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Old July 23rd, 2009, 01:11 PM   #1
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Whats the best degreaser for cleaning a engine

I am getting ready to take my heads off 4 a valve job..I am not worried about cleaning the heads because the machine will take care of that during the valve job...But i Really want to clean up the rest of the engine to match my newly redone heads...So whats the best degreaser out there that will just disolve the sludge,,dirt,,,thanks
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Old July 23rd, 2009, 01:20 PM   #2
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Personally I am not aware of an effort free cleaner. I usually use a putty knife to get the heavy build up and grunge off and then use some gas with a cruddy paint brush. If you want fancier than that use carb and choke cleaner in a spray can, or brake cleaner. Others will likely have other methods, but this works for me. BTW be sure to lay out some drop cloths and cardboard cause this is MESSY.
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Old July 23rd, 2009, 01:55 PM   #3
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BTW be sure to lay out some drop cloths and cardboard cause this is MESSY.
X2

No matter what's used it's gonna make a mess. I've used kerosene,oven cleaner, simple green in the past all with pretty good results. A pressure washer with hot water has also worked out good too after soaking with oven cleaner.
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Old July 23rd, 2009, 02:02 PM   #4
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clean it before you take the heads off. scrape the heavy stuff off and high pressure wash it then i also use gas to finish. and remember to be careful with gas. i use oven cleaner when the engine is out of the car but this stuff will take the paint and every thing off. if you have an accident then you may have paint removed where you don't want it to be.
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Old July 23rd, 2009, 02:13 PM   #5
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I suggest either Wal Mart brand engine degreaser (cheaper than auto parts store) or oven cleaner.
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Old July 23rd, 2009, 02:14 PM   #6
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Kerosense works for me.
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Old July 23rd, 2009, 03:56 PM   #7
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I am getting ready to take my heads off 4 a valve job..I am not worried about cleaning the heads because the machine will take care of that during the valve job...But i Really want to clean up the rest of the engine to match my newly redone heads...So whats the best degreaser out there that will just disolve the sludge,,dirt,,,thanks

Just remember whatever cleaner or method you use clean then clean again and then when you think it is clean, clean it one more time.
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Old July 23rd, 2009, 05:27 PM   #8
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hmmmm, with the heads off, I don't think so. If the heads r off, cover/fit all bores with clean rags, try to seal with plastic to kept dirt out a bit. I would use kerosene & good parts brushes. Clean/rinse/clean/rinse, after done, uncover & wipe bores/ use shop vac in bores. When u put the engine back together change oil/filter then after a few hundred miles chang it again. PS, I like kerosense because it cleans, it rinses, it's oil base and it's cheap, like me. Later, Ken
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Old July 23rd, 2009, 09:38 PM   #9
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I will clean it with the heads on..I am going to use kerosen because I have a couple gallons of it already....I bought a nieghbors small plasitc pool to put under the car to catch the gunk,,,ect. Worth the whole 5.00 I gave for it....So whats the best way to apply it..Just brush it or spray it on....thanks
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Old July 24th, 2009, 06:52 AM   #10
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Since you are using kerosene just make sure you clean it in your drive way and make sure your buddies don't come up and chat while smoking.
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Old September 14th, 2009, 09:07 AM   #11
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How about removing first the large grunge, then use a degreaser, like Super Degreaser or Greased Lightning; I would stay away from the flammables, like kerosene.

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Old April 25th, 2010, 09:34 AM   #12
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Low effort degreasing

I was thinking about this thread when I decided to start cleaning my nasty Ford engine...
Engine temp gauge still said 140* a few hours after I came home, so it was a perfect temp for cleaning.

I bought two cans of Gunk for this project.
Before gunking, I hosed down the cement under the car and kept it wet with water throughout the process.
I started at the left rear of the engine / tranny and circled around to the right rear, spraying Gunk only, in a stream to help blast away the grime.
I used a toothbrush only on the valve cover and one thick area right at the thermostat housing. Did not even get my hand dirty...

I let it soak a few minutes, then repeated the same application from LR to RR.
I repeated soak and spray again steps again until the first can was empty.

I got out the water hose and used the jet stream position on the nozzle to wash the crap off. I kept spraying under the car also to wash the nasty stuff away. (Ironically, I did this on "Earth Day"... )

I will do this again this week after i get home when the engine is warm. I will use the other can of gunk and some other cleaners for other parts of the engine.

Even though the "environmental friendly" degreasers will work, nothing seems to beat Gunk. I always believe that when cleaning something off, it is best to dissolve it with it's base ingredient. In this case, it is petroleum! Applying to a warm (not hot) engine really helps, too!

Below are some before and after pics.
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Old April 25th, 2010, 12:00 PM   #13
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Rob,

I glad you celebrated Earth Day that way. Nicely done. [as usual]
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Old April 25th, 2010, 12:58 PM   #14
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i use less intense cleaners. preferably simple green.
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Old April 27th, 2010, 04:50 PM   #15
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I have always had good luck with foamy gunk and a toilet bowl brush AFTER scrapping off the thick stuff.
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Old April 27th, 2010, 08:48 PM   #16
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So whats the best degreaser out there that will just disolve the sludge,,dirt,,,thanks
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Old May 17th, 2010, 05:32 PM   #17
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Fire is a great degreaser , LOL ,JK dont try it at home.
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Old May 17th, 2010, 08:58 PM   #18
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I've used Simple Green or Castrol Super Clean with excellent results. I have an asphalt driveway, so I will not use Gunk. Even when I keep it wet, it will still stain it. I do like Gunk though, if I could clean it someplace else other than my house.
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Old July 19th, 2010, 08:41 PM   #19
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i use less intense cleaners. preferably simple green.
right,,i think this would work..i also tried kerosene as degreaser for my Front Shock Absorber and it works great..
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Old July 19th, 2010, 10:52 PM   #20
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hands down the best is oven cleaner,,,Spray it down with oven cleaner....The spray it off with a pressure washer the next day...
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Old July 26th, 2010, 12:58 AM   #21
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http://www.autogeekonline.net/forum/...degreaser.html

http://www.autogeekonline.net/forum/...degreaser.html
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Old July 26th, 2010, 06:04 AM   #22
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Easy Off Oven Cleaner. be careful of painted surfaces
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Old December 5th, 2010, 07:48 PM   #23
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I know I am real late on this but...I used driveway degreaser. I don't know what is different from engine degreaser but I have found all driveway cleaners are the same.
It worked great and it cleans concrete grease stains as well.
Save old tooth brushes..they are great for tight spots.
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Old December 5th, 2010, 07:48 PM
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