RunRyder RC Helicopter Topic - T-REX 600N New 600 nitro clutch won't engage

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Align T-REX 600N 700N > T-REX 600N New 600 nitro clutch won't engage

ringram2077
Senior Heliman
Location: Birmingham, AL

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Just replaced my clutch with part number HN6028. Same liner as before. The old clutch worked great for quite a few flights before it broke. Problem is the new clutch is really stiff compared to old clutch and I have to make some serious revs before it even starts to engage. I can't see how this can possibly work. Anyone had an issue with this part ? Didn't find anything with a search.

Thanks

11-03-2009 09:01 PM

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inkspot1967
rrProfessor
Location: cranston ri.

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thats strange never heard that one before

Rave 4s soon Total-G fbl

11-03-2009 09:04 PM

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Flying Tivo
Veteran
Location: Monterrey,NL,Mexico

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New 600LE

My new 600LE came with a little larger gap between the shoe and the bell. What i do is take the liner off, cut a strip of aluminum soda can and epoxy it to the bell, when it dries, then i glue the clutch liner and the gap is about right. If its a little tight dont worry because after a few spool ups, it will grind itself down to the exact gap.

Felipe

If life throws at you lemons......Squirt some lemon juice in the eye of your enemy!!!!

11-03-2009 10:52 PM

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2LTime
Veteran
Location: Walworth,NY

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Perhaps your clutch broke because your liner is either worn and the gap is too big or defective and the gap is too big. either way, I would fix it or your new clutch won't last long.

Jeff

If you can't learn to do it well, learn to enjoy doing it badly.

11-04-2009 03:26 AM

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scamp62
Veteran
Location: Shermen Oaks, CA

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I installed a Rapter 90 clutch liner in mine, A lot of meat in that liner, works great !

Dimmit..I can stop this anytime I want..no..really I can

11-04-2009 03:31 AM

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ringram2077
Senior Heliman
Location: Birmingham, AL

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Thanks for the replies guys. My liner is pretty much new so if it is too loose then that is the way it came. I believe that tightening up the gap is the only way to fix this. The soda can trick is certainly doable. Is the Rappy 90 liner thicker that the stock liner ? if so that might be the easiest solution.

11-04-2009 12:25 PM

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jschenck
rrProfessor
Location: La Vista, NE.

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Measure the clutch and measure the bell inner diameter. It's the only way to know what your gap is. If it's more that .012 then it's too much and you'll break another clutch. Set your gap by gluing the liner in using the clutch wrapped in electrical tape as a guide. Gap should be good then.

.. P-gas, T700, V50c/u, R50T, T4/250 and a Cricket ..

11-04-2009 01:16 PM

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R.J.
Senior Heliman
Location: SF bay area, CA USA

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Quote
Is the Rappy 90 liner thicker that the stock liner ?

Yes it is, but you should measure the gap as jschenck says. Align has different diameter clutches out there as a fix for their clutch to bell gap, so you really need to measure to see what you've got. Gap of .012" (difference of diameter between clutch and liner in bell of .024"

is good as jschenck said.

11-04-2009 05:25 PM

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ringram2077
Senior Heliman
Location: Birmingham, AL

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OK on the 12 thou clearance. I'll check that and correct accordingly.

Thanks again

11-05-2009 03:44 PM

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Wimbledon99
Senior Heliman
Location: UK

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Hi,

I have the same issue with a brand new 600 LE

The Shoe is 41.4mm and the Bell Liner is 42.3mm

I need to get up past 1/4 stick before the clutch engages

I think I need to install a new liner

3D?? No - just another input error!!!

03-02-2010 08:43 PM

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Four Stroker
Veteran
Location: Atlanta

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I just built a new 600. The clutch liner has way too much clearance. It should be no more than 0.010" per side. I put some of that Garlock 10 stuff in it and bored to 0.0075" per side. But it's still winter.

03-02-2010 09:09 PM

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jay hall
Heliman
Location: Sherwood, Ark.

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I have replaced the clutch liners in both my 600's and 700 with the Raptor 90 liner, no more problems.

Jay Hall: President Henderson RC Flying Club.

03-02-2010 09:11 PM

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Wimbledon99
Senior Heliman
Location: UK

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My 700 is fine but I hear what you're saying. Off to order some 90 liners now

Cheers

3D?? No - just another input error!!!

03-02-2010 09:14 PM

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jschenck
rrProfessor
Location: La Vista, NE.

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yep, just replaced the liner in my 700 with a Raptor-90 liner. The gap is a much better .25mm vs. the original .5mm (way too big)

BUT - the Raptor liner is about 5mm too short! I ended up cutting a chunk off the 2nd liner that came in the pack to make up for the gap. Also way too wide but that's not a big deal to trim off the excess once it's set in the bell. I used two wraps of black electrical tape on the clutch to set the gap. Very happy with the results. Haven't flown it yet.

.. P-gas, T700, V50c/u, R50T, T4/250 and a Cricket ..

03-03-2010 03:45 AM

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Align T-REX 600N 700N > T-REX 600N New 600 nitro clutch won't engage

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