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What's a good torque wrench to get? (lemmy.one)

submitted 1 year ago by [email protected] to c/[email protected]

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cross-posted from: https://jorts.horse/users/fathermcgruder/statuses/110789232582943740

What's a good torque wrench to get?

I want to replace the spark plugs in my car and I'm apparently going to have to torque them to 30Nm. #diy #tools

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[–] [email protected] 4 points 1 year ago

In general, if you put any kind of lube on the threads, the torque spec should drop a bit because the lube makes it easier to spin the parts. Over-spinning the parts can stretch the threads to the point of damaging them. If you don't compensate for the lube, you could end up over-torqueing things. For example, if wheel lug nuts should be torqued to 100 lb-ft dry, it may drop down to 90 lb-ft with anti-seize. As for spark plugs, I don't know how much it should be reduced, if at all. It also depends on if the torque spec is already tuned for anti-seize. If the official procedure calls for anti-seize, then it's probably ok to assume that the torque spec already compensates for it.