Torque settings - wet or dry make a difference

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snshami
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Torque settings - wet or dry make a difference

Postby snshami » Wed May 30, 2012 11:42 pm

Hi, if i put loctite on the bolts should i adjust the torques lower. This is for the timing belt replacement I am doing.
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Re: Torque settings - wet or dry make a difference

Postby NitroDann » Wed May 30, 2012 11:52 pm

No, not for the bigger bolts.

it does make a difference but the only important bolt is the crank which should just be frikking tight,

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Re: Torque settings - wet or dry make a difference

Postby Mr Morlock » Thu May 31, 2012 9:44 am

you merely use a torque wrench to the setting nominated and many torque settings are not critical.

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Re: Torque settings - wet or dry make a difference

Postby Uncle Arthur » Thu May 31, 2012 10:32 pm

Mr Morlock wrote:you merely use a torque wrench to the setting nominated and many torque settings are not critical.


So what you're trying to say here is that the design engineers decided that a torque setting for bolts wasn't really that necessary and us backyarders could just ignore them?

A bit like your doctor or pharmacist providing you with a recommended dosage for a particular drug as a conversation starter??? :roll: :lol:

I cannot say for certain that wet or dry will affect torque settings, but I do know from experience (and failure) that if a torque setting on a bolt says to torque said bolt with a lubricated thread (say like the head bolts) and you don't lubricate them, you can lose quite a substantial amount of torque.

So ignore them at your peril (and remember the old adage RTFI).
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Matty
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Re: Torque settings - wet or dry make a difference

Postby Matty » Fri Jun 01, 2012 12:31 am

You don't lose torque, you get exactly what you applied. You lose clamping force, because some of the torque is just overcoming friction.


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