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HomeAircraftHelicopterKyosho Caliber/Quest Neo-Caliber series › Nexus 30 clutch rebuild
01-23-2010 03:38 PM  8 years agoPost 21
tommytt1

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Mercerville, NJ, USA

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How did you make out? Tom

I made a mistake once, but I was wrong?

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01-24-2010 01:51 AM  8 years agoPost 22
bensidus197217

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Richmond B.C. Canada

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Still waiting for the liner to show up. I did hpwever get a large chunk of bus brake shoe that I could turn down on my lathe to fit if worse comes to worse.Same material as clutches in the big stuff very brittle when thin but if I'm careful I may be able to make a usable piece. Any opinion on that idea I'd like to hear it.

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01-24-2010 02:02 PM  8 years agoPost 23
tommytt1

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Mercerville, NJ, USA

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I like the Idea! I had brake material in a clutch bell in an evo in the past, it never wore out. Many gallons of fuel with just about zero wear, and that is with a few hot starts thrown in. Tom

I made a mistake once, but I was wrong?

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01-24-2010 10:04 PM  8 years agoPost 24
bensidus197217

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Richmond B.C. Canada

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So are you saying that brake material has a longer lifespan than the clutch material strips? How about the shoes how well did they hold up?

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01-25-2010 07:44 AM  8 years agoPost 25
bensidus197217

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Richmond B.C. Canada

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Oookaaay! My last idea not a good one. Put the piece of brake shoe on my lathe and started turning it. At first all was well then I noticed that it was getting tougher and tougher to cut. So I took the piece out and I had managed to cut about 1/8 of an inch deep, then I looked at my bit! I wore about 1/16 of an inch off my bit, well that sure sucks. So as we speak I am patiently waiting for my strip of clutch material to show up

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01-30-2010 03:05 AM  8 years agoPost 26
bensidus197217

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Richmond B.C. Canada

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got it done
I got some clutch material for a Raptor30.Lucky they send you two pieces in a package cuz I promptly broke the first one. The second one I heated up and heated up a round container just smaller than the ID of the clutch bell. Then I carefully wrapped the liner around the container and waited till both cooled down. When I let go of the liner it sprang back to almost straight,so much for that idea.I carefully fitted the liner to the clutch bell epoxied the inside if the clutch bell and placed the liner in.I used the PVC pipe idea to hold it in place as well as used as many little clamps as I could to hold it till the epoxy dried. It looks good and fits good with about .005 clearance on the shoes. Just waiting for it to get dry enough to try it outdoors. I'll let you know how it goes!

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01-30-2010 02:51 PM  8 years agoPost 27
tommytt1

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Mercerville, NJ, USA

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Great! Now all you need is some good weather.

I made a mistake once, but I was wrong?

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02-04-2010 10:49 AM  8 years agoPost 28
bensidus197217

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Richmond B.C. Canada

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Still the same but a little better. I think I need a whole new clutch. I figure the bell and shoes are probably worn too far for new lining to fix. Anyone out there have a whole good clutch they want to sell?

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02-05-2010 12:14 PM  8 years agoPost 29
plck2

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"Louisiana U.S.A.

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should the clutch drum cover all of the clutch shoe?Clutch shoes all the way in won't allow for proper gear mesh.With about 2mm of clutch shoe not inside the bell all gears rotate smooth.After disasembly of clutch drum,bearing case,starter components i found i was missing 5x10x4 mm bearing on the underside of clutch drum plus the underside of bearing case was allowing the bearing to freely spin and so these parts are needed!the trick for the clutch liner is to cut it to proper inside diameter,circumference of clutch drum.Place two cut ends inside of drum,now 180 degrees push liner inwards towards the two cut ends now push liner completely inside of drum it should pop securely to inner clutch drum wall.now u practiced it,take it out and epoxy it in.I may have a liner to spare if u need it.

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02-05-2010 02:08 PM  8 years agoPost 30
ShuRugal

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Killeen, TX

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do you have a washer between the fan and the motor? if not, you need to have one. among other things, this will get the shoes high enough to reach fully into the bell.

AMA 700159

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02-05-2010 05:26 PM  8 years agoPost 31
Damper

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Point Blank TX USA

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Might want to email midland helicopters UK maybe they locate a set of shoes. They have a stock of other nexus parts but the part number I used for the clutch shoe was H3330 it might be diiferent. I might have a spare set not sure I pm you if I do.

Full Throttle Spooning Leads To Forking

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02-05-2010 11:50 PM  8 years agoPost 32
bensidus197217

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Richmond B.C. Canada

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slipping
The shoes are fully iside the clutch bell when everything is bolted it feels like the rotation of parts is free no binding I don't think. The gear mesh seems good but then again I never went all the way around and checked lash over the entire main gear. I will go and check that out later. Is it possible that the bell has worn enough to make the distance too far for gripping? Or if the clearance seems to great should I tweak the shoes out a little to take up the space.Does shoe rotation in relation to drum rotation make a big difference. I know with brakes one shoe wears more than the other because that one becomes energized by the drum rotation and tries to grab it and pull it in the direction away from the axle. Yes the lining is in tight I cut it so that the linging snapped into place with no air gaps on the ends and after clamping and gluing securely it sat tightly against the bell

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02-06-2010 03:22 AM  8 years agoPost 33
ShuRugal

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Killeen, TX

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break shoes wear asymmetrically because the spread at the same end, so one spreads "into" the rotation of the drum, and one spreads "away" from rotation. the clutch shoes spread at opposite ends, both spread "away" from the rotation, at the trailing-edge, so they don't get extra spread from the rotation force.

AMA 700159

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02-06-2010 04:25 AM  8 years agoPost 34
bensidus197217

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Richmond B.C. Canada

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clutch
Ah I get it. So maybe what I have is a binding problem somewhere. Could be misalignment or dry bearings and as I can see these things take about 3/4 throttle to get off the ground with a thirty size engine. A tear down sounds in order

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02-06-2010 04:32 AM  8 years agoPost 35
ShuRugal

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Killeen, TX

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another thing that just ocurred to me. when i had a liner go, the clutch shoes picked up a fair bit of aluminum on the contact areas, and this additional material caused them to drag on the new bell/liner even when the clearance looked good. about a minute with a fine-cut file on each shoe, and the unwanted grabbing went away.

AMA 700159

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HomeAircraftHelicopterKyosho Caliber/Quest Neo-Caliber series › Nexus 30 clutch rebuild
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