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HomeAircraftHelicopterHelicopter Main Discussion › mroley bell 47 clutch
03-22-2015 06:13 PM  3 years agoPost 1
paulekins

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Dolgellau Wales

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Hi all
can any one tell me how thick the cork needs to be on the clutch on my Morley bell 47
as mine has worn out and needs replacing as it dose not specified in the manual

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03-22-2015 07:01 PM  3 years agoPost 2
payne1967

rrElite Veteran

uk

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you can replace the morley cork type liner with a modern type from align/hirobo/thunder tiger etc
i used a shuttle one in the morley 47 i had
you may need to sand the lining a little to stop the clutch dragging

www.alcesterhelicopterclub.bmfa.org

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03-22-2015 08:11 PM  3 years agoPost 3
paulekins

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Dolgellau Wales

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ok thanks for that
I will get one order tonight
thanks again

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03-22-2015 11:52 PM  3 years agoPost 4
CAndrewGreenrrNovice - Oxford, England - My Posts: All  Forum  Topic

Morley clutch lining....
Hi paulekins,
I think if you use Align or another type of friction material it will slip like a very slippy thing. People accustomed to modern helicopters with engine speed (i.e. mounted on the fan boss) clutches may not realise that the clutch is mounted on the intermediate shaft and runs 3 or 4:1 (guessing) slower than the engine, with correspondingly less centrifugal force so need the relatively grippy cork.
From memory it was about 1mm thick, as the shoes are separate parts not a one piece machined thing you won't run into problems with them taking a set.
I think Jim Davey posts on here as 'team davey' or something similar, you could ask him, back in the day he was a bit of a Morley expert along with Martin Briggs.

Andrew

Oh sorry I should have read payne1967's post properly as he clearly understands the transmission being as he owns one! Andrew

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03-23-2015 12:59 AM  3 years agoPost 5
payne1967

rrElite Veteran

uk

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yes the modern friction material will work
in fact it is better than the oe cork liner

www.alcesterhelicopterclub.bmfa.org

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03-23-2015 03:33 AM  3 years agoPost 6
teamdavey2001

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Sunnyvale, California, USA

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Well Hello Andrew!

Still flying a 300 actually, but it's electric now and no clutch.

I don't think you will have any difficulty with modern material either. Those individual shoes have plenty of pressure even at lower than engine speed.

Jim Davey

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03-23-2015 09:30 AM  3 years agoPost 7
paulekins

rrNovice

Dolgellau Wales

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thanks for all the reply's I have ordered some ALIGN - Clutch Liner (2pcs) HN6006AT - TREX 600
I hope these will be big enough for the job
time will tell
but I might order some cork strips just in case and to be authentic to the model

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