The Yaris sucks.

[ilikerice]

Originally Posted by Yaristeve

Interesting. Why would V motors need tensioners more than I4 motors?

I honestly do not know. I have just noticed this after working on cars for a while. Noted that not ALL "V" motors have those type. My girls Xterra has 3 belts for each accessory and each has a separate adjustable tensioner.

Its mostly the serpentine belts that connect all accessories (A/C comp, P/S pump, and alt.) have the spring loaded tensioner.


I have only had to tighten my belt one time after replacing it on any car. As CTscott says, usually a week after replacing when the belt finally stretches to its limits. I just examine the belt during oil changes to see if it starting to dry rot. Then I would consider changing it, not tighten it more.