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Hurricane 425 Discussion and support of the Gaui Hurricane 425 |
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05-24-2011, 09:11 AM | #61 (permalink) |
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Join Date: Oct 2009
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The 10th is the holy roller that will keep it all together nicely.
Good luck with the test flight, dont forget to treat us a video My Gaui flights are prosponed for now, waiting for a new gyro to arrive and am having fun with a 250. Problem is my home customs is intercepting and holding packages for a yet to be determined time period. I hope the gyro slips past it. i can do without the hyjacked spare parts and sim cable for now.
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05-24-2011, 03:52 PM | #62 (permalink) |
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OWB Failure
I saw some info on the net about owb's.
It stated that the owb has to have some play to center itself when locking. The Gaui setup would allow this apart from side loading from the mesh. A little up and down will help .01-.02mm. The blocks on a CF frame should be tightened also allowing this small amount of up & down float otherwise it just rubs against the shim washers, a small amount of lube on the shim washers helps. I found the spacer supplied with the OWB shaft can have small variation in thickness, different spacers can affect up & down play on the 1st gear hub also affecting the OWB shaft vertical play. 0.02c |
05-26-2011, 12:00 AM | #63 (permalink) |
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Join Date: Sep 2010
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no luck
i do have a small amount of up and down play on the owb the vxb owb is holding up but for how long? i have tore down and rebuilt my frame 3 times i even took them to work and used a new dry dye penatrate to find any cracks on the frame, none it is flight worthy after taking measurements on a cmm and calculating the location of the blocks on solid works at my job, the bottom line is the bearing blocks can move up and down,with in the hole size in the frame and the major diameter of the threads i thought about tightening the screws down but there is a limit on the torque that can be applied due to the threads in the aluminum bearing blocks, too much will simply pull the threads out. pinning will also not work as i need the correct location for the blocks if i pin them wrong then i am stuck with them in that location so do i just buy new fram sides or just move on? it is something i have been thinking about , i am not one to give up but after seeing how my local hobby shop has not helped me at all with a kit i bought there i dont think it will be wise to keep this heli what if i have another issue??? stuck in the same boat again? i could of easliy bought online and got it cheaper, but i was promised tech support at the time of the purchase, now that i see how it really is, i will buy online from now on, unless im in a bind,,, period |
05-26-2011, 01:46 AM | #64 (permalink) |
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Join Date: Feb 2007
Location: England
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My bearing blocks don't move at all - I'm sure that's where your problems are coming from. Have you priced out how much new side frames would cost ? Do you know why / how the bearing blocks have come loose in the frames ?
Cheers, Mike. |
05-26-2011, 01:53 AM | #65 (permalink) |
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Join Date: Sep 2010
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I compared to a new frame at the store
Not much diffrent, I was told the holes in carbon do vary. Some come out good, some bad |
05-26-2011, 02:14 AM | #66 (permalink) |
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Join Date: Feb 2007
Location: England
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My bearing blocks don't move at all - I'm sure that's where your problems are coming from. Have you priced out how much new side frames would cost ? Do you know why / how the bearing blocks have come loose in the frames ?
Cheers, Mike. |
05-26-2011, 02:28 AM | #67 (permalink) |
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Join Date: Dec 2008
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Wow fusions, sorry to hear about all your troubles and frustrations with your Hurri. I have never had a bearing issue with my plastic framed 425 or my 550. I recently maidened my HeadHunter framed Hurri running 500mm blades and medium length boom and it flew great.
Not sure when Scott will have all the metal parts for more HH frames, but, those frames seem to solve all of the problems that people have with the stock frames.
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I don't need the latest and greatest. I just need more time to fly what I have. Align 450 Sport V2, Gaui 200, Gaui 425 x 2, "HeadHunter 500, Gaui 550, all Flybar'd |
05-26-2011, 02:36 AM | #68 (permalink) |
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Join Date: Sep 2010
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I went a few months with little or no problems
Got around 150 good flights Good times I tell yea, wake up fly, get home from work fly Almost every day , the heli still looks brand new |
05-28-2011, 07:21 PM | #69 (permalink) | |
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Join Date: Mar 2010
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Quote:
BTW, I asked VXB what lubricant to use on the OWB and they said that any standard bearing grease will be fine. Currently I'm running mine dry, which I don't like doing.
