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T-REX 450 › Main shafts, are they all the same?
11-23-2009 12:50 AM  8 years agoPost 1
hawkrock

rrNovice

Stony Plain,​Alberta, Canada

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I just finished rebuilding my 450 se v1. I have a v2 head, waiting on delivery of a v3 sport head. I tried to replace the main gears with the new blue set #AHS1218-84. The main shaft fell right through the middle, didn't touch a thing. Did I miss something? Do the new sport and pro models have a wider shaft below the head? If so that means I have to change all the bearing blocks as well, and the main shaft to use these gears.

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11-23-2009 12:56 AM  8 years agoPost 2
Heli 770

rrProfessor

USA.

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You need the V3 main shaft. It's a little longer and has a stop on it.

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11-23-2009 02:21 AM  8 years agoPost 3
outhouse

rrVeteran

auburn ca

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First you dont need another mainshaft. there is no special V3 mainshaft.

the sport, the V1, and the V2 all share the same mainshaft.

The pro however uses a longer mainshaft and has the stop built into it. This does not fit on the other helis without modifacation.

OP it sounds like you didnt install the sleeve that goes in the new style one way bearing that goes with the new maingear.

[i believe your old one should work]

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11-24-2009 02:35 AM  8 years agoPost 4
hawkrock

rrNovice

Stony Plain,​Alberta, Canada

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I figured something was missing. Does anyone have a part number or a picture of this sleeve that ties all of this togeather? I don't want to order the wrong piece.

Thanks.

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11-24-2009 04:04 AM  8 years agoPost 5
hawkrock

rrNovice

Stony Plain,​Alberta, Canada

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O.K. I feel like a dingdong. The oneway bearing shaft daaaahhh!!
Followed by the sound of my head banging on the door frame.

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11-24-2009 05:21 AM  8 years agoPost 6
outhouse

rrVeteran

auburn ca

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I was wondering when you were going to come around

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T-REX 450 › Main shafts, are they all the same?
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