Multi 1200 - 15k mile Valve Adjutment Intervals

Started by Drjones, February 05, 2010, 05:44:04 AM

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Drjones

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Goldeneye

Nice find  [thumbsup]

I had heard, from several media outlets, the interval was longer.  Hearing it from Ducati directly ends the speculation on how long "longer" is.

More  [moto]


Popeye the Sailor

I hope they changed something in the motor. The 7500 on the wifey's 695 is pushing it, IMO.
If the state had not cut funding for the mental institutions, this project could never have happened.

sally101

Quote from: MrIncredible on February 05, 2010, 09:15:06 AM
I hope they changed something in the motor. The 7500 on the wifey's 695 is pushing it, IMO.

RTFA  ;D

"Doubling the mileage between valve clearance inspection has been made possible with the introduction of a new valve seat material combined with improved combustion efficiency and temperature management designed into the Multistrada's new Testastretta 11° engine."
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Popeye the Sailor

Quote from: sally101 on February 05, 2010, 09:23:11 AM
RTFA  ;D

"Doubling the mileage between valve clearance inspection has been made possible with the introduction of a new valve seat material combined with improved combustion efficiency and temperature management designed into the Multistrada's new Testastretta 11° engine."

Reading articles smacks of effort.
If the state had not cut funding for the mental institutions, this project could never have happened.

1KDS

11 degree overlap seems pretty tame compared to some of the other 4V motors
Every bike I've ever owned.

Speeddog

Quote from: 1KDS on February 05, 2010, 04:11:50 PM
11 degree overlap seems pretty tame compared to some of the other 4V motors

No fooling, the tamest one I know of is the S4/S4R/ST4s at 29 degrees.
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Howie

I bet my lawnmower has more overlap.  I don't see how overlap affects valve adjustment intervals.  The valves are still opening and closing at the same speed.  Milder ramps maybe?

Raux

maybe the different materiels for the valvetrain mean less wear meaning less adjustment in the long run?

Monsterlover

Note that 11 degrees refers to the valve center lines and not to the overlap of the valve event's themselves. . .

I guarantee this engine has more than 11 degrees of overlap ;)
"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**

Monsterlover

"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**

Dave R

Quote from: Monsterlover on February 06, 2010, 05:58:05 AM
Note that 11 degrees refers to the valve center lines and not to the overlap of the valve event's themselves. . .

I guarantee this engine has more than 11 degrees of overlap ;)

It actually does refer to valve overlap
QuoteDoubling the mileage between valve clearance inspection has been made possible with the introduction of a new valve seat material combined with improved combustion efficiency and temperature management designed into the Multistrada's new Testastretta 11° engine.

So called because of its minimized 11° of 'valve overlap' - the interval of crankshaft rotation during which both the intake and exhaust valves are open at the same time

Dave R
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Howie

Quote from: Monsterlover on February 06, 2010, 05:58:05 AM
Note that 11 degrees refers to the valve center lines and not to the overlap of the valve event's themselves. . .

I guarantee this engine has more than 11 degrees of overlap ;)

That is what I thought until I looked at the website.  I would like to see the whole valve timing diagram

Monsterlover

Hmm.

Interesting.

Well. . .

With only 11*. . .

it's ripe for a turbo or supercharger [evil]
"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**