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Old 01-08-2005, 10:19 AM   #1
fosgate769
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Default how to clean engine bay

I currently have my intake manifold and tgv housing off for work. Noticed that my engine bay is really dirty, whats the best way of getting all that dirt ect. off.
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Old 01-08-2005, 10:23 AM   #2
Perdue
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Cold engine, put a bag or something around your air filter, simple green, let it sit for a few minutes, then come back with a hose (some use a pressure washer) and spray it off. If it's the first time you're doing it, you might have to repeat this a couple times and maybe use a brush of some sort to get rid of the stubborn stuff.
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Old 01-08-2005, 02:12 PM   #3
Tim-E
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When I had my jeep I used to use two cans of Gunk engine cleaner, followed by two cans of brake cleaner and it always worked,,, still use it to this day on my wrx and it always comes out great


Later on
-Me-
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Old 01-08-2005, 02:19 PM   #4
STi-MAN
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i hear simple green works really well. yea coming from cleaning a honda engine bay the subaru one looks pretty intimidating.
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Old 01-08-2005, 02:50 PM   #5
pleue
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probably not the best to clean with the intake manifold off hehe. I warm up the engine for about 10 minutes, tinfoil the alternator just in case, spray with water, simple green, close hood, let sit 5 minutes, go over some stuff with a soft brush, spray clean, then dress the rubber. Some people spray anarmoral tire foam on all the rubber/plastic whch makes it look real nice, but not sure how good it is on rubber (drying etc.). good luck.
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Old 01-09-2005, 03:01 PM   #6
Honkey3k
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AWESOME CLEAN... iz teh baest
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Old 01-09-2005, 04:17 PM   #7
Uncle Ben
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Is the air filter and alternator the only things you should cover up?
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Old 01-09-2005, 04:37 PM   #8
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I'm not an expert but I normally use a hd cleaner (simple green,greased lighting or engine bright) warm or cold I normally don't cover anything. Spray and let it sit then brush or wipe or anything like that just scrub it up.. I then use a water based dressing after everything is dry. I used armor all or wd-40(it forces water out of tight spaces) but that's it and if you don't belive me this isn't a subie but mine is new so it's not dirty(my step daugters car) also put a spray and wax on the paint..I almost forgot that.



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Old 01-09-2005, 04:37 PM   #9
Golfa
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if teh alternator gets teh wat0r in it, you will lose, pm davenow for more info
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Old 01-09-2005, 04:39 PM   #10
holland_patrick
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I have washed my engine bay for 10 years in my jeep and NEVER replaced the alternator.
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Old 01-09-2005, 04:41 PM   #11
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I would cover up the fuse boxes as well, just to be extra carefull.

We use 303 Cleaner. It is concentrated and will not harm painted surfaces or plastics and rubber hoses. There are no fumes and it is non-toxic. Not to mention it is water soluble. Follow up with 303 protectant on your rubber and plastic.

Bryan

www.JnJAssociates.biz
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Old 01-09-2005, 05:02 PM   #12
Seeing StaRS
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+3

simple green works great
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Old 01-10-2005, 12:34 AM   #13
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Honestly, do a search.

This has been discussed hundreds of times and the same things have been said.

I have detailed hundeds of cars using a high concentrate cleaner and pressure washer and not once have I had a single problem. You don't need to cover anything up.

Its best to clean then engine while its warm because thats when the grease will still be loose.

Just do a search and you will come up with plenty of threads, there needs to be a sticky on this.

Here is mine after one of my cleanings and dressings:

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Old 01-10-2005, 06:00 AM   #14
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I've washed plenty of engines, and let me tell you that Castrol makes a great engine degreaser, that's if your engine is very extremely dirty, if not use Gunk. Gunk comes in a can which you can spray on,and by the way there are 2 kinds. One is a white can, which it is the normal cleaner, and the other, is blue and orange can which it leaves your engine with a armor all shine to plastic stuff in your engine bay, and doesn't leave your rubber hoses dry looking. Another thing is to cover the alternator with a plastic bag. Let me tell you that your alternator bearing doesn't like water, I've learned from experience, besides the alternator, nothing else needs to be covered. With that said, you will decide what you need. Since you have an 03 I don't think you will really need a concentrate cleaner.
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Old 01-10-2005, 10:07 AM   #15
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Another Simple Green fan here. +4

I washed mine yesterday.

Sprayed Simple Green on the engine, let it sit for a minute.

I covered the Apex'i air filter with a plastic bag.

Then I scrubbed the underside of the hood, then hosed the engine and hood off.

I then sprayed armor-all all over the engine and then closed the hood.

I washed the car at that point and dried the car off.

I then popped the hood and wiped down the engine to evenly distribute the armor all and remove the excess water.

Looks brand new every time...

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