M3x0.05 thread repair?

[Barry Tilson]

My aft canopy mount stud hole is damaged in the main shaft bearing block. Does any one find it an advantage to own a $50-$70 helicoil kit for this popular M3 size?
The new block runs $56. I'm on the fence with changing it or repairing it?

Any other ideas repairing it. I could epoxy it in?

[Chuck Bole]

 Back before i bought a re-coil kit i  used a M3 x .05 STI tap and inserts i bought at our bolt supplier.
Has to be a STI tap though (Screw Thread Insert). I was able to start the insert with a filed down piece
of piano wire. It's better to have the correct tool though.

chuck

[Barry Tilson]

Agreed I have put them in with a Dremeled screw. Found the inserts enough just need the STI tap?

[Barry Tilson]

Think I might just run that bearing block on the bottom with the screw out for now. See what happens with my next crash.

[Chuck Bole]

 If you want the tap here is a link..
http://www.wttool.com/index/page/product/product_id/24658/category_id/20520/product_name/STI+Metric+Coarse+Bottoming+Taps+%28Heli-Coil%29

chuck

[Chuck Bole]

 Also i believe it uses a 1/8 drill bit.

chuck

[Barry Tilson]

Found a Permacoil kit for about $34 + shipping.
http://www.amazon.com/gp/aw/d/B000WGFBJC

[Chuck Bole]

 There ya go..

chuck

[Barry Tilson]

Tail box pinch bolt threads gave out. Just ordered a M3x0.05 thread kit.
I've got two expensive parts with stripped threads. Seems the small thread pitch doesn't hold up with to much disassembly reassembly.

[Barry Tilson]

Now that I have ordered the thread repair kit I'm not sure if it will work on this application? Essentially will have to install it backwards and cut the tang off
In the split? Going to be a stretch!

[Chuck Bole]

 Something like that i'd just put a longer bolt and nut on it. What I had to do to one of my boom support clamps.

chuck

[Rodney Kirstine]

Something like that i'd just put a longer bolt and nut on it. What I had to do to one of my boom support clamps.

chuck

Yep, I did that, too.

[Barry Tilson]

Yep was thinking that would work. How's the nut handle the angle?

[Chuck Bole]

 So far good. No problems yet.

chuck

[Maxturbine]

PerspectiveVisuals

Send me a email and I will help you . Let's do this right way. It would be a shame knowing it was a repair.

You need to me careful with the type of threadlocker. Some brands are gummy and will not help the cause.

I will run a tap through the parts to make sure the threads are ok.

Ralph

ralph.roppo@gmail.com