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HelicopterGasser Model RC HelicoptersOther › Walbro WT-643 Problem - Now Something Else
09-05-2009 08:25 PM  8 years agoPost 21
rbort

rrProfessor

Franklin, MA - USA

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I didn't say anything about the 8311...!

All I said above is those servos I tried on my Spectra and out of those the 9252 did extremely well so I recommend it. The others didn't last as long. You might get good luck with an 8311. Try it, count the flights, and then you'll know how long it lasts and if its worthy you can report back and tell us here.

-=>Raja.

MA 1005 Hanson 280, 4129 flts
Spectra 27 3DMax, 3187 flts
Whiplash V1 Hanson 300, 1425 flts
Whiplash V2 Hanson 300, 185 flts

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09-05-2009 08:37 PM  8 years agoPost 22
carpman

rrVeteran

Spain

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Hi Graham

Same here, I have the linear throttle linkage set up but a linear throttle curve was way too high...

Don't worry about it, set the GV1 up so you can turn it on and off (poor mans tach) and fine tune your curve that way. With my throttle servo playing up I don't really know where I am now...

This throttle servo has really got me now I plugged a S9452 in, worked perfect, plugged the S9252 back in and that works fine now, full range without the "free wheeling" effect at low throttle/low trim. So really confused now, but will still get a new servo. Might try this one again as I am only back to pussy flying with it!

KEVIN
Trex 500ESP | Trex 600NSP | Trex 700 Gasser | MA Spectra G

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09-05-2009 09:25 PM  8 years agoPost 23
4 stroke flyer

rrApprentice

Dowagiac,MI

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When you say free wheeling do you mean that you can turn the servo wheel with no moving of the gears? If so then maybe it has a gear going bad.
As forthe Mal linkage set up. I use this also, and it is not perfectly linear. But mine is close. I had to lower the numbers on mine also. Good luck

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09-05-2009 10:00 PM  8 years agoPost 24
carpman

rrVeteran

Spain

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Hi 4 stroke flyer

Well firstly not sure if you read all the posts but it doesn't do it now

When I mean free wheeling, this only happened (its stopped now) at full low throttle with full low trim and anything over 100% on ATV's. No broken gears inspected them and they all turn when this happens. As soon as you reduce ATV or trim it locks solid and works as normal...

Was going to video it, but can't now, although I don't think I have seen the last of this.

I think it is something to deeper inside the electronics somewhere, dunno what makes them work...

KEVIN
Trex 500ESP | Trex 600NSP | Trex 700 Gasser | MA Spectra G

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09-06-2009 02:02 AM  8 years agoPost 25
rbort

rrProfessor

Franklin, MA - USA

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Whatever it is

If you suspect it, REPLACE it. Don't trust your 2000+ dollar bird to a failing servo. Its a better feeling all around when you take off knowing that everything is right than wondering all the time "is my throttle servo going to get stuck today?" There is no enjoyment is this type of flying and if it goes in for that reason you'll be very upset with yourself.

Send it back to Futaba....no wait don't send it to them they are ripoff artists you'll pay more than its worth to fix it. JR on the other hand will replace it for FREE most likely.

-=>Raja.

MA 1005 Hanson 280, 4129 flts
Spectra 27 3DMax, 3187 flts
Whiplash V1 Hanson 300, 1425 flts
Whiplash V2 Hanson 300, 185 flts

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09-06-2009 08:36 AM  8 years agoPost 26
carpman

rrVeteran

Spain

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No worries it will get replaced, I may drop in the S9452 while I wait for the new one to arrive...

The problem at the moment is if I replaced everything that I suspected on the machine, I would have to but a new helicopter, because of the value of these birds the whole thing makes me nervous

KEVIN
Trex 500ESP | Trex 600NSP | Trex 700 Gasser | MA Spectra G

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