Ducati 999 Timing Belts - 110Hz vs 145Hz?

**ducati2242** · 19 Oct 06, 07:14 PM

Today i changed my timing belts.Quite an easy task, Set them at 110Hz as manual says. Then i went for the oil change started it up and warmed up let the oil out and whilst waiting for it to drain i rechecked the tension. 145 Hz when hot and they felt tight so i released them to 110 Hz when hot. Felt much better . Now im in a delemmer are they right at 110Hz cold and 145 Hz hot or should i leave them at 110Hz hot and they feel right

They are a lot tighter than the originals they were only 70 Hz when cold

**Wilf** · 19 Oct 06, 08:41 PM

in December 2005 the cold tension was changed from 70hz to 110hz

Use the 110Hz when cold. min value is now 88HZ but this is an absolute minimum for checking belts already fitted.

145 when hot sounds about right.

Good luck

**ducati2242** · 20 Oct 06, 11:28 AM

Thanks for that i have retensioned them to 110Hz . Thought that i would check them after they had cooled and funnily enough they were both at 70 Hz

**audicdl** · 25 Oct 06, 08:20 PM

Where do you buy one of those tension thingamygig machines from and how much are they?
Chris

**jono999** · 28 Oct 06, 04:05 PM

Yes where do you get the tentioners from.Any chance of a rundown how to change the belts.Some pics would be appreciated...

**ducati2242** · 28 Oct 06, 06:08 PM

Belt tension was talked about here < General Technical ~ DIY Ducati Belt Tension - Using the sonic method![/quote]