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HelicopterAlignT-REX 600N › Tip for attaching starter coupling without dropping engine?
08-04-2011 02:26 AM  6 years agoPost 1
TerranAce007

rrVeteran

Austin, TX

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So I had my 600N on the workbench replacing the clutch liner this weekend and I must not have done a good job of aligning the set screws with the dimples on the starter shaft. I was at the field after work today and it came loose on me with an ugly grinding noise when I went to start up for the 3rd flight. After torquing the set screws back in a few times with no luck, I gave up and went home.

The best way I know to fix this is to drop the engine out and press the starter shaft up from under the clutch bell so there's no up/down play when tightening. That works pretty well but takes time and I would rather spend it flying.

Does anyone have any tips on a quicker but equally effective method of doing this? I though about using some kind of magnet to pull the shaft up but don't have any large magnets lying around...

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08-04-2011 02:38 AM  6 years agoPost 2
Thumpernator

rrKey Veteran

Senoia, Georgia, USA

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This is not a sure thing, but it can work. If the coupling will slide on the shaft with zero friction, you can install it with the heli upside down.

This worked for me on a Raptor. Good luck.

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

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08-04-2011 03:09 AM  6 years agoPost 3
Kevin Dalrymple

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Indianapolis

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You can take the clutch and bearing block out with out removing the motor. But it is about the same time wise. I can have the motor out of my 600N in about 5 - 10 min.

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08-08-2011 06:24 PM  6 years agoPost 4
rilopez825

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Pembroke Pines, FL

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I took out the clutch assembly from the 600 once leaving the motor in. It takes to much time. You have to loosen more screws and servos than just dropping the motor.

Take your time and do it right or do it twice.

Richard

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08-16-2011 01:18 AM  6 years agoPost 5
helixangle

rrKey Veteran

Mamaroneck, NY - USA

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once you spin the start socket on the start shaft...game over, sorry

replace the start shaft and socket, but...

for some reason align now makes the start shaft detent pressed rather than milled, so the NEW socket will spin on the NEW shaft

get a drill bit the same diameter as the grub screw for the socket, chuck the shaft in a pipe vise, and drill deeper detent in the start shaft, assemble and all should work well

don't really know why they change the MFG process, but this is my solution, works well

Be sure the juice is worth the sqweeze
Remember life is hard...even harder for stupid people

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08-23-2011 01:41 AM  6 years agoPost 6
foodman392003

rrApprentice

Motorcity,Hockeytown ,USA

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Your right about the shallow dimples on the new start shafts. Align must not have been selling enuff of them. There junk the way they are. Drill them deeper for sure or you will be doing it again way to soon. I have replaced clutches both taking the engine out and going from the top. The engine way is a little faster and alot less screws and things to take off but eather way is not that bad. What ever you feel comfertable with.

Compass Chronos,7HVU,6HVU

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HelicopterAlignT-REX 600N › Tip for attaching starter coupling without dropping engine?
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