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Oh, Man! Then you don't know what it's like to have to clean every stinking nook and cranny in the engine bay (when dirty, especially after a rainstorm). Good for you, good buddy!
I'm sure someone will find fault with this method, but it works like a champ:
**NOTE** When I say spray down the engine compartment with the hose, I'm talking about very gentle, barely more than a spritz. The idea is to get the visible surfaces wet, not flood the electronics.
1. Start the car and let it idle for 5 minutes to warm it up and then shut it off.
2. Using a vinegar-based glass cleaner like Windex, amply spritz the beauty covers, radiator shroud, hoses, etc. The more the better.
3. Close the hood and go drink a beer.
4. Take your garden hose and wash off the glass cleaner. See note above.
5. Spray Armor-all or equiv. over those same surfaces. Avoid the belts and as many wires, etc. as you can. Use a lot on the fender covers.
6. Close the hood and wash the rest of the car. Keep the hood closed for at least 10 minutes.
When you open up the hood it will look brand new, trust me.
I got this tip from a well-known detailer who has won enough shows to make a believer out of me.
Great Tips. Thanks guys. Oh btw my engine isn't that filthy :P. I always keep the plastic parts clean. It looks like new till today. I just want to get to those hard to reach areas and the only way to do that would be by using water. So I wanted to know the correct method for doing so. Any other tips & tricks ?
I use compressed air to get to those hard to reach places.
Once it's clean you should maintain it. All it takes is about two or three extra minutes when you're finished washing your car. Just wipe off the engine compartment with a damp towel. Do this and it will always look new!!
Try this approach. Just be careful with hosing down the engine. Simple Green will really cut the grease where you should have to hose it down with a lot of pressure.
1. Use Simple Green...excellent de-greaser.
2. Cover the distributor and alternator with plastic bag.
3. If you're going to be using a lot of hose pressure also cover the throttle bodies and the top of the intake manifold.
4. Let the Simple Green setup for 10 to 15 minutes.
5. Finally, lightly rinse and rub down with some rags.