Serpentine Belt Tensioner for 1Z

Hi.

My 1Z has a relatively new KRR tension roller assembly (approximately 40,000 km, 20 months).

"This part has extremely high breakaway torque values. When I engage the tension lever and slowly release it, I can almost "park" the tensioning roller in a position where it doesn't press on the cable reel."

D.H. also that, during operation, the belts are never tensioned evenly.

In a drawing from INA (a manufacturer of such spring elements), there's a mention of "Coulomb friction area," which apparently is intended to slightly dampen the spring (similar to how shock absorbers work on a suspension).
Therefore, I'm hesitant to simply flood the part with oil, because the "brake" could then become too weak, and the belt flutter might return.

The old tensioner was far too weak, which caused the belt to flap noticeably, and this, in turn, created LOUD NOISES.

"Refurbishing" costs EUR 60. Would you first fiddle around with the clamp to make it a little more flexible?

The PS: SpannARM slides smoothly into the bushings with only minimal play.


Here is a site plan.
http://people.freenet.de/golf-schrauber/Spannrolle/Spannrolle_1Z.html

Hi Martin,

I have two more comments for your description:

It is extremely important not to reverse the direction of the ribbed belt, otherwise it will break much faster.

If the tensioner has excessive play within the housing, the housing should be replaced. In our Audi 80, this was the cause of frequent failures of the ribbed belt and tensioner pulleys (with a failure occurring approximately every 8,000 km in the later stages!).

Thank you for the tips.

ad 1. If you do NOT remove the servo belt, you cannot change the direction of rotation .

2. I didn't have a game, so I didn't think about it.

I will still include some tips for you.



What do you think about oiling the wrench?

m;,

dieselmartin wrote:

What do you think about oiling the wrench???

I would be afraid that the oil and dirt could form a grinding paste, and then eventually cause some play. If the operation of your belt is normal, I would just leave it as is. However, I also remember that the tensioner lever can sometimes get stuck in certain positions. In my opinion, the vibrations of the engine should be sufficient to achieve the necessary tension .

I want to oil the hinge.

If it gets damaged, I'll have to buy a new one.

The tension arm (where you had the issue) has been sealed with new gaskets .

m;