RunRyder RC
 2  Topic Subscribe
WATCH
 1 page 482 views
Scorpion Power Scorpion Power
Helicopter
e-
Align
T-REX 250 › SF Mixing Arms
03-23-2009 03:37 AM  8 years agoPost 1
tienman04

rrApprentice

Silver sping, MD

My Posts: All  Forum  Topic

Is it normal for the balls on the mixing arms to break soo easily?? This happened twice to me already. The first time I tried to take it out to make sure Align did their part thread locking the screws. The Balls snapped while I tried to unbolt it. Bought a new kit along with some stainless steel balls. Tried to replace the stock balls with the arms--It snapped Again!!....the worst part is, the balls break off and the remaining threads are still in the Arms, hence, it is impossible to take out. I tried to heat up the balls with the soldering too but it still snapped off..

Now I have two kits with four broken Mixing Arms just waiting for the replacing parts....

When all else fails, altitude prevails

PM  EMAIL  GALLERY  Attn:RR  Quote
03-23-2009 03:47 AM  8 years agoPost 2
R38133

rrKey Veteran

USA

My Posts: All  Forum  Topic

Sure sounds like they did there job!!! Next time get a small butane torch they are 10.00 at Home Depo put the arm in a small vise and give the ball a shot with torch. She will screw right out loctite will take 200 deg + to really let go

PM  EMAIL  GALLERY  Attn:RR  Quote
03-23-2009 03:58 AM  8 years agoPost 3
Mr Scout.

rrNovice

milpitas,ca,USA

My Posts: All  Forum  Topic

You dont really need to tighten that much.usually what i do is put a small dab of blue locktight in the tip of the ball joint screw and slowly screw it in.been crashing here and there and ball joint still intact.also try to get the MIP Thorp hex.works awesome with them small hex screws!!..

PM  EMAIL  Attn:RR  Quote
03-23-2009 04:34 AM  8 years agoPost 4
R38133

rrKey Veteran

USA

My Posts: All  Forum  Topic

You dont really need to tighten that much.
Hey Mr scoot he busted them removing them righty tighty lefty loosey

PM  EMAIL  GALLERY  Attn:RR  Quote
03-23-2009 03:53 PM  8 years agoPost 5
demosa

rrVeteran

Tigard, Oregon,​U.S.A.

My Posts: All  Forum  Topic

I had the same thing happen to me for the swashplate balls.
My explanation is that when Align installed them they totally overtightened them to the point where the balls started to weaken. Then if you try to take them off they break.

When you first install them you need very little pressure (two fingers) on the screwdriver. The loctite will keep them in place.

As for taking the rest of the ball out of the threads, you can use a tiny drill bit and very gently let it grind on the part that's stuck. It will eventually warm up and grab enough of it that it will drive it out the other way.

PM  EMAIL  GALLERY  Attn:RR  Quote
03-24-2009 12:26 AM  8 years agoPost 6
docjoe

rrElite Veteran

Stockton, CA United​States

My Posts: All  Forum  Topic

What I did to get the screws out after the balls broke off was that I first heated them with a torch. Then I took a dremel with a fine cutting disk and was able to make a very small slot in it (cutting the SF arm slightly) from the back. Then I used a fine flat head screwdriver and was able to back this out. I was able to do this on 2 different mixing arms so it does work. Just takes a little time.

Joe
We haven't seen Colonel Angus around these parts for years!

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
03-24-2009 01:14 AM  8 years agoPost 7
caseyjholmes

rrElite Veteran

Portland, Oregon

My Posts: All  Forum  Topic

Hmm,
Wonder if I could fix my old swash and head blocks this way.
Those little balls are crazy to work with
Thanks for the ideas as always Doc.

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 482 views
Scorpion Power Scorpion Power
Helicopter
e-
Align
T-REX 250 › SF Mixing Arms
 Print TOPIC  Make Suggestion 

 2  Topic Subscribe

Saturday, November 25 - 11:39 am - Copyright © 2000-2017 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online