Reaming is a definate recommendation. JimmyL is local to me and graciosly let me use his new reamer even before he himself used it. Like I posted earlier, 3 of the 5 GP holes were well-carboned up, pretty much to the point of completely surrounding the GP tips, hence my smoky,shaky idle. I'd suggest either buying one or finding someone local as gracious as Jimmy to borrow one from. You will definately get some serious carbon out of those holes. I actually ran the reamer in & out of the holes 2-3 times to get it all. Just coat the reamer with some bearing grease to catch most of the carbon. Before you install the new ones, have someone hold the STOP lever on the I/P linkage to shut the fuel delivery down and give the engine a crank for a few seconds to blow any loosened carbon out of the G/P holes before reinstall. As for anti-sieze on the threads, mine were original and they came out easily so I doubt I'll be replacing G/Ps again any time soon to worry about the threads..
Second one from the bottom on this link but the one Jimmy has seems much better, but you'll get the idea.
http://www.peachparts.com/diy/mb_tools/mb_tools.php?page=4
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Sharing my partner's 2012 Forte 5dr SX til I find my next 123 or 126..
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Do I miss being a service advisor ???
