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Old 12-13-2013, 07:42 PM   #1
cbacres
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Default Engine sludge removal - Aluminum

OK guys, what's the latest and greatest way/product to remove the thin tight sludge inside the aluminum parts on a car engine.

I'm replacing a oil pump on a Toyota Corolla, the timing chain and valve covers has that buildup on the inside that just seems to have to be mechanically removed.

Any good sprays that ou have luck with?

Don't care about being spotless, just want to the rud off while apart.

Thanks in advance
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Old 12-13-2013, 07:45 PM   #2
d.mcfarland
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Default Re: Engine sludge removal - Aluminum

Kroil is the hot new product over on Bob is the Oil Guy!
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Old 12-13-2013, 09:42 PM   #3
rockwithjason
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Default Re: Engine sludge removal - Aluminum

I have heard that diesel fuel does a good job of removing that stuff
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Old 12-13-2013, 10:15 PM   #4
Mike Miller
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Default Re: Engine sludge removal - Aluminum

http://www.automotiveforums.com/t940...t_seafoam.html
Run this stuff for a few oil changes.
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Old 12-13-2013, 10:16 PM   #5
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Default Re: Engine sludge removal - Aluminum

Last time I delt with fairly thick gunk, the weapon of choice was a putty knife.
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Old 12-15-2013, 05:49 AM   #6
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Default Re: Engine sludge removal - Aluminum

I would scrap it of my self. I've heard guys using steam cleaners and some use there disk washer with good results.
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Old 12-15-2013, 06:05 AM   #7
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Default Re: Engine sludge removal - Aluminum

We run BG 109 engine cleaner and compressed air to get even more of it out after running it.
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Old 12-15-2013, 06:46 AM   #8
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Default Re: Engine sludge removal - Aluminum

Why not take it to a machine shop and just have them hot tank the parts. Should only be a few bucks to have it done.
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Old 12-15-2013, 07:03 AM   #9
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Default Re: Engine sludge removal - Aluminum

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Originally Posted by Kevin54 View Post
Why not take it to a machine shop and just have them hot tank the parts. Should only be a few bucks to have it done.
You've got to be careful with that one, some hot tanks contain a caustic solution, (lie) that will eat aluminum. The best solution for cleaning aluminum is a machine called a Storm Vulcan jet washer, it uses a non caustic type cleaner and the parts come out looking like new. They can sometimes be found in a engine or transmission rebuild shop.

Lacking a commercial cleaning machine, a good soak in a degreaser, followed by a steam cleaner or pressure washer will get the aluminum clean.

Last edited by J Persons; 12-15-2013 at 07:10 AM.
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Old 12-15-2013, 09:06 AM   #10
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Default Re: Engine sludge removal - Aluminum

Thanks guys.
I've been tied up doing other things, but Ive had the parts soaking some diesel for a day or two.
Was also using putty knife and wire brush.
I picked up some Mean Green cleaner from the Dollar store, saw somewhere it was used, so I'll give it a try.

Let you know later tonight.
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Old 12-15-2013, 12:09 PM   #11
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Default Re: Engine sludge removal - Aluminum

Just scrape what you can and rinse it out and put it back together.
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Old 12-15-2013, 02:02 PM   #12
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Default Re: Engine sludge removal - Aluminum

Quote:
Originally Posted by d.mcfarland View Post
Kroil is the hot new product over on Bob is the Oil Guy!
Sure is. I've been using it the past few years, but that's more for when the engine is bolted together and slowly removing sludge. Great, great product.

Quote:
Originally Posted by cbacres View Post
Thanks guys.
I've been tied up doing other things, but Ive had the parts soaking some diesel for a day or two.
Was also using putty knife and wire brush.
I picked up some Mean Green cleaner from the Dollar store, saw somewhere it was used, so I'll give it a try.

Let you know later tonight.
I thought Mean Green, aka knockoff Simple Green is caustic to aluminum as well. Someone else want to help verify this?
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Old 12-15-2013, 03:58 PM   #13
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Default Re: Engine sludge removal - Aluminum

Go to this website www.kalecoauto.com and check out their engine scrub. You won't even have to clean anything before you put the block back together, just bolt it up and run this stuff!
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Old 12-15-2013, 04:19 PM   #14
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Default Re: Engine sludge removal - Aluminum

Are talking about cleaning the parts that you have removed like the timing cover, valve cover and oil pan? If so, I recommend oven cleaner then pressure washer. I have done this for years and there is no engine cleaner that has come close to the results I get doing this.

If you are talking about the engine it's self, I'm afraid you are on your own.
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Old 12-15-2013, 04:51 PM   #15
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Default Re: Engine sludge removal - Aluminum

Quote:
Originally Posted by tcianci View Post
Go to this website www.kalecoauto.com and check out their engine scrub. You won't even have to clean anything before you put the block back together, just bolt it up and run this stuff!
Putting abrasives into the engine on purpose does not sit well with me at all... Yikes.
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Last edited by coma13; 12-15-2013 at 04:55 PM.
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Old 12-15-2013, 05:16 PM   #16
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Default Re: Engine sludge removal - Aluminum

Cans of brake cleaner are good for anything open and exposed, for cleaning inside engine I always recommend pouring in a bottle of ATF it is high in detergents, let it idle and run for 15 min, some drive with it for a day or 2 but I am not brave enough for that. 15 min idle then change the oil has worked wonders for me, if it was really bad I would say repeat every oil change until happy with the results.

But that's just the method I prefer... 100's of options and opinions out there...
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Old 12-15-2013, 05:40 PM   #17
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Default Re: Engine sludge removal - Aluminum

Quote:
Originally Posted by coma13 View Post
Putting abrasives into the engine on purpose does not sit well with me at all... Yikes.
LOL, it was a joke. If you go to the site they sell stuff like blinker fluid, flux capacitor etc.

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Old 12-15-2013, 05:42 PM   #18
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Default Re: Engine sludge removal - Aluminum

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LOL, it was a joke. If you go to the site they sell stuff like blinker fluid, flux capacitor etc.

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Hahahaha. Gotcha. I'm on my phone so I didn't do much perusing. Everyone knows you have yo keep your blinker fluid levels up though!
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Old 12-15-2013, 08:05 PM   #19
cbacres
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Default Re: Engine sludge removal - Aluminum

Been busy cleaning.
The mean green seems to work ok, just have to do multiple times. Don't know if caustic to aluminum, already done when I read this post.

Soaked the pick up tube in diesel overnight, that worked pretty good.this was years of hard sludge in he screen.

Tried and true, scraper and wire brush.

I'll try the oven cleaner and pressure wash next time.

Thanks for the replies.
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Old 12-15-2013, 08:13 PM   #20
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Default Re: Engine sludge removal - Aluminum

Quote:
Originally Posted by d.mcfarland View Post
Kroil is the hot new product over on Bob is the Oil Guy!
Which of their products? Kreen?
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