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Old Jan 31st 2019, 05:22 AM   #21
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As Mutt has correctly suggested the figures to be used, you need to check your manufacturers data before you use any torque wrench. The clutch cover screws are

1. Meant as a one time use fastener
2. Are only rated at 3-3.5Nm.

You should invest in a small torque wrench that deals with figures from 1Nm to around 10Nm. Larger wrenches are simply not accurate enough at lower figures. If you use anything over the specified torque on a new cover, you will simply strip the threads yet again. Forewarned is forearmed.
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Old Jan 31st 2019, 08:52 AM   #22
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I was assuming that the bike in question was a 99 series not the V4. The 99 series bike Clutch Cover Closing Screw M6x1 is specd for 13nm. The V4 clutch case uses a Torx screw with an obvious smaller rating. I do not see why the screws would not be reusable. Regardless disregard my post if this is for the 4 and yes get yourself a small rated wrench. I have a Wera lever TW that is 1-12 nm and a Wera screwdriver TW that is 1-4nm in .2nm increments for the small stuff.
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Old Jan 31st 2019, 10:51 PM   #23
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Originally Posted by endodoc View Post
I was assuming that the bike in question was a 99 series not the V4. The 99 series bike Clutch Cover Closing Screw M6x1 is specd for 13nm.
I'm only assuming it's the V4 as the thread is under that header. The OP doesn't exactly make it clear.

Originally Posted by bradp51 View Post
There is a handy screw driver you can buy from PB Swiss tools which does 1nm to 5nm. Great for small bolts and screw like the fairing screws. I have never lost a fairing screw after buying it.
Ordered!!
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Old Feb 5th 2019, 09:41 PM   #24
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Originally Posted by topolino View Post
As Mutt has correctly suggested the figures to be used, you need to check your manufacturers data before you use any torque wrench. The clutch cover screws are

1. Meant as a one time use fastener
2. Are only rated at 3-3.5Nm.

You should invest in a small torque wrench that deals with figures from 1Nm to around 10Nm. Larger wrenches are simply not accurate enough at lower figures. If you use anything over the specified torque on a new cover, you will simply strip the threads yet again. Forewarned is forearmed.
Where do you see 3 Nm for the clutch cover? Instructions with the GB Racing Covers spec as 11 Nm.

Quick update, got the bike back, put on the stator/alternator side with a Tekton torque wrench (2-20Nm), @11 Nm.. no more snapped threads.

Does anyone have the torque specs of the entire bike (or specifically, fairing bolts)?
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Old Feb 5th 2019, 10:26 PM   #25
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My information was direct from the dealer so I could install the carbon clutch cover.

The alternator side may well have a different rating. I would be dubious of claims/values from after market companies. Although most are reputable it is possible that they make mistakes. Check with Ducati manufacturer specs first.

Last edited by Mutt1979; Feb 5th 2019 at 10:30 PM.
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Old Feb 6th 2019, 12:55 AM   #26
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Originally Posted by DucatiBiscotti View Post
Where do you see 3 Nm for the clutch cover? Instructions with the GB Racing Covers spec as 11 Nm.

Quick update, got the bike back, put on the stator/alternator side with a Tekton torque wrench (2-20Nm), @11 Nm.. no more snapped threads.

Does anyone have the torque specs of the entire bike (or specifically, fairing bolts)?
Fairing bolts are 2.5nm. I posted up a torque settings list elsewhere on the forum. Clutch cover bolts are definitely 3.5nm. GB quote the wrong figure.

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Old Feb 6th 2019, 04:08 PM   #27
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GB Racing's instructions for 11nm is for their bolts that come with the covers.
The 3.5nm you quoted from Ducati is for the factory bolts.

They'd be made of different materials etc and there for have different torque requirements and ratings.

I've installed 4 sets of GB Racing covers onto my bikes now and I have never stripped a bolt and I've always followed their instructions.
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Old Feb 6th 2019, 10:31 PM   #28
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Originally Posted by PanigaleV4S View Post
GB Racing's instructions for 11nm is for their bolts that come with the covers.
The 3.5nm you quoted from Ducati is for the factory bolts.

They'd be made of different materials etc and there for have different torque requirements and ratings.
But the engine casing doesn't change its torque limit/threshold because you've changed the bolt
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Old Feb 6th 2019, 11:40 PM   #29
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Originally Posted by PanigaleV4S View Post
GB Racing's instructions for 11nm is for their bolts that come with the covers.
The 3.5nm you quoted from Ducati is for the factory bolts.

They'd be made of different materials etc and there for have different torque requirements and ratings.

I've installed 4 sets of GB Racing covers onto my bikes now and I have never stripped a bolt and I've always followed their instructions.
Be that as it may the torque figure is for the thread NOT the bolt. If you want to use 11Nm then go ahead, but I can only tell you what the factory state as the safe figure to use. If you strip your casing again, you're going to find this to be a very expensive exercise. Personally I always prefer to err on the side of caution. You can always tighten a bolt, you can't back it off once you've knackered the thread. Your choice mate.
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Old Feb 7th 2019, 01:04 PM   #30
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Originally Posted by PanigaleV4S View Post
GB Racing's instructions for 11nm is for their bolts that come with the covers.
The 3.5nm you quoted from Ducati is for the factory bolts.

They'd be made of different materials etc and there for have different torque requirements and ratings.

I've installed 4 sets of GB Racing covers onto my bikes now and I have never stripped a bolt and I've always followed their instructions.
Originally Posted by Mutt1979 View Post
But the engine casing doesn't change its torque limit/threshold because you've changed the bolt
Originally Posted by topolino View Post
Be that as it may the torque figure is for the thread NOT the bolt. If you want to use 11Nm then go ahead, but I can only tell you what the factory state as the safe figure to use. If you strip your casing again, you're going to find this to be a very expensive exercise. Personally I always prefer to err on the side of caution. You can always tighten a bolt, you can't back it off once you've knackered the thread. Your choice mate.
Good points. I've never thought of it that way.

Lucky for me, I didn't crack any of the cases then.
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