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Timing belt tensioning

Started by ducej, February 18, 2013, 03:47:06 AM

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joshuajcrouch

#15
April 18, 2013, 04:29:14 PM
Quote from: ducpainter on April 18, 2013, 03:04:46 PM
You want to check tension with the cylinder for the belt you're checking at TDC.

Pardon my newb question... but why does TDC matter for belt tension?  Does the tension on the belt change depending on where there motor is positioned?

ducpainter

#16
April 18, 2013, 04:40:26 PM
Quote from: joshuajcrouch on April 18, 2013, 04:29:14 PM
Pardon my newb question... but why does TDC matter for belt tension?  Does the tension on the belt change depending on where there motor is positioned?
I believe the theory is the cam is completely unloaded at that position due to any rotational force from the closer assist springs being removed.
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brad black

#17
April 18, 2013, 07:15:13 PM
Quote from: joshuajcrouch on April 18, 2013, 04:29:14 PM
Pardon my newb question... but why does TDC matter for belt tension?  Does the tension on the belt change depending on where there motor is positioned?

yes.

needs to be at tdc firing.
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