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Old 10-08-2007, 02:52 PM   #1
upjeeper
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Member#: 150205
Join Date: May 2007
Chapter/Region: MWSOC
Location: Madison, WI
Vehicle:
2002 WRX
Sedona Red

Default how to clean out metal particles?

im rebuilding my 2.0-2.5 hybrid this next weekend but need to get the metal particles out from when the previous rod bearings went out. can you guys give me any tips to clean the metal pieces out of the block and probably the oil lines as well.

do i just use a garden hose and dry it immediately after?

thanks
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Old 10-08-2007, 03:26 PM   #2
SloRice
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Member#: 44351
Join Date: Sep 2003
Chapter/Region: MWSOC
Location: Cincinnati, OH
Vehicle:
2004 Mitsubishi Evo
701whp 9.91@146

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I went through about 5 cans of brake clean cleaning out my heads. Then I used a compressor and air dryed them. I also replace the oil pan, oil pickup and oil cooler.
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Old 10-08-2007, 06:03 PM   #3
shvrdavid
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Join Date: Apr 2005
Location: Central Pa.
Vehicle:
2005 Sti
4094R Twin Scroll

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The best way to get all of it it out is a combination of a few different cleaners...

Like SloRice said, brake clean and an air compressor will work, and it will break down the oil in the passageways, but it wont remove all of the metal...
I would go a step further than that...

I would mix up some Tide and water, then flush it out with that as well...
Tide is a surfactant or tensides type cleaner, it will lift the remaining metal particles out of all the porous areas of the passageways...

These type of cleaners lower the surface tension of the water, and also suspend the particles so you can flush them out...

Remove as many passageway plugs as you can, and you may want to get some brushes to use in the passageways...
Scrub them out, then do it a few more times to be sure you got all of it out...
You can get most of the brushes at Walmart, just buy a gun cleaning kit and the proper size brushes for the passageways...

You need to ensure that you get all of the debris out of the passageways before you reassemble anything...
If you cant get all of it clean, take the castings to a machine shop an have them cooked out...

It will be money well spent to ensure that debris from the last build doesn't circulate around in your new build...
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Old 10-08-2007, 06:32 PM   #4
0to60 man
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my friends brother used some laundry detergent tide sounds good. then he used i good strong pressure washer to blast anything out and finished it off by using a circular polisher adapter on a drill... the polisher was made of cloth (i think) and that is probably what i would do...
gun cleaning kit sounds good tho.
do you guys think i should do somthing like that for the block of an older ej251? i mean it will make the engine better wont it? (ive asked a few friends some say yes others say it will just hurt it i dunno how it would tho)
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