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Home✈️Aircraft🚁HelicopterAlignT-REX 700N › Stripped Frame Screws!!!!!!!!
01-30-2012 05:47 AM  7 years ago
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rexxigpilot

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Stripped Frame Screws!!!!!!!!
What is the best why to remove stripped frame screws for the engine mounts? They were stuck so hard I could not get them out using my MIP Thorp drivers so I used my PB Swiss hex bits with a T-handle. All 4 hex heads stripped like butter! There has to be a trick to remove them. Please help! TIA
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01-30-2012 07:53 AM  7 years ago
The man

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Slot it with dremel and use a flat screwdriver
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01-30-2012 03:31 PM  7 years ago
rexxigpilot

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Has anyone drilled them, then used a Screw Extractor like in the picture below?

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01-30-2012 03:32 PM  7 years ago
Zaaaguy72

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MN

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I always just Dremel a notch, that works great. Get some hardened screws to replace them.Team Sanjel!
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01-30-2012 03:33 PM  7 years ago
Michaelm0268

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I have done that but if you can use a dremel and make a slot it would be easier
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01-30-2012 03:52 PM  7 years ago
fastflyer20

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+1 on the slot, then heat with a heat gun or soldering iron before attempting to remove.

Over the years I have had limited success with screw extractors, especially on small screws.
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01-30-2012 04:04 PM  7 years ago
CF1

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Olympia, WA

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If the slot doesn't work carefully drill off the head. Then you can grab the shaft with some small vice grips. I replaced all my frame screws this winter with Lynx screws. Money well spent.
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01-30-2012 04:05 PM  7 years ago
rexxigpilot

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Thanks guys. I should have heated them up after my MIP Thorps could not budge them. I was in a hurry.
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01-30-2012 04:06 PM  7 years ago
rexxigpilot

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CF1, do you have a link for the Lynx? Thanks!
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01-30-2012 05:58 PM  7 years ago
Zaaaguy72

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I usually buy and use the RCscrewz hardened screw kits when I purchase a heli. Never had any problem with them plus the stainless adds a little bling!!

http://www.rcscrewz.com/index2.php/...993f046dc600d47
Team Sanjel!
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01-31-2012 12:48 AM  7 years ago
dchekas

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Farmington, CT

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Did your 700N have the updated screws?Team Align, Team Futaba, Team Byron Fuels, Team Thunder Power
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01-31-2012 01:45 PM  7 years ago
rexxigpilot

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No, it has the original HN6015A screws.
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02-12-2012 10:38 AM  7 years ago
]{iller3D

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snohomish, WA

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It is common for the main block screws to seize, I just drill off the heads, pull the blocks and use ViseGrips on the small portion that sticks out. If you are going to use Align hardware make sure to get the newer "deep" style main block screws.there is no 12 step program for heli addicition.... i wouldn't go anyways.
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02-12-2012 03:48 PM  7 years ago
rexxigpilot

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Thanks Killer. That's what I will do when it becomes necessary. I was able to take it apart, change the clutch and put it back together without removing the engine mounts.

BTW, this was an original 700N kit, the deeper screws weren't available back then. We were the unwitting Beta testers for Align. No more Align helis for me!
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02-12-2012 04:57 PM  7 years ago
unclejane

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The screws are fine; overtightening and aggressive loctite can cause problems with seizure, tho. Blue locktite is actually pretty strong stuff and can be too strong for smaller screws like the Align frame screws, etc. It's fine for bigger bolts like spindle bolts, etc., but for small screws a weaker loctite like Purple and even some of the Greens are better.

Align isn't to blame for your assembly mistakes

LS
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02-12-2012 05:35 PM  7 years ago
Glenn Goodlett

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California

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"The (origional Align frame) screws are fine"... Are you serious???
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02-12-2012 06:03 PM  7 years ago
unclejane

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Are you serious???
Yep - tho you strategically inserted "(original Align frame)" in my remarks for some reason. Regardless, never had any problems on mine (after 4 Align builds). As long as they're not overtightened, they havn't given me any trouble.

I have found, however, that blue locktite can be too strong for the small fasteners. I've used Green and Purple instead with better results...

LS
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02-12-2012 06:18 PM  7 years ago
Glenn Goodlett

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California

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I inserted (origional Align frame) because that is what the discussion was in referencing. I've stripped those out without thread locker. If you have never stripped the head out on four builds, maybe you should play the lottery.
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02-12-2012 07:25 PM  7 years ago
rexxigpilot

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Just for the record, there was no Loctite used. There is no need to on a screw with oversized shoulder and zero clearance between shoulder and frame. It was a good concept that was poorly executed.

This is just a classic example of how Align does not do thorough testing before they put something on the market. We are their Beta testers when we buy their products.
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02-13-2012 12:36 AM  7 years ago
unclejane

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I inserted (origional Align frame) because that is what the discussion was in referencing. I've stripped those out without thread locker.
Ah, gotcha... Mine are likely later kits than those.
If you have never stripped the head out on four builds, maybe you should play the lottery.
Well, I just know how to tighten fasteners is all .

LS
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