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HomeAircraftHelicopterHelicopter Main Discussion › Which nitro heli has the easiest engine to remove?
09-01-2013 10:07 PM  5 years agoPost 1
McKrackin

rrProfessor

Lucasville,Ohio

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I remember talking about this the other day.

Some helis are a beeotch to get the engine out and some are remarkably easy.

My Avant is definitely among the easy ones...literally five minutes without any rush...faster if I'm in a hurry....Five minutes today.lol...

Two bolts on each side in the motor mounts.
Two bolts in the exhaust.
A few screws in the fan shroud.
Two screws in the back plate sensor.
Pull the fuel lines and unclip the glow warmer.

How hard does your heli fight to hold onto it's engine?

I literally never use the word literally right.

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09-01-2013 11:24 PM  5 years agoPost 2
johnbs8

rrKey Veteran

roseville michigan

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Thunder tigers x50 has about 10 bolts and it drops out.

TT X50 Nitro
Warp 360
Logo 550sx
TeaM KicKnWinG

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09-01-2013 11:28 PM  5 years agoPost 3
McKrackin

rrProfessor

Lucasville,Ohio

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Do you have to remove the skids or bottom plate on the TT?

I literally never use the word literally right.

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09-01-2013 11:36 PM  5 years agoPost 4
Jeff polisena

rrElite Veteran

westpalmbeachflorida usa

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Synergy N9 ,Rave ENV come to mind

I stole it ,flew it and gave it back ;)

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09-01-2013 11:37 PM  5 years agoPost 5
jschenck

rrProfessor

La Vista, NE.

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Original Raptor 50 is the easiest I've messed with. 4 bolts to the engine mount to frame and it drops out. Might have to remove the exhaust if it's in the way of those bolts, which it usually is. No fan shroud to worry about, built into the frame.

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09-01-2013 11:41 PM  5 years agoPost 6
McKrackin

rrProfessor

Lucasville,Ohio

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Original Raptor 50 is the easiest I've messed with. 4 bolts to the engine mount to frame and it drops out. Might have to remove the exhaust if it's in the way of those bolts, which it usually is. No fan shroud to worry about, built into the frame.
Is that with the skids and bottom plate still on the heli?
I don't see how that can be done with the shroud still there.The engine would have to drop a long way to get clear of it.

I literally never use the word literally right.

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09-01-2013 11:51 PM  5 years agoPost 7
sonnyhad

rrProfessor

Holland,Mi

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Synergy N5c isn't too bad either! fan shroud and 4 bolts on one side 2 on the other side. bottom and skids stay on. Although i alway take the pipe off, I think you could leave it on.

Bald Pilots usually wear hats!

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09-01-2013 11:54 PM  5 years agoPost 8
johnbs8

rrKey Veteran

roseville michigan

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Yes with the x50 its skidz and bottom plate. 6 bolts for skidz/plate and 4 bolts for engine.

TT X50 Nitro
Warp 360
Logo 550sx
TeaM KicKnWinG

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09-01-2013 11:56 PM  5 years agoPost 9
johnbs8

rrKey Veteran

roseville michigan

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The bolt on the pipe side for the engine mount is tough to get too with standard driver without removing the muffler. But with the appropriate allen wrench it easily comes off without removing the pipe

TT X50 Nitro
Warp 360
Logo 550sx
TeaM KicKnWinG

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09-02-2013 12:13 AM  5 years agoPost 10
unclejane

rrElite Veteran

santa fe, NM, USA

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The Whip is fairly easy. About the same amount of work as yours, but does have a bottom plate. Way way easier than the trex nitro though, and you almost had to break things to get it out of there.

LS

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09-02-2013 12:40 AM  5 years agoPost 11
777ER

rrApprentice

Westchester county, NY, USA

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The Whip is fairly easy. About the same amount of work as yours, but does have a bottom plate. Way way easier than the trex nitro though, and you almost had to break things to get it out of there.
LS
Easier IMHO....remove 4 hex screws holding cooling fan shroud in place, remove 4 bolts holding bottom plate in (with tuff skids set) disconnect throttle ball link, disconnect fuel line, disconnect crankcase pressure line, remove 6 screws to engine mount from the sides (L-shaped allen wrench needed for muffler side if desired to keep it on still. Pulll heli off and engine remains on bottom plate with muffler attached to it still.
To remove engine from bottom plate, remove 2 screws underside and engine is off without removing the exhaust.

