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MCN |
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MCN Super Spammer
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BanditsHigh |
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BanditsHigh Worse than a woman
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Posted: 19:32 - 28 Aug 2018 Post subject: |
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Interesting |
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Hong Kong Phooey |
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Hong Kong Phooey World Chat Champion
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Dave.... |
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Dave.... Trackday Trickster
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rpsmith79 |
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rpsmith79 World Chat Champion
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MCN |
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MCN Super Spammer
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RhynoCZ |
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RhynoCZ Super Spammer
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Posted: 18:39 - 29 Aug 2018 Post subject: |
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MCN wrote: | The most common failure in bolting stuff is whether to use lubricant of not.
A lubricant massively increases a fastener's clamping force. Things can be crushed by the extra force exerted even thought the 'correct' torque for the bolt dimension is used. |
This +1Nm
For most of the things you work with (motorcycles/cars) the manufacturers give you the dry torque values. If you lubricated your bolts, the torque wrench, although set correctly, will allow way more torque before it clicks or the head of the bolt just snaps off before that.
The most common issue is wheel bolts and nuts on cars. Even profesional mechanics lubricate them and then even tighten them with their fancy air guns, which is wrong on its own (not the topic in question).
When you put way too much torque on your wheel bolts/nuts, the bolts/lugs do stretch and may even snap clean off when you brake, accelerate, turn or just go through a pothole. Not to mention the fun you'll have when you're going to need to change the wheel at the roadside. ____________________ '87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor |
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Old Thread Alert!
The last post was made 5 years, 242 days ago. Instead of replying here, would creating a new thread be more useful? |
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