Mep-802a water pump question

[Xlandscaper]

Does anyone know how to stop the engine/water pump pulley from rotating while tightening up the water pump/fan main bolt? I mean I can do it with a pipe wrench but that would obviously leave marks and possibly damage a new water pump, there has to be a way to keep the pulley from turning? Anyone have an idea?

 

[DieselAddict]

I use a pair of vice grips with an old belt. Put the belt around the pulley and pinch it together with the vice grips. It will take a couple of tries to get the hang of it. Then you hold the vice grips and snug up the pulley bolts. They don't need to be super tight.

 

[Guyfang]

Indeed, you do not need it Man Mountain Dean tight. The direction of travel for the water pump insures that it should not loosen itself.