Completely stripped.... - Honda RC51 Forum : RC51 Motorcycle Forums
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post #1 of 11 (permalink) Old 12-04-2013, 07:32 PM Thread Starter
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Completely stripped....

Over the summer I laid my Rc down unfortunately, the crash made a whole in my oil pan. I now have an Oil pan to replace it with, the only problem I am having right now is this stupid 8mm OEM Screw!!!!

Its completely stripped as you can see, I tried drilling into it so I could remove it with an extractor but the drill bit broke with the bit inside the screw.... The head of it was cut into it so I could unscrew it with a flat screw driver but that didn't work either. Best way to remove this?

Apologies if this is not the right thread.

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post #2 of 11 (permalink) Old 12-04-2013, 07:33 PM Thread Starter
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post #3 of 11 (permalink) Old 12-04-2013, 07:41 PM
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Heat...take a propane torch heat up the aluminum around the bolt, have some vice grips handy.
What I've done is heat the aluminum surrounding the offending bolt, yours is nice as there is still bolt to grip with a set of vice grips.

Get it nice and hot and try to turn it slowly to try to break the grip...but you could have saved yourself some headache by using a hand impacted driver.



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post #4 of 11 (permalink) Old 12-04-2013, 07:54 PM Thread Starter
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Heat...take a propane torch heat up the aluminum around the bolt, have some vice grips handy.
What I've done is heat the aluminum surrounding the offending bolt, yours is nice as there is still bolt to grip with a set of vice grips.

Get it nice and hot and try to turn it slowly to try to break the grip...but you could have saved yourself some headache by using a hand impacted driver.
There is barely anything to grip unfortunately so this might be my last option I guess. Heat the screw itself or the oil pan?


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post #5 of 11 (permalink) Old 12-04-2013, 07:56 PM
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Heat the pan...I've also used water to cool the bolt. It shrinks and the aluminum is expanded and you cross your fingers and hope it turns.



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post #6 of 11 (permalink) Old 12-04-2013, 08:46 PM
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Take a hammer and a punch about the diameter of the bolt head and give it a good whack before you heat it.

If you have a dremel you can cut a slot into it too and use a screw driver to back it out.

Good Luck.



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post #7 of 11 (permalink) Old 12-04-2013, 09:16 PM Thread Starter
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Take a hammer and a punch about the diameter of the bolt head and give it a good whack before you heat it.

If you have a dremel you can cut a slot into it too and use a screw driver to back it out.

Good Luck.
My broken drill bit is stuck in the screw and there is no way to get the drill bit out... I'm just going to heat the oil pan and screw before and pray that the vice grips don't break what's left of the screw!

I just want to swap oil pans but this stupid screw is stubborn 😩


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post #8 of 11 (permalink) Old 12-04-2013, 09:24 PM
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My broken drill bit is stuck in the screw and there is no way to get the drill bit out... I'm just going to heat the oil pan and screw before and pray that the vice grips don't break what's left of the screw!

I just want to swap oil pans but this stupid screw is stubborn ��


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I read that.....carbide cutting tools are your friend.



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post #9 of 11 (permalink) Old 12-04-2013, 09:43 PM
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Originally Posted by Ram51 View Post
My broken drill bit is stuck in the screw and there is no way to get the drill bit out... I'm just going to heat the oil pan and screw before and pray that the vice grips don't break what's left of the screw!

I just want to swap oil pans but this stupid screw is stubborn ��


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It had better not be a normal drill bit as that would not be good. You want to use a left hand drill bit. There is a great sticky thread in the how-to sub-forum that is all about great tools to use on the RC51. Read it.

At this point, if the broken bit is stuck you should be able to reverse the drill and clamp down on what is available on the broken bit, use a plug in drill as it is much higher torque than most battery drills, heat the pan, and go for it. If the bit spins in the drill, file the expose part of the bit down so it is not round and clamp that drill onto it.
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post #10 of 11 (permalink) Old 12-04-2013, 10:07 PM
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Looks like someone started off with the wrong tool for the job & it got progressively worse from there. Did you use a hex shaped socket, or an old open ended wrench?

I'd have cut a slot in the bolt with a suitable grinding wheel then put a flat screw driver socket head on the end of a breaker bar and given it a turn. Make sure you're turning the screw anti-clockwise relative to it's head. Easy to forget when looking from the top!

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