Any ideas on how to clean out sludge in an engine... while it's out of the car? - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
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post #1 of 17 (permalink) Old 05-23-2003, 08:45 AM Thread Starter
 
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Question Any ideas on how to clean out sludge in an engine... while it's out of the car?

Hey guys, I know there is some mention of synthetics and even MMO to clean out running engines. Any ideas on cleaning out sludge in an engine while it's out of the car? Is there some chemical cleaner that you car squirt into channels, etc.?
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post #2 of 17 (permalink) Old 05-23-2003, 09:23 AM
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Call the dealership and ask them what they use.
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post #3 of 17 (permalink) Old 05-23-2003, 09:27 AM
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Use diesel fuel. That's what I used when I had to clean out the coolant/oil goop out of my caprice. Or, if you want a spray can, use carb cleaner or brake cleaner.
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post #4 of 17 (permalink) Old 05-23-2003, 09:46 AM
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Diesel works wonders to clean out sludge.

I once helped some one use it in a sludged up 1966 Ford 289.

Cleaned it out beautifully, you could eat off the inside of the block if you wanted.
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post #5 of 17 (permalink) Old 05-23-2003, 09:50 AM Thread Starter
 
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Just splash some in and use a brush?... Any specific techniques for oil passages?
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post #6 of 17 (permalink) Old 05-23-2003, 10:03 AM
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With my Chevy, I just poured a couple gallons in the lifter valley and it ran down through everything and out the oil dran plug. I repeated this until it ran out clean. I'm not sure about the design of your engine, so I'll leave it up to someone with second-gen experience.
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post #7 of 17 (permalink) Old 05-23-2003, 02:03 PM
 
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desiva, this may sound crazy, but I used Easy-Off oven spray. Spray it on, leave it on for 45 minutes, and the gunk then comes off super easy. I am almost done rebuilding my 98 2.7 engine, and Easy-Off worked 10 times better than carb cleaner, engine degreaser, anything. I would spray it into passages in the engine and later clean it with a wire brush.

Scott.
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post #8 of 17 (permalink) Old 05-23-2003, 02:10 PM Thread Starter
 
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solomd, i may try that in conjuction with the other method. hope the two don't chemically react and gunk up the whole engine...hehe. thanks.
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post #9 of 17 (permalink) Old 05-23-2003, 02:17 PM
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go with the diesel fuel method.
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post #10 of 17 (permalink) Old 01-03-2006, 09:16 PM
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i used easy off oven cleaner to clean the inside of a 2.8litrev6 buick engine after intake was removed. we sprayed 3 cans all over intake valley where lifters and pushrods were located and allowed to run down into oil pan and spray the heads exterior and interior. allowed to soak for 3/4 hour and rinsed well with hot water with drain plug on oil pan removed. refill engine with new oil and filter, start up and run for 10 minutes to get up to temp and drain oil and discard filter, replace with fresh oil and filter and repeat. if unsure, redo once again. i did this 6 years ago and car is still running with now normal oil pressure and very quiet. this apparently did not hurt anything. welder3
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post #11 of 17 (permalink) Old 01-03-2006, 10:31 PM
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'filler up with diesel!
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post #12 of 17 (permalink) Old 01-03-2006, 11:20 PM
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All great ideas but remember one thing. If any sludge that you disturbed gets clogged in the pick up tube or in any drain back holes it's all over.
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post #13 of 17 (permalink) Old 01-03-2006, 11:21 PM
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thats why fill it with desil it will disolve everything!
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post #14 of 17 (permalink) Old 01-04-2006, 10:48 AM
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Take it to a shop and let them tank the thing! It's kinda hard to fill a motor with liquid and let it soak....
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post #15 of 17 (permalink) Old 01-04-2006, 11:03 AM
 
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Hey, Desiva!
Been a while! Due to your help, my 3.2 conversion is still doing great!
We appreciate you, doing one of DiNet's first swaps!
(Still running the 2.7 ECU!)
Buy a soak tank if you're doing a lot of this stuff...
A "hot soak" was a hotrodder's first step in the old days..
{TRICKED AGAIN!!REAL OLD POST!}
thanks,OSM!

Last edited by alarkyokie; 01-05-2006 at 07:46 AM.
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