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Old 02-15-2013, 10:29 AM   #1
Deliviox
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Default What are some methods to clean the engine bay?

I was wondering what are some of the ways people clean their engine bays. What products do you use and how do you apply them? Also any suggestions on what to use to polish and shine as well.
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Old 02-15-2013, 10:44 AM   #2
Mike05wrx
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i just put a bag over the intake and the alternator, and then lightly spray the engine bay, and then spray simple green on it, let it sit for a few, and then get in there with a toothbrush and loosen all the crap. then lightly spray it down and dry it. you can use armor all on the plastic parts to shine it up if you desire
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Old 02-15-2013, 11:04 AM   #3
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Thanks would like some other suggestions as well. And what I can shine the metal with
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Old 02-15-2013, 11:13 AM   #4
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Spray simple green over everything
Spray hose on everything
Let dry
Drive car.

Your Dodge car is a little different from our Subarus. In the Subaru, keep in mind that the hood scoop allows water in the engine bay every time it rains, so you really don't need to worry about using a hose and getting water on things. Just watch it around the battery.
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Old 02-15-2013, 11:18 AM   #5
thatderekguy
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And intake and alternator
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Old 02-15-2013, 11:18 AM   #6
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Cover intake/alternator/battery wire harnesses. Spray entire bay with scrubbing bubbles, have a beer, rinse engine bay. Win!
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Old 02-15-2013, 11:28 AM   #7
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How long would you let the scrubbing bubbles sit? And how long on the simple green?
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Old 02-15-2013, 11:36 AM   #8
Mike05wrx
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for simple green i'd say about 5 minutes or so
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Old 02-15-2013, 11:37 AM   #9
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Usually 5-10 mins, youll see when the scrubbing bubbles is doing its work it'll turn brown and run a bit. Some areas may need a little scrubbing, my engine bay didnt but im not sure how dirty yours is.
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Old 02-15-2013, 11:48 AM   #10
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Alright. Any suggestions on a way to shine the non plastic parts?
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Old 02-15-2013, 12:12 PM   #11
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You can apply Adam's In & Out to everything which is my preference, there are alternatives as well.

http://www.adamspolishes.com/p-517-a...out-spray.aspx
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Old 02-15-2013, 12:21 PM   #12
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Make sure the engine isn't hot but warm to the touch. If you can't lay your hand on it then it's too hot to wash.
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Old 02-15-2013, 12:34 PM   #13
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Also don't get and harsh degreasers on bare aluminum parts. They will start to corrode almost instantly.
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Old 02-15-2013, 12:43 PM   #14
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So just stick with sinple green? Nothing like purple power?
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Old 02-15-2013, 12:54 PM   #15
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Before Scrubbing Bubbles:



After:

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Old 02-15-2013, 12:56 PM   #16
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Simple Green, Scrubbing Bubbles, either will work. Don't think into it more than you need to, you'll realize when you clean it that its a really simple process. I personally allow my bay to dry a bit before turning the car on. Air compressor, leaf blower, etc lol.
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Old 02-15-2013, 01:04 PM   #17
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Ok well I have scrubbing bubbles so ill just do that and see how it goes
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Old 02-15-2013, 01:23 PM   #18
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Quote:
Originally Posted by p951951951t View Post
Also don't get and harsh degreasers on bare aluminum parts. They will start to corrode almost instantly.
Corrode, no...however, it could cause some staining or oxidation if overly aggressive or allowed to dry.

As for cleaning, I have no experience with scrubbing bubbles. I use APC plus and an assortment of brushes to clean the bay. Use a metal polish to bring the shine back on metal parts and a dressing to darken plastics.

In reality it is all pretty straight forward, just use common sense and don't spray water down the intake tube or directly into the alternator.
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Old 02-15-2013, 01:37 PM   #19
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Alright ill keep that in mind does the type of netal polish naatter since the heat of the motor
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Old 02-15-2013, 01:39 PM   #20
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i just washed my engine bay. it's beautiful on Long Island today. only took me about 15-20 mins. covered the intake and the alternator
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Old 02-15-2013, 01:51 PM   #21
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Quote:
Originally Posted by Deliviox View Post
Alright ill keep that in mind does the type of netal polish naatter since the heat of the motor
The heat of the motor doesn't have much to do with it. A metal polish contains abrasives or chemical cleaners to remove imperfections from a metals surface. It does not leave a protective layer on the surface to be affected by heat, I believe this is what you mean; correct?

What exactly are you polishing?
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Old 02-15-2013, 02:28 PM   #22
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Quote:
Originally Posted by AspenScoob255 View Post

The heat of the motor doesn't have much to do with it. A metal polish contains abrasives or chemical cleaners to remove imperfections from a metals surface. It does not leave a protective layer on the surface to be affected by heat, I believe this is what you mean; correct?

What exactly are you polishing?
Correct and I just want it looking good for a meet
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Old 02-17-2013, 12:56 AM   #23
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The way I detailed engines when I worked at a detail shop was to first lightly spray the engine bay with water. Spray degreaser on everything, I never worried about covering anything in the engine bay. If needed, I'd hit the real dirty areas with a brush, then spray the engine bay down. The trick here is be smart about it, use HOT/WARM water, and if you only have access to cold water spray from a distance. Use the "shower" setting on hose head is avail.

I always left the engine running. I've done hundreds and hundreds cars like this, never an issue on anything, this includes everything from Honda's to Mercs to Maserati's. Many cars were repeating customers and never saw any ill effects from this method. After you've rinsed off the engine, let dry and then apply a nice engine dressing.

Side note: I've always thought it's funny when people insist about covering components and insisting the engine cannot be hot when washing. Has no one opened their hood after driving in a thunderstorm? Or a snowstorm? Or after off-roading? Your engine is completely covered in water and mud. Trust me your engine bay is way hotter when running at high RPM's with the hood closed when that freezing snow is being thrown onto your engine. Again though, this all requires common sense, if the engine is having electrical issues or trouble running, would I do this cleaning method? Of course not!
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Old 02-17-2013, 09:07 AM   #24
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I just did regular car soap with a bucket and a rag.

Covered the alternator and just was out there cleaning and talking to friends.

Before:


After:
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Old 02-17-2013, 11:51 AM   #25
Jimmy4thenguyen
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I use APC (the big bulk container from auto geek) and dilute it 4:1 for engines and 10:1 for interiors. PM me is you have questions!
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