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can you over tighten u bolts

by Jason Krajcik Published 3 years ago Updated 3 years ago

Let us just start off by pointing out that it is possible to overtighten your bolt. Overtightening will cause its strings to be bent out of shape and the bolt will never tighten. If your bolt is spinning, you will need to check if your bolt is stripped or your nut.

Full Answer

Can You overtighten a bolt?

Let us just start off by pointing out that it is possible to overtighten your bolt. Overtightening will cause its strings to be bent out of shape and the bolt will never tighten. If your bolt is spinning, you will need to check if your bolt is stripped or your nut.

What happens if you over tighten a lawn mower bolt?

Overtightening will cause its strings to be bent out of shape and the bolt will never tighten. If your bolt is spinning, you will need to check if your bolt is stripped or your nut. Either or both will need to be removed and replaced with a bolt/ nut that isn’t damaged.

Why won’t my bolt spin?

So you don’t have an issue “currently” with a spinning bolt. However, your bolt isn’t spinning because you have managed to over tighten it. This too can be harmful to whatever project you are doing. When you over tighten or over-torque a bolt you could strip the bolt or even snap the screw heads.

Why do my nuts and bolts keep coming loose?

It could also be side sliding of the nut or bolt as it relates to the joint. You could try a lock nut to prevent loosening once you have this project near completion and the spinning figured out.

How tight should I tighten my U-bolts?

Tighten all U-Bolts until they are snug only. Tighten in the sequence shown to approximately 1/3 of recommended torque.

Can you over tighten leaf spring bolts?

Tightening the shackle bolts too much will squeeze the shackle straps against the leaf springs and the whole suspension system will bind and cause problems. The best thing to do when tightening down shackle bolts is to use lock nuts and tighten them until they are snug and then backed off 1/4 turn.

What should leaf spring U-bolts be torqued to?

If you want to use a bolt as well as welding your leaf spring hangers, then you can follow the same torque specs as the leaf spring u-bolts. A 1/2 inch diameter bolts should be torqued between 45 ft/lbs and 70 ft/lbs.

Why would U-bolts have to be tightened correctly?

centre bolts hold the spring together for assembly and help locate the spring onto the axle in the correct position. Correctly tightened ubolts are what holds the springs firmly in place on the vehicle when driving.

What is the torque specs for U-bolts?

Recommended U-Bolt Torque for Cold-Formed U-BoltsSizeMaterial GradeMax. Torque Ft. Lbs. Unplated1/2 - 205709/16 - 1851005/8 - 1881773/4 - 1683136 more rows

Do axle U-bolts stretch?

Reason 1: U-bolts are often a torque to yield bolt. This means when you tighten a U-bolt to its correct torque spec, the bolt stretches to achieve that level of tightness. However, the U-bolt can only stretch so far, each time the U-bolt is tightened, it is closer to failure. To us, it's not worth the risk.

How much weight can U-bolts hold?

How Much Weight Can An Eye Bolt Hold? Shank Diameter (in)Weight Capacity (lbs)7/87,200110,0001-1/415,0001-1/222,0007 more rows•Sep 30, 2020

When should the U-bolts on a spring suspension be re torqued after installation?

Also, TMC recommends running the truck on a course where maximum articulation of the suspension occurs after installation, then loading the suspension before retorqueing the U-bolts. They should be retorqued again between 3,000 and 5,000 miles after replacement.

What is the torque on a 1/2 U-bolt?

45ft/lbs-70ft/lbsA properly torqued u-bolt stretches by design resulting in a clamping force that acts as a spring clamp, holding the components of the suspension together. The torque specs for a 1/2" u-bolts which is the size most frequently used on Venture Trailers is 45ft/lbs-70ft/lbs.

What happens if U-bolts are loose?

If your u-bolts are loose in any way, please tighten them as soon as you can. Tightening them won't damage them at all. If you don't properly tighten them, it could just pop right off and ruin your truck's suspension. Another issue that can arise with u-bolts are cracks.

