The phenominum of tramp aluminum is kinda hard to explain .It just kind of pulls off a little a time and piles it up .Like mud really .
The sooner people get over that idea they have to have the saws cranking on at 14000 rpm out of the wood the less saws will get siezed up . It may sound big...
A point to ponder .The piston is essence is nothing more than a slide action valve of sorts which rides on a very thin layer of oil .Once it breaks the surface tension of the oil in this case from running lean ,failure is immanent .
Look at the right side of the picture .There is a chunk of tramp aluminum right above the ex port .That's where it piled it up from running lean . Kinda like mud on your feet ,it just keeps picking up more and more tramp aluminum as it siezes up .
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