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Autography FlightPower . Advantage Hobby . Revolution Models

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Miniature Aircraft Nitro/Gas Helicopters > changing the bearing in clutch on fury....
 
 
av8er
Senior Heliman
Location: NH, USA

Has anyone changed the bearing in the factory assembled clutch? There are a couple of shims above the bearing, and one seems to allow the clutch to lock down fully...is there a reason for the second? the bearing appears to be the same thickness....(stock singapore vs boca)....any other tips appreciated also.
04-03-2002 Over year old.
 
 
Horacio
Veteran
Location: Mexifornia

My tip-Send it in!!!! Mine went bad and I didn't want to risk messing it up and buying a new one(clutch)! MA not only changed my bearing and clutch shaft, they put a new liner in all for nothing!! Can't beat that! They also turned it around in 2 days!
Thankx MA...STILL THE BEST!! (except when it comes to keeping up with demand )
04-05-2002 Over year old.
 
 
Augusto
rrAdvertiser
Location: San Diego, CA

Having learned from in this site the trick they use at MA to get them out just yesterday I went to Home Depot and got myself a $29 butane gas torch with auto ignition.

I went home and started it. I used it on the clutch bell and the pinion.
It took literally a few seconds and EVERYTHING fell off everything by itself. What a pleasure! I thought it was going to be very difficult but nope it all fell of the holes. All the bearings and the pinion got lose and I unscrewed it by hand!.

So for everyone out there trying this just go ahead it's pretty easy.


Augusto

Avant Aurora Ultimate
04-05-2002 Over year old.
 
 
FlyinBRicK
Heliman
Location: Hamilton NZ

Just a reminder....You guys are waving Gas tourches over aluminum arnt you?. I have done the same, Aluminum becomes a liquid very quickly.

I would rather use a heat gun or similar.

Regards.
F.B
04-05-2002 Over year old.
HOMEPAGE  
 
 
Jeff H
Key Veteran
Location: Cincinnati, OH

Don't worry about melting the AL with a torch. AL melts at roughly 1200 F, and a propane torch only burns at about 700F and MAPgas at 1000F or so.
04-05-2002 Over year old.
 
 
FlyinBRicK
Heliman
Location: Hamilton NZ

i will say that you are wrong.

I have a small pencil type blow tourch and have accidently melted the side of an old diesel model engine's carby while trying to remove a broken needle.

Maybe it was an aloy of some sort?

All look'd good, and then i knocked it, and it all just caved in .. i was like WHAAAAAAAaaaaaa.

the engine was an old DC ( i think thats it) that was aparantly around 50 years old im told( maybe longer?). its since been sold on, but i think ive still got pics of it. had a nice anodised blue head.

Thanks.

F.B
04-05-2002 Over year old.
HOMEPAGE  
 
 
Jeff H
Key Veteran
Location: Cincinnati, OH

I did not say anything about Blow torches, heck even a pencil blow torch can reach 2400F. Butane and Acetylene/Oxygen torches burn alot hotter than propane.

It is simply a matter of knowing if your flame is hotter than the melting point of what your trying to heat up.

The reason that your carb looked good on sight was because the outside of AL is an Aluminum oxide, and that stuff is tough, practically need a plasma cutter to cut through it, its melting point is way up there.
04-05-2002 Over year old.
 
 
Phil Cole
Veteran
Location: Redwood City CA

Carburetors are typically made of an alloy designed for easy die casting. It has a very low melting point, and flows well in the mould, but has very little else going for it.
04-05-2002 Over year old.
 
 
Dr.Ben
Elite Veteran
Location: Richmond, VA, USA

I've physically been in the MA shop when they've been rebuilding clutch assemblies and blocks. Whether you use an industrial heat gun or a small propane torch, you will not melt an X-Cell ali clutch bell or bearing block with any reaonable attention to application. I used 603 retaining compound to put my assembly together. Later on I had to get it apart. I had used a lot of the loctite and primed as well. Let's just say it was in there for keeps. I had to hold the torch on there for a good long time to break down the loctite. Didn't discolor the anodizing, let alone melt the block. The 6061 ali is good stuff.

Use you head; you'll be fine.


Ben Minor
04-05-2002 Over year old.
 
 
av8er
Senior Heliman
Location: NH, USA

yes it does come apart easy, but i'm actually wondering about the shims? Maybe they threaded the clutch differently, but mine locks down fine with one, does everyone have 2 in there? seems like an extra, but there could be a reason???
04-06-2002 Over year old.
 
 
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Miniature Aircraft Nitro/Gas Helicopters > changing the bearing in clutch on fury....
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