I need advice on two frozen screws.
- Fatherof2
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I need advice on two frozen screws.
I am totally unable to get either of the screws on the rear master cylinder protector cover loose. This is so strange to me as I have had an easy go of taking off the swingarm and shock. I have tried an impact screwdriver as well. No luck, these things dont budge. At this point, both screws are pretty buggered up. Can someone please advise me on the best way to handle this?
Thank you very much,
D.
Thank you very much,
D.
- Mr. Wibbens
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Have you tried heat?
I mean as in a propane or mapp gas torch
I mean as in a propane or mapp gas torch
Last edited by Mr. Wibbens on 04:55 pm Feb 21 2011, edited 1 time in total.
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- Mr. Wibbens
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My impact screwdriver came with a few bits
There's one that is a big and sharp philips head that usually works well
Or if it is really buggered you could try cutting a slot in it with a rotary tool
There's one that is a big and sharp philips head that usually works well
Or if it is really buggered you could try cutting a slot in it with a rotary tool
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- Slick_Nick
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all they seem to do is take more material off making it even more impossible
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- Mr. Wibbens
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Make sure you are preloading your impact screwdriver before you whack it with a hammer
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- Fatherof2
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Wibs, perhaps I am not using the impact screwdriver properly. What do you mean by preloading the screwdriver?Mr. Wibbens wrote:Make sure you are preloading your impact screwdriver before you whack it with a hammer
It may be too late anyway. The head of the screw is pretty bad now. Pretty rounded out. I may need to grind a slot into the head and try and use a flat screwdriver.
I had less trouble with the swingarm and rocker arm. Kind of wierd that these two little screws are giving me so much trouble.
Thanks again for the help,
David
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Fatherof2 wrote:Wibs, perhaps I am not using the impact screwdriver properly. What do you mean by preloading the screwdriver?Mr. Wibbens wrote:Make sure you are preloading your impact screwdriver before you whack it with a hammer
It may be too late anyway. The head of the screw is pretty bad now. Pretty rounded out. I may need to grind a slot into the head and try and use a flat screwdriver.
I had less trouble with the swingarm and rocker arm. Kind of wierd that these two little screws are giving me so much trouble.
Thanks again for the help,
David
I find that it helps a lot if you hold the driver with pressure in the direction you want the screw to go before you hit it, otherwise it never seems to work very well
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If there is anything left of the screw you can use a screwdriver dipped in valve grinding compound (or Comet in a pinch).
If it's too late for that then grind a slot in the head with a Dremel tool and use a flat tipped screw driver.
As a last resort you can drill the heads off with a #30 (or even a #21) drill bit. Drill only a little and then pop the head off by rocking the drill bit (if your experienced) or using a punch that's the same size.
If it's too late for that then grind a slot in the head with a Dremel tool and use a flat tipped screw driver.
As a last resort you can drill the heads off with a #30 (or even a #21) drill bit. Drill only a little and then pop the head off by rocking the drill bit (if your experienced) or using a punch that's the same size.
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- Rick
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As mentioned, if there is any bite left, heat up the area if possible. Pop the bolt real good with a punch, then do what wibby said. Preload, and pop and turn. If all else fails, notch. If that doesnt work, can you weld? Weld a nut on it with a extractor rod. Use that to turn it out. If that isnt an option, you can snap the head off, and then drill it out and use an easyout.
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- Mr. Wibbens
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Just don't use those cheap ass HF bolt extractors DAMHIK
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- jad628
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From where you are right now:
1) spray it with some good penetrate, PB Blaster, etc.
2) Use a dremel, or even a hack saw blade to make the slot (you mentioned a cheap HF grinder. Sure, one will work, but the bit is important. You want a good surface area for the slotted screwdriver bit to be able to gain purchase on for torque w/o slipping off. A grinding type head won't make such a good, thin slot as a rotary-type tool like a Dremel does with a cut-off wheel).
3) Heat it with a propane torch. Take care to protect anything that reacts badly to heat around it
4) If it fails to come off, buy a good quality easy out or bolt/screw remover. I have two Craftsman types that have never failed me. Drill it out with the appropriate bit, tap the easy out into place, and use a tap wrench to turn it.
5) if you reach this point with no success it is a place I've only been a couple of times and it was before I had the Craftsman easy outs. In those cases, I drilled significantly deeper until I had drilled through the entire bolt. I stepped up bits until I was right at the limit of the threads and used a tap & die set to re-cut the threads.
6) The weld on bit trick sounds useful, but I've never had to do that.
7) If you are still unsuccessful at this point, I'd suggest getting someone else to help. But I bet you'll succeed.
1) spray it with some good penetrate, PB Blaster, etc.
2) Use a dremel, or even a hack saw blade to make the slot (you mentioned a cheap HF grinder. Sure, one will work, but the bit is important. You want a good surface area for the slotted screwdriver bit to be able to gain purchase on for torque w/o slipping off. A grinding type head won't make such a good, thin slot as a rotary-type tool like a Dremel does with a cut-off wheel).
3) Heat it with a propane torch. Take care to protect anything that reacts badly to heat around it
4) If it fails to come off, buy a good quality easy out or bolt/screw remover. I have two Craftsman types that have never failed me. Drill it out with the appropriate bit, tap the easy out into place, and use a tap wrench to turn it.
5) if you reach this point with no success it is a place I've only been a couple of times and it was before I had the Craftsman easy outs. In those cases, I drilled significantly deeper until I had drilled through the entire bolt. I stepped up bits until I was right at the limit of the threads and used a tap & die set to re-cut the threads.
6) The weld on bit trick sounds useful, but I've never had to do that.
7) If you are still unsuccessful at this point, I'd suggest getting someone else to help. But I bet you'll succeed.
Last edited by jad628 on 12:28 pm Feb 22 2011, edited 2 times in total.
- Mr. Wibbens
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- jad628
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Definitely get a torch. Heat will quickly become your favorite tool for sticky bolts and such. That rotary tool that Wibs posted will do the job for you better than a grinder. Those cut-off wheels are great for making slots.Fatherof2 wrote:Thanks guys.
I guess I am going to pick up a propane torch and a grinder.
Does anybody know if a cheap HF grinder will work for gringing a slot into the head of the bolt?
Thanks again,
D.