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I was wondering how clean I need to get the piston heads and the piston ring grooves? I cleaned one piston head and still can't really get the ring grooves totally clean. They are out of a 5s-fe. I have some parts cleaner that I left the piston head in for two hours but the grooves still aren't all the way clean, they are aluminum so I don't know if I want to leave them in much longer than that. I also broke an old ring and used that to carefully clean out the grooves. Here are some pics, let me know what you think.

Thanks,
Shane









 

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1998 T100 SR5 2WD
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14,846 Posts
A broken piston ring is usually used to clean the grooves. ;)

...or you could buy a tool to clean them with. :D
http://www.amazon.com/KD-Tools-KDT1722-CLEANING-PISTON/dp/B003YNFKCS

CLEANING TOOL FOR PISTON RING GROOVE 2 TO 5IN.by
KD Tools
Price: $21.99

According to a video on YouTube, a solution made from Simple Green and scrubbing from a stiff nylon brush got their pistons clean. ;)
 
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