Belt Tension methods 2006 SS 1000Ds

Rico748 · #1 (**permalink**) 11-04-2006, 12:06 AM

I'm doing the valve check and service on my 2006 SS 1000Ds and found one of the belt rollers has seized,

not a problem caught it in time the belts are fine. On my 4V bike no problem with my belt tensioner tool But I don't know how for the 2V bike. I remember reading about and allen wrench method. Any alternatives to adjusting the belts without the Mathesis? Manual says adjust belts to 140HZ. What does that equate to in USA standards?

Fog Duc · #2 (**permalink**) 11-04-2006, 07:43 AM

Ducati has switched to using belt frequency to tension the belts. It is a much more accurate way to measure belt tension. The frequency of the belt is measured in Hertz (cycles per second). You pluck the belt like a guitar string, the tighter the belt, the higher the frequency.

You don't have to use the Mathesis, you can just get a generic belt frequency meter.
In fact, there is one on ebay right now:
http://cgi.ebay.com/BrecoFlex-SMT-Un...QQcmdZViewItem

BTW, The spec for the 1000DS motor is 142Hz, not 140Hz

quickdraw · #3 (**permalink**) 11-04-2006, 09:50 PM

this won't cost you a dime.

http://www.buschandbusch.com/ducatis...lttension.html

Rico748 · #4 (**permalink**) 11-05-2006, 12:46 AM

That's what I was looking for.

Thanks Rico

Fog Duc · #5 (**permalink**) 11-05-2006, 08:02 AM

*Yes it won't cost you a dime until the belt breaks and destroys your motor. Just kidding!

But seriously, Ducati has very different belt tension specifications for all of its motors. The specifications for the 1000 are very different from those of the other two valve motors (see chart below). For some reason it is the only air cooled motor to not run the rear belt looser when cold.

The belt frequency method is very precise and repeatable. When you do it using the allen wrench method you are not even in the ballpark of getting it close to the Ducati spec. I have the old style 2 valve factory spring scale tool for setting the belt tension and it is a joke compared to the frequency meter.

You might never have a problem, but after using this method I would never do it any other way.

* Horiz. Vert.
400/600/620/750 *** *124 Hz** ***** *112 Hz

800*** *** *** *** *** *** 160 Hz *** 145 Hz

900/St2 *** *** *** *** **146 Hz****** * 121 Hz

1000* 2/3Valves******* 142 Hz*** ***** 142 Hz

All 4Valves************* *110 Hz*** **** *110 Hz
*
748R*** *** *** *** *** *** 98 Hz*** *** *** 98 Hz

Fog Duc · #6 (**permalink**) 11-05-2006, 08:05 AM

Here is another persons method
http://home.comcast.net/~mmullen38/Beltadjust.html