-Chris

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09-02-2013 12:43 AM  5 years agoPost 12
McKrackin

rrProfessor

Lucasville,Ohio

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Way way easier than the trex nitro though, and you almost had to break things to get it out of there.
The Trex 700 is the only other 90 I ever owned so that is the basis for my comparison.

With that heli...if I pulled the engine out for any reason,I replaced and rebuilt everything that required the engine coming out...whether it needed it or not.
Anything I could possibly do to delay the next engine removal.lol....

I literally never use the word literally right.

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09-02-2013 12:52 AM  5 years agoPost 13
unclejane

rrElite Veteran

santa fe, NM, USA

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Exactly.. There was always carbon dust from having to rip bolts out, and it was always hard to get the clutch free of the start shaft without something bottoming out. But 777 just described the Whippy situation which is much better. I've already pulled the clutch bell and it comes right out too. You do have to pull the rotor head and main gear, but that's easy. After that, just 6 bolts.

So we're in the Good Old Days of nitro in that respect now with these designs. Lots better than the days of yore lol.

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09-02-2013 02:03 AM  5 years agoPost 14
Lee O'Dell

rrApprentice

Gibsonville, North Carolina

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Raptor G4
Out in 5 min or less, especially if you have a floating head Hatori exhaust

...keep flying it 'till the last part stops moving

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09-02-2013 02:24 AM  5 years agoPost 15
777ER

rrApprentice

Westchester county, NY, USA

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I've already pulled the clutch bell and it comes right out too. You do have to pull the rotor head and main gear, but that's easy. After that, just 6 bolts.
There's no need to pull the rotorhead and the main gear to get the clutch bell out....just loosen the set screws in hex start adapter and pull out the start shaft then pull the clutch bell down.

-Chris

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09-02-2013 02:33 AM  5 years agoPost 16
jschenck

rrProfessor

La Vista, NE.

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Is that with the skids and bottom plate still on the heli?
I don't see how that can be done with the shroud still there.The engine would have to drop a long way to get clear of it.
The original Raptor (not X series, but the plastic frame Raptors) don't have a separate shroud or base plate. 4 bolts and the engine drops out.

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09-02-2013 02:38 AM  5 years agoPost 17
Rotowerkz

rrApprentice

Windham, NH

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I think the Raptor 50 V2 did have carbon fiber base plate, but I never put it on my Raptor 30 that was upsized to the 50. It was part number PV0326.

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09-02-2013 03:03 AM  5 years agoPost 18
Einzelganger

rrKey Veteran

Campbell, Texas

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Raptors are easy. If you don't have the carbon base plate, they are even easier.

Side note, the Freya is not easy.

Wayne

I love the smell of nitro in the morning.
RIP Roman

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09-02-2013 03:14 AM  5 years agoPost 19
unclejane

rrElite Veteran

santa fe, NM, USA

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There's no need to pull the rotorhead and the main gear to get the clutch bell out....just loosen the set screws in hex start adapter and pull out the start shaft then pull the clutch bell down.
You can't do that with the engine still in it, tho. This was just to take it out the top so I could do the endplay adjustment with a circlip. So the top bearing block had to come out along with anyway.

But hey just goes to show how it's easy to take apart and service, all kinds of ways to skin that cat...

LS

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09-02-2013 10:19 PM  5 years agoPost 20
jbiter

rrKey Veteran

Sebring, FL

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It is hard to beat the old Robbe Futura SE for ease of engine removal. The Avant series is also very easy which was one of the reasons that I have two of them.

Jeff

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HomeAircraftHelicopterHelicopter Main Discussion › Which nitro heli has the easiest engine to remove?
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