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Old 09-24-2019, 11:05 AM   #12
MAG
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Join Date: May 2010
Location: Austin, Texas
Posts: 925
Default Re: Can the TDC pin be off by 90 Degrees?

""How do you know if the piston is at the top for the compression stroke?""

The INTAKE Valve has closed completing the Intake Cycle. When the piston comes up and reaches the top both INTAKE and EXHAUST valves are closed compressing the fuel mixture.
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