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05-28-2011, 11:57 PM | #70 (permalink) |
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Join Date: Sep 2010
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Hmm, I asked a while back and was told not to
, maybe something changed |
05-29-2011, 12:40 AM | #71 (permalink) |
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Join Date: Nov 2007
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I wouldn't oil them to much,the only time they are free wheeling is when you are spooling down or practicing autos,which isn't very much,so you wouldn't think they'd need much lube,just what they come with.
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05-30-2011, 11:38 PM | #72 (permalink) |
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Join Date: Mar 2010
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The VXB OWB arrives dry, unlike the Gaui kit OWB.
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Gaui X2 FES ZYX, Gaui X3 MB, Gaui X4 II VBar, Gaui X5 FES MB 250 DFC ZYX, 450 DFC Sport MB, ALZRC 450L Pro VBar, Devil 450 FAST VCTRC FBL 500E DFC Pro VBar, 500E SDC ZYX-S KDS 550 VBar, 550E DHPS VBar, 550E DFC Pro VBar, 700E DFC HV iKon |
06-04-2011, 11:56 AM | #74 (permalink) |
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Join Date: Dec 2007
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My bearing siez... how do i tell,
I grab it on the head.turn both CW & CCW rotation. the motor is engage
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06-06-2011, 01:40 AM | #75 (permalink) |
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OUCH, I was flying some really big, REALLY fast circuits with my 550, loading up the heli fairly well with really high G turns, fast tictocs, hard stops, etc.... I got about 2-3 minutes into the flight and then this happened. It caused the 20t gear to spin free from the OWB itself which saved the OWB. I was able to auto in fine. I have been flying the snot out of this thing lately, and the other day had the top bearing on the OWB shaft disintegrate. Actually I had been hearing a squeaking sound for the last 4-5 flights but thought it was gear chatter from the CC Gov (I shoulda done my routing maintenance i know...I could have prevented this
click for a better look I had another OWB where the gear was fine, but the OWB inside was melted so chucked it in my vise and used the good OWB to press out the bad OWB, effectively taking its place comfortably inside the gear. A little of the green sleeve retainer on the way in and im back in business.
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01-17-2013, 07:33 AM | #76 (permalink) |
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Join Date: Oct 2010
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one way still is problem
My plastic 425 has a very few flights since I am not an expierinenced pilot yet. The first 19T OWB started to troubles in less then 10 flights. I change with a 20T and I had no problem for a few flights but did not fly the heli for a period.
Now the problem is that the OWB slips during startup but not always. I changed also the original 19T OWB bearing with the VXB but the problem is still valid. I use only the one washer in the bottom and I haven't overtight the bolts of the frame around the OWB as I have read in previous posts. Any suggestions PLEASE |
01-17-2013, 07:57 AM | #77 (permalink) |
HF MR Support
Join Date: Aug 2008
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...Try a drop of Tri-flow oil in the bearing
Did you change the shaft and bearing at the same time? you might pull it out and use some scotch brite on it and re try it...I have had no trouble since I changed all mine to 20T OWB's(and new shafts)
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01-17-2013, 11:36 AM | #78 (permalink) |
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Join Date: Oct 2010
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I thought that the shaft is no issue. I always put some drops of triflow, thought I think there should be a special OWB grease. I will try with scotch sponge and a new shaft.
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01-21-2013, 12:08 AM | #79 (permalink) |
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Join Date: Jan 2009
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How do I tell if the OWB is going bad? Can I check this by turning the head with the power off or something?
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01-21-2013, 07:51 AM | #80 (permalink) |
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Join Date: Aug 2008
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When the OWB starts to go bad, you will see and hear the motor spin and temporarily not "Catch" when spooling up. You can hold the main gear while trying to turn the head back and forth and it catch immediatly in one direction.
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Gaui 550(Need GOT ONE!) / KK2.1.5 steveis pro/ZMR250 / Alien 450 camera ship / HJ 450 all W/KK2.1.5 Steveis pro Estes Nano/ Hubsan X4 / Syma X1 AMA 953414 CONTRIBUTOR, TEAM LAVAQUAD |
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