What might happen to the screw or bolt if it is over tightened?

One of the most damaging ways to do that is by over-tightening, or over torquing the fastener. This can result in stripping screws, snapping screw heads and damaging pre-tapped threading.

How tight should spring shackle bolts be?

How Tight Should Leaf Spring Shackle and Spring Eye Bolts Be If the bolts for the shackle link and the leaf spring eye are too tight, the suspension won't articulate as it should. You want to run the bolt down tight, then back it off by a 1/4 turn, as you'd mentioned.

What to do if a bolt and nut are spinning together?

If the bolt and nut are spinning together, it’s time to crack the bad nut. Get a nut splitter from your local hardware store, or you can easily buy one online, and break the nut. Be careful not to apply so much pressure that you damage your work surface.

How to avoid spinning bolts?

Before drilling, blow, or use a tiny piece of cloth to clean the hole out completely. Make sure you use the right drill bit and drill straight. Holding the drill at an angle will secure the bolt in place.

Why isn't my bolt spinning?

However, your bolt isn’t spinning because you have managed to over tighten it. This too can be harmful to whatever project you are doing. When you over tighten or over-torque a bolt you could strip the bolt or even snap the screw heads.

Why does a bolt spin in place?

The bolt may spin in place due to a few different reasons: A hole with specks of dust can prevent the bolt from staying in place. It acts as a lubricant. Another reason may be that you have the wrong-sized bolt. Both over and under-sized bolts are going to keep spinning.

Can you overtighten a bolt?

Are Your Bolts Stripped? Let us just start off by pointing out that it is possible to overtighten your bolt. Overtightening will cause its strings to be bent out of shape and the bolt will never tighten. If your bolt is spinning, you will need to check if your bolt is stripped or your nut.

Can you tighten a spinning bolt?

Although it might seem like the spinning bolt won’t tighten, it’s not impossible. Sometimes, the problem is quite simple and just tightening the bolt further or drilling a bit deeper will get the job done. Other times, you’ll have to remove/ break the bolt (and maybe even the nut) and start from scratch.

What happens when a bolted joint is tightened?

When such a bolted joint is tightened further, a torque is applied to the nut which, (after the initial friction is overcome), causes the nut to turn and stretch the bolt. The body of. Continue Reading.

Why does a bolt break?

If the joint is designed with best practices the bolt will break. The reason for this is because bolt fracture is the most detectable failure mode. Other common failure modes are nut thread strip, bolt thread strip, drive failure, embedment (when screw head digs into the clamped member), and tool failure.

What causes a preload to exist in a bolted joint?

The stretching of the bolt causes a predictable preload to exist in the bolted joint. In simple terms, the preload causes the bolt and the nut to not just ‘hold’ the components together, but squeeze the components together with a ‘clamp load’.

What is torque to yield?

Automotive cylinder head bolts are often ‘torque to yield’. After the yield point is reached further turning of the bolt head does not result in an increase in axial force. This gives an even loading on automotive cylinder heads. Typically these bolts have a waisted section which yields before the threads strip.

What happens if the head isn't torqued down properly?

If the head isn’t torqued down properly, then the most likely failure is of the head gasket, which could lead to loss of compression, the mixing of oil and coolant, exhaust gases getting into the oil ways or cooling channels, erosion of the cylinder head, overheating and warping of the cylinder head.

How to abbreviate the existence of a bolt?

Abbreviate the existence of the bolt by putting a lot of power on it. Harm the strings by surpassing their heap limit. The inappropriate utilization of instruments, for example, sway weapons, can bring about a similar risky result or more regrettable, as over-twisted fasteners can make perpetual harm them.

What to do if you don't have anti tank guns?

Assuming you have no anti tank guns, RPGs or anti tank missiles, there are some things you could do: Run into a wooded, rocky area with lots of obstacles like deep water, mud, snow, boulders and or thick vegetation.

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