Originally Posted by geolab

There is absolutely no harm in doing so, at the contrary.
The fan takes in dust, debris, with a good squirt of polution, and deposits a thick layer of suit on the top of the engine. With a little moisture, this stuff sticks hard, especially between the cylinders, and top cylinder fins.
When I changed my alternator, I cleaned out all the gunk.
When you spray in the fan blades from below, the water goes directly on the top of the engine, and goes down between the cylinders.
Ever since, I stick a hose between the bottom fan blades for a couple of minutes each month (ENGINE COLD).
The alternator will not get wet because it is englobed in the core of the fan, even if it gets wet, there is zero harm.
check the before picture below.

Originally Posted by ASH.PALIN

Hi Gents

While we're on the subject what's the best gear to clean the varioram intake with and then protect it?

Thanks

Ash