Engine whine problem

[Briank]

So the book says to tighten the AC belt from 7-9 mm/10 kg if its a new belt...and its a new belt. What does "mm/10 kg" mean?

You push on it with 10Kg and it deflects 7-9mm

 

[DanRC30]

You push on it with 10Kg and it deflects 7-9mm

Is it really that critical or is it just like any other belt... not too loose and not too tight. What about the adjusting bolt? Says to torque to 8.7 lb-ft. Is that a better guide? Suggestions?

 

[Edresh]

My best guesss is the belt should have between 7-9 MM play in it when 10 Kg
of weight is applyied to it ????

 

[ftuhy]

So the book says to tighten the AC belt from 7-9 mm/10 kg if its a new belt...and its a new belt. What does "mm/10 kg" mean?

That means to apply a force of 10 kg (22lb) at the spot shown in the diagram in the book, and if tightened properly, the belt will deflect 7 to 9 mm (approx .3 to .35 inches). I simply calibrated my fingers (or thumb) by lifting 20 lbs, then applying what felt like 20 lbs force to the belt.

This is why I like the automatic tensioner used in many cars.:biggrin:

 

[d.n]

seems like all of the gauges returned by google start at 30lbs and go up from there. Too bad, I wouldn't mind actually measuring this for a change....

Oh, I found one here

http://www.mainsupplies.com/index.php?main_page=product_info&products_id=287

Any other affordable alternatives?

 

[pgilliam1]

Is it really that critical or is it just like any other belt... not too loose and not too tight. What about the adjusting bolt? Says to torque to 8.7 lb-ft. Is that a better guide? Suggestions?

I don't think it's that critical. If you can get about 1 inch total movement from the midpoint of the longest span you should be fine. Just push on the belt until it stops in both directions then measure the distance (usually about 10 pounds of pressure will do).
Happy Motoring!