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Old 11-09-2012, 06:06 PM   #1
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Default .12 nova

.12 nova normal engine when new have pinch feeling at the top ,

What would cause after about 3 gallon for the engine too have 2 pinch when you spin the flywheel go up get stuck normal and then stuck again before piston coming down??
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Old 11-09-2012, 06:39 PM   #2
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Do the crank just spins effortlessly when the piston is stuck at the top dead center?Maybe its just play in the conrod.
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Old 11-09-2012, 07:15 PM   #3
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When you can turn the crankshaft a lot in the upper position before feeling a pinch again I would say a lot of play on the crankpim. You can see it when removing the engine backplate.
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