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HelicopterBeginners Corner › Trex 450 v2 head dampers
10-29-2011 01:34 PM  6 years agoPost 1
Bladecpnitro

rrApprentice

Ga

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Hey folks, I've ordered some Trueblood Trex 450 V2 head dampers for my EXI 450 and can't fly until they get here. Is there some O-ring I could pic up at Home Depot and use temporarily until my dampers come in?

Thanks

If its fixed don't break it.

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10-29-2011 02:55 PM  6 years agoPost 2
salrica

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Raleigh,NC

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I guess you can use the "O" rings kind.
like for the faucet kind. Plumbing section../
take the old dampener with you and try it, you might end up with 3 on each side of the rotor head.

Something like this :
http://www.readyheli.com/HS1266-Ali...et_p_34074.html

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10-29-2011 03:21 PM  6 years agoPost 3
Bladecpnitro

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Ga

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Yeah that might work. I just need enough to stop flush with the end of the main rotor housing right? This pic shows 2 - 6.5mmx2mm O-rings that comes with the Trex 450 V2 main rotor housing.http://www.readyheli.com/HS1248-84-...ad_p_37462.html

If its fixed don't break it.

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10-29-2011 03:44 PM  6 years agoPost 4
frgy28

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Santa Clarita, Ca.

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bladecpnitro
You can find an emergency "O ring" at the hardware store... It's just not going to be hard enough and maybe alittle mushy feeling. For a weekend of flying should be ok.... I said this because I have used industrial O rings on my 300's ... aka blade CP and the likes. They work fine for a few flights.... Keep an eye on them .

Imho ... The Trueblood are by far the best 450 V2 Dampers I have used... You'll like the responsiveness of the Heli...

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10-29-2011 04:28 PM  6 years agoPost 5
Bladecpnitro

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Ga

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I hope so frgy28. If the wind doesn't settle down around here I may not be needing any this weekend. I kept noticing my blade tracking was getting worse and worse and the more I looked into the problem I found that one of my stock EXI head dampers was completely gone without a trace. The other one looks a little worn but still has some life left in it. I cant imagine one being gone completely. The stock EXI head dampers are pretty soft.

If its fixed don't break it.

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10-29-2011 04:50 PM  6 years agoPost 6
salrica

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Raleigh,NC

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Don't forget to use the spacers for your dampeners.
http://www.readyheli.com/HS1266-Ali...et_p_34074.html

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10-30-2011 03:35 PM  6 years agoPost 7
Bladecpnitro

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Ga

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I picked up the smallest O-rings I could find at Tractor supply and couldnt get them pressed into the main rotor housing for nothing. I might stick them on a welding rod and spin them on a grinding wheel today to trim them down a bit.
Should the head dampers be cut flush with the main rotor housing? The stock EXI dampers stuck out about a mm.

If its fixed don't break it.

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10-30-2011 03:39 PM  6 years agoPost 8
Bladecpnitro

rrApprentice

Ga

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I picked up the smallest O-rings I could find at Tractor supply and couldnt get them pressed into the main rotor housing for nothing. I might stick them on a welding rod and spin them on a grinding wheel today to trim them down a bit.
Should the head dampers be cut flush with the main rotor housing? The stock EXI dampers stuck out about a mm.

If its fixed don't break it.

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10-30-2011 08:49 PM  6 years agoPost 9
Bladecpnitro

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Ga

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Grinding the O-rings down did the trick. I stuck them on a 16 penny nail and turned them while holding them against a bench grinder wheel. Worked like a charm. I have them in there now and waiting for the wind to settle down a bit and Im gonna take it out and try it.

I can't wait until the Trueblood dampers get here to fly, I want to fly today. LOL!

If its fixed don't break it.

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