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HomeAircraftHelicopterAlignT-REX 700N › Trex 700 starting problems
01-13-2009 11:56 AM  9 years agoPost 1
frickey295

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Avenel NJ USA

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Guys I now have 12 flights on my 700 and now when I go to start her the starter turns the engine for maybe 2 revolutions then seems to spin freely like the clutch bearings are not gripping.Has anyone had this problem before ??????????? . I had replaced the clutch last night and it seems to be fine again . I am certainly hoping that maybe I just got a boner clutch in the kit.

Frank
Goblin 380
Trex 450 Dominator
Goblin 500
DJI Spark
AMA 844125

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01-13-2009 01:07 PM  9 years agoPost 2
Ladymagic

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South Korea

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From what you say it doesn't sound like a clutch problem. I would check your starter's one-way if you are using one. If the problem is on your heli I'd check your starter coupler and make sure the set screws are tight. Are you still using the original starter shaft from the kit or did you replace it when you replaced the clutch?

I've not had that issue yet. I've flown over 6 gallons through mine. It could just be a freak thing.

Mellisa

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01-13-2009 01:20 PM  9 years agoPost 3
Jonty

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Wellywood

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I would put money on it it is the start coupling. I had the same problem. The grubb screws are not fantastic on the start shaft and also the small insets on the start saft are a bit shallow. Replace the grubb screws and give the shaft a bit of a dremel and you should be fine.

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01-13-2009 01:35 PM  9 years agoPost 4
3dricky

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blackpool

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i had a problem like this before with another helicopter

why dont you try tightening the fan because it sounds to me like its catching and then the fan is then just spinning off loose

just a suggestion

Graupner Turbo Raven

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01-13-2009 01:58 PM  9 years agoPost 5
Jamin_00

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Essex UK

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I have this happen to me a couple of times but if i push down on the starter its ok
?????

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01-13-2009 03:55 PM  9 years agoPost 6
darren f

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chessington surrey england

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Hi it is the one way bearing in the clutch,had it with mine and a friends.

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01-13-2009 04:07 PM  9 years agoPost 7
Jamin_00

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Essex UK

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I take it,it is just a case of replacing it?

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01-13-2009 04:47 PM  9 years agoPost 8
HeliPhil

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Brentwood, Essex, UK

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I had this myself at the weekend, I also think it is the one way in the clutch slipping - I put it down to the sub zero temps we were flying in....... I expect it to be OK when it warms up.

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01-13-2009 05:07 PM  9 years agoPost 9
darren f

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chessington surrey england

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Mine has been slipping since i got it,but it always bites and starts,i will change it eventually.

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01-13-2009 05:15 PM  9 years agoPost 10
frickey295

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Avenel NJ USA

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I got 5 flights in this morning with no slipping at all.It started every time , I guess the one way in the clutch decided to go.

Thanks for all the replies everyone

Frank
Goblin 380
Trex 450 Dominator
Goblin 500
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01-13-2009 05:32 PM  9 years agoPost 11
LONEWOLF2440

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MYRTLE BEACH S.C

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If your using a 18 volt starter with a oneway it will do it

MIKADO LOGO 600 TREX 550

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01-13-2009 07:05 PM  9 years agoPost 12
Kelly Fairbanks

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Twin Falls Idaho

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Mine has done this since day one. Sometimes takes a couple of times to get it to fire but always works!

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01-14-2009 07:56 AM  9 years agoPost 13
Ladymagic

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South Korea

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Frickey295,

Personally, I think its just a freak thing. Sometimes you get a good one sometimes you don't. However so, I've noticed a few more threads popping up in the last few days concerning this problem. I will watch for problems with mine now. But, until your post yesterday, it never crossed my mind that this was such a wide spread problem or even a problem at all. I would like it if you would track the weather and flight conditions for a while and see if it happens again with your new clutch bearing. Please let us know if it does.

Temperature seems to be the most lidigating factor so far. One gentleman is so upset that he has sworn away from Align all together. I've had similar issues with others helis in the past. Usually, when this happens I find it's best to replace the bearing and the associated shaft at the same time. That always solves the problem as any uneven or unusual ware from one part will not be transposed to the new part. When the one way starts to go, you can usaually clean the rollers and the shaft with alcohol and it will bite again. This is only temperary and replacement usually follows shortly afterwards. I've never had a one way go prematurely though. Thanks for the heads up though

Mellisa

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01-14-2009 12:24 PM  9 years agoPost 14
frickey295

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Avenel NJ USA

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Hey melissa

I forgot to mention in my post Yes, I did replace the shaft since it was apart . I found no indications of any slipping or glazed look to the metal. Here is my experience with other helis

Raptor 30 never a problem
Raptor 50 never a problem
Evo 50 never a problem (gotta use a quick spindle)
Vibe 50 (now here is a heli !!!!!!!!!!!!)
Trex 600 nitro sport swash sucks, main shaft play in bearing blocks
Trex 600 nitro pro same as above with sport
Trex 700 nitro Swash sucks , paddles are drilled cockeyed and now the clutch issue.

I think we are developing a pattern here

nonetheless the 700 is a rockin machine !!!!!!!!

Frank
Goblin 380
Trex 450 Dominator
Goblin 500
DJI Spark
AMA 844125

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01-18-2009 04:28 PM  9 years agoPost 15
Ladymagic

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South Korea

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Frickey295,

I see what you mean. The funny thing is I've consistantly had those problems with my JR50 heli. I didn't have that issue with my Evo50, but it did have an annoying auto bearing problem. If you need to auto that thing you'd better do fast..because not matter what you do or how new your bearing is, you will bleed off headspeed in seconds. I actually crashed my Evo due to that very fact. I bought new bearings and even upraded ones...none of which fixed the problem.

Since I've been flying Align, I've actually been able to fly more and fiddle less. I can honestly say that the only issue I've had on a very long list of gripes and complaints from people on runryder about the 600 and 700 is the swashplate play..easy fix.

Align is by no means perfect, but you can't argue that their helis aren't among the best on the market. Parts are cheap and readily avialable. And most of all they do fly as advertised right out of the box.

Mellisa

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