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Making sure i'm on the compression stroke - Tacoma Toyota Cars & Trucks

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On the compression stroke all valves are closed therfore ie if you hold your finger over the hole you will feel a lot of resistance when the piston is coming up try this a couple of times until you are happy of the compressoin stroke.adrian.

Posted on Mar 16, 2011

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The compression stroke is when the piston is traveling UP and the intake and exhaust valves are both closed.

Intake: Piston going down, intake valve open, exhaust valve closed
Compression: Piston going up, intake and exhaust valves closed
Power: Piston going down, intake and exhaust valves closed
Exhaust: Piston going up., intake valve closed, exhaust valve open

Posted on Mar 16, 2011


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