Modern monster (2v) 696/796/1100 timing belt guide

[wankski]

Hello,

sorry, just saw the last post now... it's not a typo. I'm in AUS, and the factory manual is pretty clear. That and JP's belt tensioning program confirms the tension you're trying to hit depending on model.

The difference is, ducati NA, posted their own advisory. I guess this is to reduce warranty claims on toasted cam pulley bearings due to the higher tension.

But the Ducati NA advisory is an internal paper-pusher measure to suit Ducati NA. This did not come from Ducati S.P.A (italy).

Having said all that, and having done the job a few times now (it all came off again for the valve job!) i'd concur with their conclusion. The amount of wrap on the 2v belt is very high, and anything around 100hz or more would be completely fine IMHO. In fact, i'd ditch freq, all together and got the '5mm allen wrench method' myself. doing that yielded 105hz consistently for me. That's where mine are now, no sweat.

[brad black]

the 2010 796 manual, for instance, has 145/160 for new belts and 100 for used belts being adjusted, which you only do if they're less than 70.

we found the 2006 onward ds motors, with the narrower lh cam journal, were much more likely to make noise than the early ones due to over tight belts.  it's a really nasty bearing noise when they get hot, and the fix is just to back the belts off until it goes away.

[thought]

 

Great first posts, and I would move this to the tutorial section, fits better in there.

[Armor]

Changing the cam timing to equalize tension on the belts is not a good idea.

[Howie]

the 2010 796 manual, for instance, has 145/160 for new belts and 100 for used belts being adjusted, which you only do if they're less than 70.

we found the 2006 onward ds motors, with the narrower lh cam journal, were much more likely to make noise than the early ones due to over tight belts.  it's a really nasty bearing noise when they get hot, and the fix is just to back the belts off until it goes away.

As far as I know Ducati has revised the spec to 110 across the range foe new belts.  Yep, I could be wrong.

[metroplex]

One of the exhaust manifold studs seized with the nut on my 696, my local dealership said it would take 2 weeks to order. Looks like Ducati doesn't like to use anti-seize on exhaust parts that get hot!

I found that I didn't need to lock the cams, and I didn't need to spend the money on a crank turning tool. Just remove the spark plugs, shift to 6th gear, and spin the rear wheel.

What I noticed was that the factory manual said to turn the crank until the marks line up, which would put the Horizontal cylinder at TDC for tensioning, and then to turn the engine 270* to get the vertical cylinder at TDC... I noticed this wasn't the case. So I basically just turned the engine until the vertical was at TDC for tensioning. I used the 5mm hex key method and the horizontal belt was 110 Hz, but the vertical belt *feels* a bit looser.

[DarkMonster620]

Hope these images clear your inquiry . . . Cam pulleys tightening torque 11Nm

Vertical belt tightening

Horizontal belt tightening