on the camshaft to keep it in place. Followed this vid (and the FSM):
While I was in there I did check valve shim tolerances, which luckily were all in spec.
I hated that water pump job .. with all my guts !