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Thread: How to replace a piston

  1. #41
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    TDC is once again checked before reinstalling the cams
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  2. #42
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    The head bolts are coated with loc-tite
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  3. #43
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    The headbolts get torqued to spec
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  4. #44
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    Then the three 6mm bolts are torqued to spec as well.
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  5. #45
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    The cams are reinstalled and aligned by the marks stamped into them.
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  6. #46
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    After inspection, the cam caps are installed and the bolts will be torqued to spec in the pattern as laid out in the manual

    (If you cant tell, I want you reading that manual!)
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  7. #47
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    The cam chain tensioner is reinstalled
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  8. #48
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    Grease is applied to all rubber seals as per the manual
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  9. #49
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    The valve cover is reinstalled and we are all but ready to reinstall the engine.

    The valves will have to be checked and adjusted as well, but thats another "How To" for another day!

    There are also some copper washers that should be replaced on the M10 head bolts. Pick them up before you start assembly to save some last minute ordering.

    Sealant should also be applied to the valve cover gasket and torque specs followed to a T

    Thats about it in a nutshell. It is not terrible complicated and as long as you have a Manual and the tools to complete the job, you shouldnt have any problems making this chore a fairly easy one. ofcourse what we didnt show you was the time and work it took to remove the engine or reinstall it, but that to isnt all that hard.

    A big thanks to Eric from Elite who made this possible and a hats off to him for taking his time to walk us through this.
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  10. #50
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    Thumbs up

    Great write up and details!
    08 YFZ450- Pro- Amor Skid Plates/Nerfs, AC Bumper, Maxxis Razr II's, Cam Mod, Spark Arrestor Removed, Boyesen Quickshot plate, Uni Filter.
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