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albertoS4
today I replaced the belts on my ducati monster s4. Are wasnít to install the belts without bloccapulegge and the motor is in phase.
I did do a few rounds to the engine without spark plugs with the starter motor and the belts are in phase.
My doubt is that on the tensioner lower (horizontal cylinder) I see that the belt tends to "slide" on the pulley smooth falling against the crankcase. This is not the case with the other strap (the vertical cylinder). The voltage is the same in the two straps.
Did anyone ever happened to you? do you know what can be due?

sisco
I have to say that I have no idea how you made this distribution (I have never had the opportunity to see one ) but the fault you described could be the bearing of the tendicingia or something in the tendicingia the same worn-out, and for this reason the roller where it flows over the cingia would bring the belt to move to one side, a question, the cingia old was carter she?

albertoS4
Hello, the belt old was benissomo and I removed a few minutes before.
I was also very careful to the direction of the belts. Today provoa see if the voltage can be excessive...
the belt tensioner seem perfect, are not at all noisy

albertoS4
I have the doubt about the direction in which the tensioner will tend... you have to pull them towards the head or towards the crankshaft?
this is a detail that I can't remember when I disassembled...

sisco
usually the turnbuckles you should be moving in the direction in which they take the belt more surface area (or degrees) on the gears of the shafts (engine - camshaft), unless you have a spring that pushes them in one direction.
can you post a detailed picture of how is this distribution?

albertoS4
place the photos...
I believe, however, that the problem is due to the direction of tension of the belts...

albertoS4
FIXED: was a problem of the direction of the tensioner. Strange thing on the vertical cylinder tended well the belt and it didn't give problems.
THANKS Sisco

albertoS4
Also on the workshop manual actually says that the timing belt tensioner you tend counterclockwise

sisco
I am glad that you have solved, probably one of the turnbuckles aimed in the wrong direction does not remain parallel, and brings the belt to move to one side

albertoS4
the turnbuckles you should be moving in the direction in which they take the belt more surface area (or degrees) on the gears