Engine Degreaser, What to cover up? Options

[JoKeRkId613]

My engine area is VERY dirty. There's a lot of dust and grease all over the place and I found a spray can of degreaser in the storage room of my house. The instructions say to spray everything and then turn the car on and leave it on for 10 minutes. It then says to turn it off and spray the whole thing with water to get the stuff off. How effective is the degreasing thing? Will I see a huge difference? My main concern is spraying the whole thing... I don't think I should spray the whole engine compartment. Some parts must be covered up before I spray the thing... What parts must I cover up that shouldn't get sprayed with degreaser and/or water???

ANY ADDITIONAL INFORMATION WOULD BE APPRECIATED :-)

[cmorty]

It's not normally sugested to get the alt. wet, but you can( as long as you dry it up properly, and not let the water sit).

Just cover the fuse box, alt., and distrib. You should'nt have to worry about the battery and it's terminals, or the plug wires and plug boots (as long as the boots are snapped in all the way, nice and tight)

Now keep in mind....when rinsing your bay, you DON'T want to over endulge on the spraying. I.E. : Firehose effect with water pressure. Your basic gardenhose pressure is all you need.

I hope this helps.