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Rotate Engine for Valve Adjustment 2

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    Part of the video series: Car Maintenance: Valve Adjustment

    Summary: During a valve adjustment, a mechanic must rotate the crank shaft to align each cylinder in view. Watch an automotive service excellence (ASE) certified master mechanic rotate the engine cylinders in this free video on car maintenance.

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    By Mark Blocker
    eHow Presenter

    Mark Blocker is a semi-retired ASE-certified master mechanic with more than 20 years of automotive experience. He has been a state-certified emissions specialist for more than 15 years...read more

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    Video Transcript

    "In this segment we're going to cover rotating the engine 180 degrees and that will bring up the next firing order. We were last adjusting the valves in cylinder #3. The next cylinder in order will be cylinder #4. So once again, watching the upper cams and each one of those sprockets will only turn 90 degrees, you're turning it counter clockwise and our two alignment marks have changed from pointing straight up to right at each other in the middle here and the up marks on the crank, rather, excuse me, the cam sprockets will be in the down position and I've got a little bit more to go and when at all possible when you're turning this you'll want to avoid over turning it because you don't want to turn the engine the wrong direction. It allows slack and free play in the tail and it can affect the alignment. That'll conclude this segment of rotating the engine 180 degrees. We've now got it set for the valve adjustment on cylinder #4. Please watch our next segment on adjusting the intake valve on cylinder #4 part 1."

    eHow Article: Rotate Engine for Valve Adjustment 2

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