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HelicopterJR Heli Vibe 90/50, Sylphide 90, GSR260 › Vigor Clutch - one way bearing
12-08-2004 11:43 PM  13 years agoPost 1
Club Fed

rrNovice

San Diego, CA

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Fellow Vigor owners:

I have thrown away 3 Vigor clutches due to the one-way sprag bearings failing. Each clutch was perfectly fine but unusable when the bearings stopped working properly, and began producing a nasty sound when trying to start the helicopter. Does anyone have a solution for replacing the one-way bearing, because I tried heating the clucth and removing the bearing. I don't have a bearing press and the bearing would not move.

Has anyone replaced their JR Vigor clutch with any other brand of clutch. If so, which brand and part number? I am looking for suggestions because $50 per clutch is starting to add up, on top of the fact I also have to throw away clutches that will work fine if they had a good one way bearing.

Thank for your help.

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12-08-2004 11:48 PM  13 years agoPost 2
Saint728

rrProfessor

Honolulu, Hawaii

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Get yourself a regular clutch without a oneway bearing in it. Then use a starter shaft with a oneway bearing on that. I've heard of people doing that, but I don't recall what clutch they were using? I think it's a K&S clutch?

Take Care,
Cheers, Patrick

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12-09-2004 12:13 AM  13 years agoPost 3
tym2fly1

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VA

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I'm assuming the engine and clutch bell assembly are aligned properly. One can check this by holding the start shaft in place while turning the fan in the counter-clockwise direction (looking from the top) and noticing how free it is. It should spin freely then you know the engine is aligned with the clutch bell properly. It could also be a bad batch of bearings. I would contact Len Sabato at Horizon as he has always been very helpful with problems I have dealt with.

If you are flying a 90 size engine in your Vigor the one-way bearing in the clutch is not really large enough to handle the starting loads (compression) of the 90 size engines. I noticed mine started to make a definite squeak sound when you first hit the starter after I switched to a 90 engine but I have not had one fail. The new Vibe (90 size Vigor CS) that is scheduled to be released in early '05 has a new clutch with a heavier duty one-way bearing. The start shaft may be larger in diamter as well(?) It also has a heavier duty one-way bearing in the auto hub in additon to several other improvements designed to handle the 90 size engines.

Tim

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12-09-2004 12:35 AM  13 years agoPost 4
Club Fed

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San Diego, CA

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Vigor Clutch

Saint728 and tym2fly1:

Thanks for the advice. Tim I will contact Len Sebato and see if he has any suggestions. I am using a YS61 and I checked and rechecked the alignment many times because I thought it was the alingment as well. Unfortunatley, I have experienced the problem in three different Vigors at different times. Saint728 I like your idea of using a clutch without a one-way bearing and using the one-way bearing in my starter wand shaft. That would eliminate the problem completely. I will try to look up the K&S clutch.

Again, thanks for the help.

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12-09-2004 04:35 AM  13 years agoPost 5
Furious Predator

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Kitchener, Ontario, Canada

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I'm not sure why, but i know someone with a Vigor who actually used a direct drive, no one way bearings at all, the start shaft always spins with the engine......i'm still trying to figure out why though
i'm using a YS80 and this is the first i have heard of that probalem, i think its strange it happens on 3 different machines....

Shawn
Team Leisure-Tech
Team HelixRC

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12-09-2004 04:57 AM  13 years agoPost 6
Secret Squirrel

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New Zealander living in Melbourne, Australia

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This will happen if you don't use a good starter (ie the starter is not strong enough to turn the engine over convincingly), or if the engine and clutch are not aligned properly.

If you've gone through three clutches like this, one or both of the above is your problem. My 90 CS has had hundreds and hundreds of flights on it's clutch with no problem, but I do take a LOT of care to ensure the clutch and engine are lined up correctly. If they're not, then you'll get bearing failures.

Si

-------------
Simon Lockington

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12-09-2004 05:56 AM  13 years agoPost 7
Club Fed

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San Diego, CA

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Vigor Clutch

I will check the alignment after I reinstall the new clucth. I have checked the alignment my other two and the alingment looks good. Other than eyeballing it, is there any other way to tell if the alignment correct?

Also, has anyone ever replaced the sprag bearing in a Vigor clutch? If so, how did you do it.? I would like to try before throwing away the currrent clutch with the bad one-way bearing.

Thanks for the help.

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12-09-2004 06:26 AM  13 years agoPost 8
Secret Squirrel

rrKey Veteran

New Zealander living in Melbourne, Australia

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tym2fly1 described the process I used to do it.

Si

-------------
Simon Lockington

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12-10-2004 01:50 AM  13 years agoPost 9
LarryM

rrNovice

Callahan, Florida

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Club Fed, I had a similar problem with my Ergo 60 sport. It has a similar clutch, just doesn't have the holes that the Vigor has. Anyway, I went through three bearings in short order after I started running an OS-91. I found out that the roller separators in the stock one way bearings was cracking and making a screeching sound and slipping and/or locking up on the start shaft. I went to a bearing house here in Memphis and they crossed the stock Singapore bearings to a German made bearing. Works great now, keep the bearings lubed with automatic trans fluid and they will work and last. I replaced the bearings with a small bench press, but a threaded rod and nuts with a socket to pull through will work just fine, be sure to get the direction right before you press in the new one. Hope this helps...
Larry

Larry

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12-10-2004 08:58 AM  13 years agoPost 10
Club Fed

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San Diego, CA

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Clutch

Larry:

Thank you for the response and info. You had the exact same problem I am currently experiencing. Can you give me the name of the bearing store where you purchased the German bearing, and the part number if you still have it. I will try to remove the bearing again using your method.

Thanks again,

Rod

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12-13-2004 03:12 AM  13 years agoPost 11
LarryM

rrNovice

Callahan, Florida

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Club Fed, I get all of my replacement bearings at Memphis Bearing company here in Memphis. They are a vendor no different than any other that wholesales bearings, you may have a company in your town. I have had problems with the one way bearing on the main shaft as well. It seems that the stock bearings from singapore did not stand up to the 91's power. The part numbers for the good bearings from Germany are:

Start shaft--- INA part no. HF0612 1372173

Main shaft---INA part no. HF1416 791113

These bearings are German made and so far have worked well. Be careful in pressing in the new ones, as it is easy to crush them. For the clutch bell, I put the new bearing in the freezer for an hour, then set the clutch bell on top of a naked light bulb until it was almost too hot to handle with my hands. The bearings just went in with very little force needed. Again, be certain of the direction you place them in, don't ask how I know !! Good luck, hope this helps you....

Larry

Larry

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12-29-2004 04:00 AM  13 years agoPost 12
brown4729

rrNovice

Elmira, Ont, Canada

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one way bearing

I had the same problem, with my 90cspec in my Vigor! what I did was to mod the clutch shoe by boring it out to 10mm and inserting the next size INA clutch bearing. then I pressed a bushing on the 6mm drive shaft to make it 8mm, I have not had a problem since, the clutch bearing is 10mm OD and 8mm ID. I also used a shaft pressed into the clutch shoe with no problems "alignment is Critical. It helps that I am a toolmaker by trade! p/n is HF0812 INA if you use this bearing you will not have anymore problems!

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HelicopterJR Heli Vibe 90/50, Sylphide 90, GSR260 › Vigor Clutch - one way bearing
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