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HomeAircraftHelicopterHelicopter Main Discussion › What is the best way to remove a stripped screw
02-04-2010 03:51 PM  8 years agoPost 1
rolexcomex

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USA

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Any tricks to remove those occasional pesky stripped align hex screws??

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02-04-2010 03:54 PM  8 years agoPost 2
jschenck

rrProfessor

La Vista, NE.

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use a dremel cutoff wheel to cut a slot in the head and a big flat blade screwdriver with a quality end. Heat up the screw with a soldering iron before putting the screwdriver on it.

When cutting the slot into the head put towels or old socks around it, something to keep all the debris from getting into your heli.

Then buy an aftermarket screw set that uses separate washers so you don't have to face that again.

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02-04-2010 03:55 PM  8 years agoPost 3
jschenck

rrProfessor

La Vista, NE.

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I was assuming you are talking about a 600 or 700.

If it's a smaller heli especially the 250 then get an aftermarket quality tool. For the 250 use a good .050" driver to work with those screws.

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02-04-2010 04:01 PM  8 years agoPost 4
rolexcomex

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USA

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Thanks, its in a 500.

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02-04-2010 04:06 PM  8 years agoPost 5
jschenck

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La Vista, NE.

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I'd use a soldering iron to heat up the screw and a good quality driver to get it out.

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02-04-2010 04:53 PM  8 years agoPost 6
VooDooX

rrElite Veteran

San Francisco Bay Area CA, US (San Mateo)

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iff all else fails drill it out and retap it with a slightly larger bolt or a nut and bolt if you cant

Velocity 50 "99.9999999999999% of an atom is empty space." also 01001000 01001001

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02-04-2010 04:59 PM  8 years agoPost 7
rcmike

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Dickson, TN

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Make sure it is actually stripped first. Some of the align screws are actually over sized a little and some drivers are too small for them. On the 500 I think it was a wiha driver and the align driver that fit them well. I had the same problem assembling mine but when I got the slightly larger drivers the ones I thought I had stripped worked just fine.

If all that fails I have had the best luck cutting a slot for a flathead screwdriver.

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02-04-2010 07:31 PM  8 years agoPost 8
GMPheli

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W. Bridgewater, MA USA

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You can also put some valve grinding compound on the tip of the allen (has fine particles that help take up the space). Or JB weld the allen into the screw.

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02-04-2010 07:40 PM  8 years agoPost 9
DustinB

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Houston, TX

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The dremel tool works just fine like suggested. The thing to keep in mind is to use the thin grinding wheel and keep your hands very steady. Make sure the wheel is 90 degrees and dead center on the screw. Then lightly slide side to side in a straight line. Try not to move forward or back or twist. If you do it right you will have a perfect slot for a flathead screwdriver.

If you get the screwdriver ready when you do it, you can unscrew the screw right after you cut the slot when the screw is still hot. Once you get the screw out get some good hex drivers and don't tighten the screws down that tight when you use loctite. I just went through all this on a 450 pro. The mip thorp hex drivers are working perfect.

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02-04-2010 09:33 PM  8 years agoPost 10
djrformcar

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Las Vegas, Nevada USA

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Dynamite! But have unintended collateral damage to other parts.

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02-04-2010 10:42 PM  8 years agoPost 11
Jeff polisena

rrElite Veteran

westpalmbeachflorida usa

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They do make extraction tools it has a reverse bite and pulls bolt out I don't know the size you would need but at my local Ace hardware they have many to chose from

I stole it ,flew it and gave it back ;)

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02-05-2010 03:14 AM  8 years agoPost 12
ken22golf

rrApprentice

Bridge City, TX

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I've had to use the dremel slot method AND a soldering iron to remove a couple of screws that someone had installed WAY too tight with WAAAY too much threadlocker.

I've gotten to the point to where I can tell if I have to use enough force to strip the head out and I'll heat up the soldering iron and take it out with the hex driver before having to pull out the dremel.

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02-05-2010 05:11 AM  8 years agoPost 13
john howard

rrApprentice

Deatsville alabama

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I use craftsman extractors.Just took 6 broken prop bolts out of a 3w 150 hub for a friend.He was thinking he was going to have to send It off to have them removed but these extractors from sears work great and come In very small to large sizes.

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02-05-2010 05:31 AM  8 years agoPost 14
Mike545

rrVeteran

gettysburg, pa

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drill and blast

"always feel thankful..... never entitled"

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02-05-2010 03:08 PM  8 years agoPost 15
Thumpernator

rrKey Veteran

Senoia, Georgia, USA

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No one mentioned the Ron Wrench.

Dave
I keep on thinking, but nothing's happening. Knuk, Knuk, Knuk

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02-05-2010 03:54 PM  8 years agoPost 16
groran

rrApprentice

CALIFORNIA CITY, California

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Keep the small cutting disc
I keep the cutting disc for a dremel after being worn to 1/2in. just for this. Small enough to cut a slot in the screw without damage to the rest of the heli. I have actually got a new disc, purposely ground it down on strong steel to a small size to do this LOL.

Randy Lafleur

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