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HelicopterMain Discussion › How long does your Clutch last/Trex 600
02-19-2017 05:02 PM  6 months agoPost 1
datidun

Key Veteran

N Ireland

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Mine broke today,just under a year old,using the stock clutch with the Trex 600 liner,think I will have to change to heavy duty Quick UK,clearance was good used two rounds of electrical tape.

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02-19-2017 07:23 PM  6 months agoPost 2
rrokman

Heliman

macomb,michigan

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Less clearance is best liner wears out quick align stock clutch and liner wear quick ,Lynx liner is best, Lynx clutch or quick uk is good.

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02-20-2017 12:58 AM  6 months agoPost 3
Four Stroker

Elite Veteran

Atlanta

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Clutches break because they have too much clearance and for no other reason. Start at 0.008" on each side and replace when it gets to 0.012". Stock clutch is fine. Do a search.

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02-20-2017 08:56 AM  6 months agoPost 4
datidun

Key Veteran

N Ireland

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Im gonna try the 700 liner,which is much thicker,I did a search stock clutch has loads of problems in the past,thanx for the info though.

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02-20-2017 08:46 PM  6 months agoPost 5
Andy from Sandy

Elite Veteran

Bedfordshire, UK

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New clutch bell. Took out the Align stuff and replaced it with the thunder tiger stuff.

Got the gap between shoe and liner a bit on the close side so the clutch starts to drag at quite a low engine speed but I can live with that.

The liner is about to start its 3rd season.

You don't need the QUK heavy duty you just need to get the gap right. Get the QUK by all means as it is good quality but if the shoe has to spread far to engage it will break just as easy as the Align one did.

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02-20-2017 10:10 PM  6 months agoPost 6
datidun

Key Veteran

N Ireland

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I have just fitted the Trex 700 liner,concerned its gonna grab at idle,as its a bit tight,think the 600 liner is to thin and does not last,might have to sand a little,did you use the Raptor 90 liner,wonder if its the same thickness as the 700.

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02-21-2017 05:58 PM  5 months agoPost 7
Andy from Sandy

Elite Veteran

Bedfordshire, UK

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I can't remember if the packaging mentioned any model. Just two pieces of clutch liner in the packet.

Sanding or truing up using a lathe or similar to get it perfectly round.

Once at my club a guy thought he could wear in a liner by doing what amounts to a hot start. It was great to watch especially as after just a few seconds he burnt it all away with clouds of dust. It had us all in stitches.

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02-21-2017 06:27 PM  5 months agoPost 8
Ladymagic

Key Veteran

South Korea

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I remember back when 600Ns were all the rave. I bought two of them back in 2007. Pilots used to say that the stock liner was too thin and was causing premature clutch failure on many machines...sometimes soon after maiden.

The general consensus was to replace the stock liner during assembly. A lot of pilots upgraded their clutch units all together. Some just changed out the liner with other brands. A few months after the release, Align started selling Gen2+ kits with a thicker liner...I figured the problem was solved.

I opted to change out both 600N liners with JR's heavy duty liner material and I have yet to have a clutch fail. All be it, the liner was a little thick to start so I had to dremel it down enough to get the engine to start and idle and then let the engine to level out any high spots and set the right gap.

Mellisa

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02-21-2017 09:16 PM  5 months agoPost 9
datidun

Key Veteran

N Ireland

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The last 600 liner I used was the blue one,there was talk that they brought out a black one,which is suppose to be slightly thicker,curious how are you guys measuring the gap between the liner and clutch,are you using some sort of Micrometer as a Caliper wont do the job,just letting other Nitro guys know the Quick UK clutch is not been made anymore,looks like Nitro is going to be left behind.

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02-27-2017 07:45 PM  5 months agoPost 10
Andy from Sandy

Elite Veteran

Bedfordshire, UK

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I just put a couple of wraps of electrical tape around the clutch and push it into the bell.

It squeezes the liner to the bell.

Some people make a proper tool out of plastic to do the same job.

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02-27-2017 10:34 PM  5 months agoPost 11
BeltFedBrowning

Key Veteran

Kansas City

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I have used Klingersil gasket material with great results. Many different thicknesses available. It looks like the same material the clutch liners are made from.

perfer et obdura; dolor hic tibi proderit olim

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02-27-2017 11:30 PM  5 months agoPost 12
HeliOCD

Veteran

San Diego, CA

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Who is driving the wife or me?
Ah....hahahaha.

Its all earth!

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02-28-2017 12:24 AM  5 months agoPost 13
JuanRodriguez

Elite Veteran

The Villages, Florida

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how are you guys measuring the gap between the liner and clutch,are you using some sort of Micrometer as a Caliper wont do the job,
Really ?? Guess I've been doing it wrong for years....

With a caliper, measure the clutch OD...... Measure the clutch bell / liner ID with oversized liner installed......

Chuck up the clutch bell in a lathe and turn the liner down until you get 8 thou clearance per side.... 16 thou total.....

Been there, done that and old enough to know better.....

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03-03-2017 12:37 PM  5 months agoPost 14
rspiegel

Veteran

Austin,TX South Buda

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Liner

With the 700 liner you have to dremel it down for more clearance.

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