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Home✈️Aircraft🚁HelicopterGasser Model RC HelicoptersOther › Predator dampers, less than 1 gallon
04-01-2010 12:23 AM  10 years ago
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flyinfriend

rrApprentice

North American continent

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Predator dampers, less than 1 gallon
Hi,

My dampers on my new Predator are shown below. They have less than a gallon on them. I took them out because I noticed looking between one of the grips I could see the damper had 'squished out slightly between the head and the large washer. Would anyone have any idea why they would look like this after less than a gallon of flying? I have the black dampers that I can put in but I don't want them getting chewed up right away either. The heli was flying fine.

What would cause them to do this? When I installed the feathering shaft, it wouldn't install properly with the plastic ball/collar it comes with so I removed it. It wouldn't go in centered with the ring on it. A couple of posts in RR (one I think from BillMe mentioned you can install and fly without it) so that is what I did. I am not a 3D flyer, this was from just flying around gently. The oil you see is tri-flow I used to lube them a little.

Also I have the large washer against the dampers and one smaller shim on each side.

Thank you for any help,

Tom
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04-01-2010 12:47 AM  10 years ago
smallplanes

rrElite Veteran

S.C. ,SSA

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It might be because it's not a Spectra G.haha just kiding i have no idea i just wanted to throw that in. I'm sure someone can help you. Did you buy the Pred new? My next heli will be a Pred.

Thanks and just kidding don't get mad
Ivan

Spectra G 26cc
Jewel
Bat 27cc
Trex 700<br
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04-01-2010 01:17 AM  10 years ago
flyinfriend

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North American continent

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Man smallplanes between you and my brother-in-law one of you should buy a Spectra for me so I don't have to endure all this suffering.
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04-01-2010 01:20 AM  10 years ago
oldfart

rrProfessor

Vancouver, Canada

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I believe the problem was that you lubed them with Tri-Flow. I believe it can attack certain types of rubber.Phil
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04-01-2010 01:38 AM  10 years ago
flyinfriend

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North American continent

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Thanks Phil for the reply.

That may be it. It is a new heli and I have only a gallon through it, but the head has been assembled on my bench for the last couple of months so maybe it have softened the dampers somewhat.

I have reassembled the head with the black dampers and added the plastic collar back on the spindle (it was easier to get in and I used silicone on it to get it in all the way to center). I also lubed the black dampers with silicone instead of tri-flow this time. I will see how these hold up. I think I am going to place an order for extras just in case.

Thanks,

Tom
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04-01-2010 02:22 AM  10 years ago
Manol

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Hermosillo, Sonora, Mexico

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The plastic ball/collar in the feathering shaft can be trimmed lightly with sandpaper to go in place, I think it keeps it´s purpose, and for lubricating the dampers, I have never done so, and I live in the desert with very high temps and ultra-dry ambient, never have any trouble with them except for normal wear as I do fly my Predator every day and even so, they last for months.
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04-01-2010 03:23 AM  10 years ago
jschenck

rrProfessor

La Vista, NE.

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For sure the Tri-flow did it in my opinion. My Predator dampers look great after a full season+ of flying. I use silicon grease to lube them, the kind used to assembling faucet grommets in your kitchen sink. You want no petroleum based products on the dampers.
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04-01-2010 03:28 AM  10 years ago
ppridday

rrKey Veteran

Detroit Lakes MN

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Uh oh.... my turbine and gas Pred's dampers are both lubed with Tri Flow... Checking tomorrow morning....
Paul
"There's someone in my head, but it's not me..."
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04-01-2010 01:47 PM  10 years ago
kogibankole

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albuquerque/ibadan

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on mine;
I have 3 stiffness shims and the washer on each side. I use the black rubber single piece dampeners on my FBL head and its solid as a rock, and the blade grips can still move very freely...the heli in my gallery

oh and i use the white lithium grease on my dampeners as well.
if im not blade bogging youll find me pack puffing
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