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Old 04-19-2010, 02:03 AM
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Pistons scotch brite

Hi,
I have the 454 all the way tore down and the pistons have a build up of carbon that got nasty because it sat outside for awhile. I had a machine shop guy look at it and he said to soak it. I've been scrubbing with tooth brush and they look better but can I use scotch brite (green pads) to lightly scrub the tops of the pistons? I of course would rinse with diesel to get shavings off before assembly.

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Old 04-19-2010, 02:20 AM
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To clean pistons I usually use gasket remover. Then go over it with fine grit sand paper, I also use it to smooth and contour any sharp edges on the piston tops.
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Old 04-19-2010, 02:23 AM
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So If i can use sandpaper on the top then I sure as heck can use a scotch pad right? Cause thats what I've got... If I used the scotch pad that I bought for it I could have it lookin new but if I dont its gonna look old.
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Old 04-19-2010, 02:26 AM
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I meant to say in the previous post yes you can use a scotch brite pad as well. Seafoam and a scotch brite pad work well to clean piston tops.
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Old 04-19-2010, 02:29 AM
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Should I stay away from the sides with the scotch brite or is that okay too? What do you use to get the ring grooves?
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Old 04-19-2010, 03:10 AM
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I wouldn`t use anything abrasive on the side of the pistons such as the skirts. To clean the ring grooves I use gasket remover in the spray can and let it soak about a hour, then use a set of piston ring land cleaners. In a pinch when I didn`t have any ring land cleaners I used a old piston ring I broke in half.
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Old 04-19-2010, 06:23 AM
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The best thing I've found, bar none, to get ALL the carbon/crap off the pistons (even inside the ring grooves) is a gallon can of Berrymans Carburetor Cleaner from Auto Zone. Granted, you can only do 2 pistons at a time, but the end result is amazing...with NO work or mess...
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Old 04-19-2010, 08:12 AM
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X2 the carb cleaner, it works fantastic. If you use the Scotch Brite pads or sandpaper make absolutely sure you clean them very well with soap and water to remove all traces of abrasives.

Vince
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