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timing belt tension


ANDY
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hey guys i been battling this high pitched whine after i installed my new timing belt and tensioner, and its starting to get me mad cause it been messing with it for the last 2 weeks but anyways i dont want to leave the belt to loose and skip a teeth and i dont want to belt to tight and whine all the time. i did read the docs write up and i have it at the 5 oclocl position and it almost bends 90 degrees can anyone help me out and let me know what i can do to make the whine go away and tell me how to check the tesnion on my timing belt. any input would help so thanks guys,,andy

 

 

ps sorry if i made to many threads on my timing belt questions

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its a new tensioner i just think i have the belt a little to tight cause i loosened it and it went away but my friend said when i reved it up it was kinda flappy and i dont know if thats good cause i dont want it to jump a tooth. is there a way to check the deflection of the belt?

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From the book:

 

"Check the deflection of the timing belt by applying 22 lbs of force midway between the camshaft pulleys. The belt should deflect 0.512 to 0.571 inches, 13-14.5mm."

 

Also as a side note, make sure that your tensioner bolt is not actually an old exhaust manifold bolt. The PO of my truck used an exhaust bolt on the tensioner, which I failed to notice when I did my TB, so just 2000 miles after installation it snapped and now I am replacing the engine.

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i measured about 13mm of flex and im pretty sure my tensioner was way too tight cause i was tinkering with the tensioner for about 1.5 hours and i got it to not make a whine it seems loose but i looked up on youtube an d i saw way looser belts then mine so i think its good now well i hope it is.

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well i think i have a problem my belt was so loose and it was kinda going up and down i have the covers off. but is the spring supposed to be behind that bolt ???

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well i think i have a problem my belt was so loose and it was kinda going up and down i have the covers off. but is the spring supposed to be behind that bolt ???

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I'm not quite sure that you mean. The tensioner spring against the little stud? Best take a picture and there is a good write up in the Garage section about this...

 

B

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