Degrease spraying the motor & waterproofing?

ROWEN,
mate all you need to do is pull of plugs at spark pulg end (one by one so they go back on the right plug) and hit them with WD40 at both ends, as weel unger the dizzy. Covering the dizzy is a good idea but it can cope with a splash as kong as its not direct. hit all ya electrics with WD40, and good opportunity to clean ya batteries, with boing water, this removes all grime and cleans terminals. Then a can of degreaser in each hand and go for it. Let it sit for 30-60 sec, in this time a small stiff bristle brush is good to remove built up grime, then get the hose or high pressure cleaner under there and drench the whole lot. Worst case seranio, if you get some water under the dizzy, not biggy, just take it off and dray it, and hit all the terminals with WD40 again. Not a bad idea to do this afterwards anyway, it will give you a better contact, and slow the buildup of crap.
Good luck!
Wayne-o

Howdy Ro,

As Wayne-o has said no problems doing what you said. I'd suggest that after you've cleaned down the whole motor spray everything under the bonnet with WD40 or similar to stop surface rust. It will smell a bit on you first drive as the hydrocarbons evaporate, but leaves a nice coating over everything to stop rust.

I always use the BP 99% liquid hydrocarbons,nothing better.
As wayno says they can take a bit of water and if they dont the wd40 or some time will dry them out.

I know it's all been said before, but don't forget to be careful if you are using a high pressure pump/cleaner. If the water jet is applied to closely to certain parts of the vehicle/engine, damage can result. eg. electrical components, certain plastic fittings, rubber hoses and belts, shafts protruding from seals (it's the seals that can be damaged - water penetration) etc. Take it easy.

Don't forget to cover the alternator too. Wrap it in a bag.

Rowen,
I use a degreaser called Simple Green which already has an anti rusting compound in the fluid, this stuff for me has always worked a treat and providing you don't use the hose full bore and force the water where you don't want it to go you shouldn't have a problem. I do as others and spray some WD 40 around the delicate electrical bits afterwards. Personally I've never bagged anything, I've had Range Rovers and they are the worst for water in electrics, so far all good.