Bob LaRosa

Stripped Bolt Removal

Bob LaRosa
Duration:   5  mins

Description

Harley Davidsons have many allen and torx style screws/bolts. It is common to find the heads of these bolts to be rounded or stripped.

What Happened?

There are a handful of reasons that you searched for stripped bolt removal for an allen or torx screw to become compromised in this manner:

  • Over tightening: even with a quality bit, the head of a screw will round if over torqued upon. Tighten hardware to its correct torque spec as found in your service manual.
  • Wrong Loctite: the head of a screw can be compromised when trying to overcome the use of the wrong strength locking agent. Never use red Loctite where blue Loctite is specified. Never use more Loctite than what may be recommended.
  • Cheap tools: cheap (Chinese) tools are often made with inferior metals and sometimes undersized. These tools easily strip or damage, even quality hardware. Try to buy quality tools. You do not have to spend hundreds or thousands of dollars on Snap-On or Mac tools. There are several tool companies that sell consistent, above average quality tools such as Craftsman, or SK.
  • You Need To Remove It

    Regardless of the reason you now need to figure out stripped bolt removal, you will not want to condemn an entire component just because one screw is standing in your way. Drilling out a damaged screw is an option but it should be saved as a last resort, as the likelihood of damaging the bolts allocation increases.

    Here’s A Great Idea

    One way stripped bolt removal of allens that works well is to use a torx bit, one size larger. Use a heavy steel hammer to embed the bit into the damaged allen screw. Then, with a hand impact, strike swift and hard. Your first strike is the most important as it will be the most effective attempt that you have. Once the torx bit is embedded, you should be able to twist the impact handle to extract the screw. The hand impact is a must for anyone dealing with frozen or stripped fasteners. Used in combination with a quality torx bit, you will be able to extract rounded or stripped allen and torx style screws.

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    Hi, I'm Bob LaRosa. Welcome to Fix My Hog. Let's take a look at Allen's or any type of hardware. When the bolt itself, the allocation in the head of the bolt is stripped out. As you can see this outer primary cover the "derby cover" got dragged along the pavement somewhere. Somehow, I wanna save the outer primary but I wanna remove the derby cover backing plate and the hardware itself. Someone either used the wrong size Allen or over tightened them and stripped them. The Allen itself will just spin freely in the head before I go and take a new Allen style bit and try driving it in and make the Allen the hex configuration correct again, but in a larger size. What I typically do is use a Torx bit. And I don't like to use my good quality Torx bits to hammer 'em into a stripped allocation. I typically buy a decent quality, but a cheaper brand than what tools I typically use. It's a very simple process. What you wanna do is start, obviously anytime you're gonna strike any hardened surface you need safety glasses. I'm just gonna start the Torx bit into the head of the bolt. I'm gonna make sure it starts nice and straight and square. I'm gonna use a smaller ball peen to get it started. Then I'm gonna use a larger hammer something with some weight behind it just to drive that Torx bit down into the cover. Once I'm comfortable with how far the depth or the engagement of the Torx bit is into the stripped head I can then use, what's known as a hand impact make sure it's in the right direction. And the important part of this is your first swing, is the most critical the most important swing, you wanna sneak up on it and you wanna hit it hard so that it jars it loose. If you go in and you try and tap it chances are you're never gonna get loose. Safety glasses are very important. You wanna get a good handle on the tool and the bit, if you're not comfortable with the cover being on the work surface make sure a second set of hands holds it down. But the key is to really sneak up on it heavy swing and get that bolt to break free. As you can see one shot of the hammer and that bolt came loose. The Torx itself is embedded into the head of the bolt. So you're gonna wanna rocket gently back and forth in order to get it out of the bowl. But the key is, I didn't break the bit and I did get the bolt out of the cover. Again, it's as simple as safety glasses, a Torx bit that's one size larger than the stripped hole and you wanna tap it into place. Nice and squaring straight, make sure it's driving into the head of the bolt. Give it a nice wrap with the larger hammer and then use the hand impact. And again, the only swing that counts is the first swing. You wanna get a good firm grip on the tool and hit it hard. You'll find nine out of ten times that bolts come free. And what you did, you saved yourself a lot of aggravation by not having to drill it out or just discard the entire component because it can't be reused. Another quick tip, never try to remove the stripped headed bolt from the bit unless it's threaded in. And never strike the tool or the bit once it's loose, chances are, if you strike it you'll destroy the threads in the component you're trying to save. All you need to do is just gently rocket back and forth and you'll see it'll eventually wanna work itself right out of there. And then you can remove it in its entirety and you'll do that same procedure as many times as necessary on as many different styles and sizes of fasteners as need be. The key is to have a Torx bit that is one size larger than the Allen allocation in the head of the bowl.
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