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Old Jul 2nd 2014, 10:27 AM   #11
Stw
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Originally Posted by AntiHero View Post
Hey guys--what the hell does "with pre-tightening" mean?
Where did you see this expression used???
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Old Jul 2nd 2014, 10:35 AM   #12
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Originally Posted by AntiHero View Post
Hey guys--what the hell does "with pre-tightening" mean?
not sure, but sometimes bolts are elongated (thermally, hydraulically, mechanically) before a certain torque is applied, to reduce the friction factor between the nut and the washer out of the final torque value.

good read here for example.

otherwise, the only other thing i can imagine is like with wheel studs / nuts, to tighten them and then again after 10 miles

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Old Jul 2nd 2014, 03:18 PM   #13
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It could be plenty of things that require pre-tensioning/stretched.

BMW's are known for it with their Aluminium screws.
Actually even the fasteners on the clutch cover on some of the BMW's are pre-tensioned.
As a result, they're a single use item, and have to be replaced with new ones every time you unbutton them. $
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Old Jul 2nd 2014, 03:41 PM   #14
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Originally Posted by AntiHero View Post
Hey guys--what the hell does "with pre-tightening" mean?
The tighten before the tighten !

NOLA
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Old Jul 3rd 2014, 12:49 PM   #15
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Originally Posted by EvoL View Post
Thanks Phil!



What exactly do we grease when we tighten down the rear wheel? And how the fuck do I torque it down to 230 ft/lb??

The nut and axle. Buy a decent torque wrench. Job done.
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Old Jul 3rd 2014, 01:07 PM   #16
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Originally Posted by AntiHero View Post
Hey guys--what the hell does "with pre-tightening" mean?
Pre-tightening usually refers to the process of tightening all fasteners acting on the same device (such as a clutch plate or cover with multiple bolts) to a known fraction of final target torque (usually 1/3 to 1/2 of target value).

For instance, if you had adjusted your chain tension and were going to torque the two swing arm pinch bolts that hold the concentric, you'd individually pre-tighten them to 1/2 of the target value before final torquing.
i.e. tighten left one to 1/2xx, tighten right to 1/2 xx, tighten left to XX, tighten right to XX.

With some fasteners that are specifically designed to stretch during torquing (they are one-time use items), the pre-tightening torque is usually specified as a percentage of final torque value.
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Old Jul 5th 2014, 05:44 AM   #17
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Hey Phl

Thanks very much for this list.
Two comments from my side:

Screw retaining swingarm clam to eccentric (2 Screws M12x1.25, 25Nm).
I've had in my hand two original Panigale torque tables which both stated 34Nm like for all other "normal/other" single side swingarm Ducatis.
Even my master tech got confused. My solution: I thight it with 30Nm :-)

Screw retaining rear brake calliper to plate (2 Screws M8x1.25, 25 Nm).
25Nm is too much, Use your commen sense to tighten this screws. Otherwise helicoil might help.
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Old Mar 12th 2015, 06:30 AM   #18
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Few Questions

Few questions on this.

Fastener retaining counterweight to handlebar M18x1.5 25 LOCK 1

This being the handlebar weight on the bike. Is the M18 a Spline Bit? Also what is Lock 1? Thanks fellas in advance.
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Old Mar 12th 2015, 06:32 AM   #19
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you can use a larger allen for this one (i think 14mm).

lock 1 is the ducati specified thread lock. dunno the equivalent in loctite.
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Old Mar 12th 2015, 06:45 AM   #20
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Originally Posted by Phl View Post
you can use a larger allen for this one (i think 14mm).

lock 1 is the ducati specified thread lock. dunno the equivalent in loctite.
Thx Phil. Is the DNA Lock 1 a heavy hold or medium hold locker typer thinger? lol.
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