Quick Answer: Is It OK To Loosen Bolts With A Torque Wrench?

What is a good torque for an impact wrench?

1200 ft/lbs.The average torque for 3/4 inch impact wrench is about 1200 ft/lbs.

As stated before, it is more than enough for even the most substantial tasks..

Do I really need a torque wrench?

If you plan to do any major work on your engine or on some major powertrain components, you absolutely need a torque wrench. Overtightening cylinder-head bolts, for instance, can easily cause expensive damage and catastrophic coolant loss. Too-tight exhaust manifold bolts can cause the manifold to crack.

How much does an extension affect torque wrench?

In the picture above, an extension with a swivel and socket can affect the torque depending on the angle. Adapters will affect the torque wrench setting if the distance changes between the fastener and the torque wrench handle. A straight extension will have no effect on the torque wrench setting.

What is a good practice to follow when tightening bolts with a torque wrench?

4-7) What is a good practice to follow when tightening bolts with a torque wrench? A good torque practice is to first apply only a light torque to each bolt in the recommended sequence. Then repeat the tightening sequence and each time increase the torque slightly until the required torque is reached.

What should you not do with a torque wrench?

Users should never put a pipe or any other kind of extension onto a torque wrench handle as doing so can seriously damage the tool and make it inaccurate, never mind the potential safety hazard.

Why is my torque wrench not clicking?

Test it with a bolt thats already tight, but set the wrench lower than the bolt should be tightened to to make sure it still clicks. If it doesn’t click before the bolt turns, it likely needs to be opened up to re-position the bearing.

Can you ratchet with a torque wrench?

In these applications, a torque wrench is the proper tool to use instead of a plain ratchet. Fortunately, in all but the tightest or most specialized of applications, ratchet torque wrenches can be used.

How many ft lbs should lug nuts be?

And when you look at that, and realize that the average torque required on a lug nut, to hold the wheel on, is 80 to 90 ft-lbs, well you can imagine how over-tightened some of these lug nuts are. Now that’s a problem because it almost guarantees warped brake rotors.

Is it okay to put wd40 on lug nuts?

If you “have to” lube your lug studs/nuts (and that’s a perpetual argument), WD40 is good because it’s a mediocre lube! Its anti rust properties could be useful too.

How should you store a torque wrench?

Storage: All torque instruments should be stored in their original case. Avoid any torque wrench storage locations that are subject to high or low temperatures and high humidity. “Clicker” style torque wrenches should always be turned down and stored at the torque wrenches lowest possible setting.

How much torque can a 1/2 drive take?

150 ft-lbs will break a 3/8″ drive usually and about 300 ft-lbs will break a 1/2″ drive. These are on regular breaker bars that are partially hollow and have the little ball in the space of the head to hold the socket. A SOLID 1/2″ heat treated impact rated drive anvil will go up to about 1200 ft-lbs.

Can I use wd40 to loosen lug nuts?

If the bolt is stuck in place because of rust, you can use a bolt loosening spray such as WD-40 Penetrant Spray. … Apply the lubricant spray to the bolt and then tap it using a hammer. This will help the formula to penetrate the fitting and loosen the bolt so that it can be removed easily.

How often should a torque wrench be calibrated?

every 5,000 cyclesIn short, it’s standard practice to calibrate your torque wrench every 5,000 cycles or every 12 months, whichever comes first.

Should you double click a torque wrench?

One of the reasons for doing this, though, might be when you are torquing, the fastener itself becomes slightly bound up, not giving a perfectly correct reading. By double clicking, you are allowing the fastener to rest for a second, then you are back at it to get the proper amount of torque there.

Can you use regular sockets with a torque wrench?

Normally when you buy a torque wrench you will not get a socket. You can not use it without a socket.

How is bolt torque calculated?

DETERMINING TORQUE The general equation for bolt load based on applied torque is T = KFiDb where K = torque coefficient. K is a function of the coefficients of friction and collar friction in the joint, and these are based on variables such as surface finish, coatings, and so on.

Is a torque wrench necessary for bikes?

When dealing with carbon frames or parts a torque wrench is a necessity. Otherwise its a nice tool to have, but definitely not needed if you have a good feel for tightening bolts. I do all my own work on my bikes and I buy tools as I need them. I bought my first torque wrench when I bought my first carbon frame.

Can you over tighten lug nuts by hand?

The problem with impact guns is they’re so powerful, one can easily over-tighten the nuts. A torque wrench measures the tightening force applied, allowing the user to accurately follow the manufacturer’s recommendations. If your lug nuts were tightened by hand I wouldn’t be too concerned.

Who can calibrate my torque wrench?

For many companies, the best place to get a torque wrench calibrated is at a third-party calibration lab.

What happens if you drop a torque wrench?

One accidental drop to the shop floor probably isn’t a big deal, but repeated drops can affect the wrench’s calibration. This is true even if it doesn’t show signs of damage. … Even if you have never dropped or otherwise abused your torque wrench, it’s always a good idea to have it professional checked regularly.

How much torque does it take to loosen lug nuts?

A quick glance at a lug nut torque chart shows that most lug nuts should be torqued between 80 and 100 ft-lbs. Some require less torque, others more.

How do you know how much torque?

Car manufacturers specify a proper tightening level, a torque value expressed in foot-pounds, that can usually be found in your vehicle’s owner’s manual. Torque is a rotational force applied around a point or, in this case, a nut. Put a 1-foot-long wrench on a nut and apply 10 pounds of force to the opposite end.

What size drive torque wrench for lug nuts?

1/2 inchA 1/2 inch torque wrench with a working range of 30 to 160 ft lbs is the correct size tool for lug nuts and other heavy fasteners.