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FJR Motorcycle Forums
Technical & Mechanical Problems
Piston Hit Valve, spark plug melted
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<blockquote data-quote="ionbeam" data-source="post: 1063894" data-attributes="member: 277"><p>Since the piston has been hit hard enough to hole it, the crank really needs to come out and be measured for true, the crank bearings checked and the piston/rod/wrist pin/bearing assembly on that cylinder needs to be checked. Keep track of all the plane bearings, they need to go back in the same place. As seen in Patriot's engine, the only sure way to tell the health of plane bearings will be to use a Plastigauge kit.</p><p></p><p>I'm smelling toast.</p></blockquote><p></p>
[QUOTE="ionbeam, post: 1063894, member: 277"] Since the piston has been hit hard enough to hole it, the crank really needs to come out and be measured for true, the crank bearings checked and the piston/rod/wrist pin/bearing assembly on that cylinder needs to be checked. Keep track of all the plane bearings, they need to go back in the same place. As seen in Patriot's engine, the only sure way to tell the health of plane bearings will be to use a Plastigauge kit. I'm smelling toast. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Piston Hit Valve, spark plug melted
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