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HK250GT Motor Pinion Grub Screw |
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addiictedd 
Platinum (GB) USERID: 511164 Bargain Addict! 
Joined: 20/May/2010 Online Status: Offline Posts: 55 |
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 Topic: HK250GT Motor Pinion Grub ScrewPosted: 21/May/2010 at 1:40am |
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I seem to have misplaced the one that came with the kit, and i can't seem to find any spares in the kit either, can anyone confirm? Also if anyone has any recommendations on an alternative while i wait for a new pinion to be shipped out that would be awesome!
Thanks
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jombo
Platinum (US) USERID: 197070 HobbyKing Constituent 
Joined: 07/May/2010 Location: CT Online Status: Offline Posts: 136 |
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Posted: 21/May/2010 at 7:59am |
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my 250 needs to be glued on , is your pinion tight on the shaft if it is you can use red loctite and it wont go anywhere |
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addiictedd
Platinum (GB) USERID: 511164 Bargain Addict!
Joined: 20/May/2010 Online Status: Offline Posts: 55 |
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Posted: 21/May/2010 at 3:53pm |
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nope that's the problem! i have some new pinions that will fit on the way, but i wanted to test idle up etc on it and get the heli all setup while i wait for it to arrive! i'm using the turnigy 2627-4200kv motor so it has a 2.3mm shaft, and you get the 2.5mm pinion by default!
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jombo
Platinum (US) USERID: 197070 HobbyKing Constituent
Joined: 07/May/2010 Location: CT Online Status: Offline Posts: 136 |
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Posted: 22/May/2010 at 12:41am |
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i got ya , i got the 250 plastic version and the same motor and it glued on. i didnt realize the GT had a bigger hole in the pinion.
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Mattyc
Platinum (NZ) USERID: 8928 HobbyKing aficionado 
Joined: 12/May/2009 Location: Ak, New Zealand Online Status: Offline Posts: 254 |
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Posted: 21/Jun/2011 at 4:27am |
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did you track down a pinion that fits this motor? I have the same issue
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Matt
People who can not solder have no business flying RC aircraft :P |
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marc78
Platinum (GB) USERID: 730346 Newbie 
Joined: 22/Dec/2010 Online Status: Offline Posts: 1 |
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Posted: 21/Jun/2011 at 5:27am |
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Have a look at the Firefox parts, there are a selection of 2.3mm pinions that fit the motor. Here is a link for 1 of them.
http://www.hobbyking.com/hobbycity/store/uh_viewItem.asp?idProduct=9252
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Mattyc
Platinum (NZ) USERID: 8928 HobbyKing aficionado
Joined: 12/May/2009 Location: Ak, New Zealand Online Status: Offline Posts: 254 |
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Posted: 03/Jul/2011 at 1:03am |
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Ah I found a pinion locally in New Zealand for $4 from Hangarone.co.nz
It was a press on one, had to cut the 2627-4200kv shaft down with the dremel, then used red loctite and the vise to press the pinion on. its stayed put for a few flights now, here's hoping it stays that way |
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Matt
People who can not solder have no business flying RC aircraft :P |
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Nikkolover:-)
Platinum (NO) USERID: 805806 Newbie
Joined: 02/Apr/2011 Online Status: Offline Posts: 1 |
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Posted: 07/Jul/2011 at 5:07pm |
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I cut a small square out of my red bull can (yes it was getting very late...). Wrapped it around the axle and used a pair of plumber`s plier to press the pinion on. It was a tight fit, but i don`t even need the grub screw now. Make the can square a bit higher than the axle, and cut of the exessive after pressing. Makes it easier to enter the pinion on the axle. Happy flying!!!!
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