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Ruff
03-02-2008, 03:10 PM
Anyone having an issue with clutches breaking? I have broke two in three days worth of flying.

The first one that broke, I made one flight on it before it broke. The second clutch lasted about five flights before breaking.

I am running a TT53 motor with a Carbsmart and a JK Hatori Pipe and I am running about 2100 RPM on head.

They are breaking in the same place, right where it flexes. The motor is aligned with the start shaft, and the clutch gap with the liner looks very good, not too large. I have replaced the clutch bell each time it broke, so that is not an issue.

I am also having a problem with the pinion and the bearing. It is just press fit, and I degreased it and green locktighted it in place like I have always done with my Raptors. Once I pulled the motor again today, it broke free and was loose again.

Since the clutches are bolted in place and indexed by the start shaft, I don't think this has any bearing on my clutch problems.

Ruff

eyeflyhelis
03-02-2008, 10:57 PM
haven't had that issue but a great replacement is the raptor 50 clutch. its balanced better. same size bearing it bolts right in.

WayneBrown
03-03-2008, 08:07 AM
Wow, I haven't seen that on the K3D's before.
Looks like something to keep an eye on.

scratchsatriani
03-14-2008, 10:23 AM
Two of us Knight owners here in manila experienced the same problem, but it only happened once. The Compass Distributor here in manila replaced it with a new clutch

savosvk
03-31-2008, 11:59 AM
Two of us Knight owners here in manila experienced the same problem, but it only happened once. The Compass Distributor here in manila replaced it with a new clutch
:mad::arggg::confused:
what is problem???

liaan
04-01-2008, 07:07 AM
think bad batch

have look on RR forum.. lots of info on it.

L:

Max2342
04-14-2008, 05:29 PM
Maybe this helps http://www.raptortechnique.com/clutchrepair.htm i read that a while ago when i had a gohbee. He has tested a lot of clutches and did try to find the problem. So maybe its worth a read?

Ruff
04-19-2008, 11:14 AM
There was a bad batch. I have since replaced the clutch and have over 25 flight on it.

However, I am still waiting for someone to replace two of the clutches that broke within four flights.

Ruff

jontherooster
04-26-2008, 11:38 AM
Just Broke my 2nd clutch in 2 months. This one just had a new clutch liner installed 6 flights ago! :thumbdown:
The Only complaint on this Awesome heli BTW.:lol:
Guess I'm gonna get a TT clutch & try it out till my replacement clutch comes in.

jontherooster
04-26-2008, 11:55 AM
Just couldn't order a Raptor part for my Knight!! I'm sure I just got one of the first batches of shoe's.
So I bought me 2 Clutch shoe's from Modefo's!! :thumbup:

tapemonkey
04-26-2008, 05:04 PM
I've not had a clutch break, but I changed mine out for a Quick UK Raptor clutch. Not cheap, but does the job.

Go to http://www.quickuk.eu/site/index.html and search for "RAPTOR 30/50 Heavy Duty Clutch - V2"