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Discussion Starter #1
Maybe someone can help me out here.

Do Ducati only use/supply one belt tension gauge or are there different ones for 2V vs 4V for example. I'm talking about the old type mechanical gauge here, not the Mathesis! Oh yeah, and while I think about it, does the gauge work OK on the 998 and XX9 motors also?

Thanks guys, Neil.
 
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Re: Belt tension gauge (748rheid)

Don't need no stinkin' tension guage. At least on my 2 valve, its really easy. The Haynes manual has the drill. Grab the belt at it's center, squeeze the belt as hard as you can with just your thumb and forefinger and twist the belt until you can't hold it anymore, 45 degrees of twist and you're set, I don't know what the spec is for 4 valves, but I have used this technique on my 944 Porsche that has two timing belts, one for the cam timing belt and one for the balance shaft belt. The balance shaft belt was 360 degrees! Used the finger method and never a failure on either.
 
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Re: Belt tension gauge (748rheid)

What I use:

2v - Allen key method (http://www.ducatisuite.com/belttension), but IIRC there is a shim? that allows the 4v gauge to work on the 2v.
4v - the gauge from ca cycleworks (same maker of the ducati one I think)

I don't own a testastretta bike but I think you currently can only use the mathesis.
 
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Discussion Starter #4
Thanks for the replies guys.

The reason I need to know about the gauge is because I've been offered one new for peanuts. It's definitely a genuine Ducati one but just need to make sure it's the correct one. I'll be a bit upset if I buy it and then find out it will only work on the 2Vs for example.

Maybe Jason or Brad know????
 
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Re: Belt tension gauge (748rheid)

The belt gauge is for the 4V's, but Ducati does offer an optional kit that converts it to be used on the 2V'ers. It has diffrent rollers and a diffrent center thingy (???)

If you can pic it up cheap...I'd deffinatly go for it!

Oh, the 2V kit is only about $40.
 
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Re: Belt tension gauge (748rheid)

The tool has rollers of diameter 17mm for use on 4V and testa.
 
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Re: Belt tension gauge (chris_k)

Hi Chris,

Have sent you IM.

Cheers, Neil.
 
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Discussion Starter #8
i use the tool on testas, but i know with ours (which is maybe 15 years old now) on a desmoquattro that taking them up to '3' and tightening the lock nut there (as opposed to the official method of going higher and coming back down) will give me 110 hzwhen i remove the tool and use the sonic tool. every time. amazingly consistant. not sure how this relates to a new one tho. the setting in the manuals has always been '2.5', using the go over and then back down method.

the problem with testas is getting access to the belt, altho i tried using half the belt thickness at the top between the cams like the desmoquattros and it seemed to be suitable there too. using half the belt thickness didn't appear to concern it. the sonic tool is much easier on 749/999.

never used it on 2v, always just my feel. the sonic tool can be a nightmare on 2v. without any way to hold the adjuster and move them incremently (as on the 4v, where it's oh so easy) you go up and down and up and down and get the shits and do it like i used to.
 
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Re: (brad black)

You won't really need a gauge for the 2v heads, but I would not say the same for the 4v heads unless you have experience and a very good sense of touch & feel.

You can confirm your sense of touch and feel with your wife or girl friend, or both.

Just kidding, use a gauge if you own a 4v. The 2v is pretty simple.
 
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Discussion Starter #10
For 2V just get a fishing scale. 10 lbs is the correct tension. I paid 6 bucks for one at a local sporting goods store. Check the Haynes manual that is what is recommends.
 
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Re: (corsastrada)

So Brad,

what's the sonic tool say with using the Ducati 2.5 method?
 
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Discussion Starter #12
dunno. no point, as the 110 is the latest reference and i just used it to recalibrate our gauge.
 
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