Need a couple torque specs
Lead Driver
Joined: Aug 2006
Posts: 5,670
Likes: 13
From: Sand Lake, MI
No. Everything has a specification, whenever I do a hub unit at work it is torqued to manufacturers spec. Press-in bearings for FWD cars are even more sensitive, the bearing WILL fail prematurely without the correct axle nut torque. I've seen a few fail from people "tightening the **** out of it" with an impact. The customer is then unhappy when a bearing they had replaced 2 months ago is now growling again.
Revised designs ( bearing size, material) and TSBs regarding repeat problems and failures are reasons why manufacturers change specifications. Go by the book, it's not hard unless you can't read. Do I do some stuff "by feel"? yes, but when a wheel is attached to it (and I can lose my job over it) I'm going by the book.
Revised designs ( bearing size, material) and TSBs regarding repeat problems and failures are reasons why manufacturers change specifications. Go by the book, it's not hard unless you can't read. Do I do some stuff "by feel"? yes, but when a wheel is attached to it (and I can lose my job over it) I'm going by the book.
That and front wheel drive the center nut holds the drive axle in place, bolts from back side hold wheel bearing/hub/wheel on car. No preload to set or adjust.
Yea you can or would loose your job if seen not using the wrench, doesn't mean you need it though. Not when understand how it works what does what and why, what differences are.
Post Fiend
Joined: Nov 2005
Posts: 7,437
Likes: 4
From: Charles Town, W bygod Va
Isnt it great to agree to disagree!! 
(picture that guy wit 2 other fingers pointed up...peace.)
(picture that guy wit 2 other fingers pointed up...peace.)
Lead Driver
Joined: Aug 2006
Posts: 5,670
Likes: 13
From: Sand Lake, MI
Oh no doubt and nothing wrong with going "by the book", nothing at all.
Stated that from the onset, wanted/tried to make that clear in my first post.
Stated that from the onset, wanted/tried to make that clear in my first post.
Post Fiend
Joined: Nov 2005
Posts: 7,437
Likes: 4
From: Charles Town, W bygod Va
I've been in the auto repair business for years where production matters. There is a torque spec for nearly every bolt on the vehicle if you want to take the time to look it up and break out the torque wrench. I've heard of machine shops that tightened head bolts wit a 1/2" impact. I know a guy who will look up torque specs on caliper bolts for every vehicle he does.
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