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  1. 4JGtootsie's Avatar
    4JGtootsie
    4JGtootsie is offline Tsikot Member Rank 4
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    February 14th, 2009 03:19 PM #1
    When it flexes do you mean it stretches? What causes it to flex?
    Is it possible that slippage can cause friction?
    Why does sudden braking and acceleration speed up wear?
    Last edited by 4JGtootsie; February 14th, 2009 at 03:26 PM.
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  2. oj88's Avatar
    oj88
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    February 14th, 2009 04:29 PM #2
    Quote Originally Posted by 4JGtootsie View Post
    When it flexes do you mean it stretches? What causes it to flex?
    Is it possible that slippage can cause friction?
    Why does sudden braking and acceleration speed up wear?
    Friction prevents slippage. But if there's slippage, it will cause heat.

    I suggest you re-read my previous post about the analogy with tires.
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    4JGtootsie
    4JGtootsie is offline Tsikot Member Rank 4
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    February 14th, 2009 04:44 PM #3
    The job of the tires is similar to the belt. Whether serpentine or ordinary.
    Even if serpentine belt nag sislip yan.
    We turn the engine to do timing by using all the pulleys connected to the serpentine belt and it still slips before turning the crank shaft pulley. Tensioner is loaded. We had pressure the belt so it will hug the pulleys.
    How can that be explained?
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  4. oj88's Avatar
    oj88
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    February 14th, 2009 05:03 PM #4
    Quote Originally Posted by 4JGtootsie View Post
    The job of the tires is similar to the belt. Whether serpentine or ordinary.
    Even if serpentine belt nag sislip yan.
    We turn the engine to do timing by using all the pulleys connected to the serpentine belt and it still slips before turning the crank shaft pulley. Tensioner is loaded. We had pressure the belt so it will hug the pulleys.
    How can that be explained?
    It will still depend on where the force is coming from. Turn the crank, not the other pulleys. Again, leverage is your answer.

    If you turn one of the smaller pulleys for instance, it will slip. But if you turn the crank, it will turn all the other pulleys. Ever notice how the serpentine belt is wrapped almost completely around the crank?
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    4JGtootsie
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    February 14th, 2009 05:16 PM #5
    The belt doesnt almost completely wrap the crankshaft pulley because the compressor and power steering pumps is in the left and right side of the engine.
    If a belt doesnt slip like you say, then kahit saan pulley mo iikot sasama lahat ng pulley especially the crank kasi siya ang may pinaka malaking contact sa belt.
    Kung nag slip sa isang pulley whether ginamitan mo ng leverage o hindi will only prove na it does slip. Ordinary belts without tensioner are not tighten to the max and allow a little slack so that the it can slip a little so as to obsorb force whenever rapid increase and decrease of RPM occurs.
    Sa Monday na ulit magsasarado kami ng office/shop.
    Last edited by 4JGtootsie; February 14th, 2009 at 06:04 PM.
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    oj88
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    February 14th, 2009 05:48 PM #6
    Quote Originally Posted by 4JGtootsie View Post
    The belt doesnt completely wrap the crankshaft pulley because the compressor and power steering pumps is in the left and right side of the engine.
    The tensioner or one of the other pulleys (ie. water pump) pushes against the belt to wrap it around the crank pulley as much as possible to maximize grip.
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    arnarn
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    February 15th, 2009 06:59 AM #7
    Ano signs na dapat nang palitan ang timing belt? kakatune-up lang kasi ng 98 lancer el ko. sabi ng mekaniko samen ok pa daw ang timing belt. tsaka magkano naman aabutin ng palit ng timing belt? thanks mga tsikoteers!
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  8. speedyfix
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    February 15th, 2009 11:51 AM #8
    yeah, the timing belt is not something you want to scrimp on.
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Drive Belt and Timing Belt