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JR Heli Vibe - Airskipper - Sylphide - Venture > I got a vibe 50!!

Wingman77
Elite Veteran
Location: Pulaski TN US

finaly my first nitro this is great! I was just putting it together and I tightened the bolt that goes thru the head block and main shaft and the head block would wiggle back and forth on the main shaft. I tightened it a little more and the bolt stripped

what is wrong?

08-18-2008 03:59 PM

The_Widowmaker
Key Veteran
Location: Huntington Beach, CA

You didn't put the head on the wrong end of the shaft did you? The shaft has a larger diameter hole on one end, which is for the gear assembly. The end with the smaller diameter hole is for the head.

"I'm a Virgin.. I'm just not very good at it. "

08-18-2008 04:16 PM

HOMEPAGE

Wingman77
Elite Veteran
Location: Pulaski TN US

no it is on correctly.

08-18-2008 05:32 PM

The_Widowmaker
Key Veteran
Location: Huntington Beach, CA

Did the headblock fit around the shaft snug or does it wobble around. Im not quite sure what kind of play you are referring to but there should be none. I can see the headblock moving up and down maybe slightly if the screw is not tightened but only slightly if at all. If the headblock is wobbling around on the shaft sounds like you have the wrong shaft or wrong head.

Snap a pic of you can.

"I'm a Virgin.. I'm just not very good at it. "

08-18-2008 05:50 PM

HOMEPAGE

Wingman77
Elite Veteran
Location: Pulaski TN US

if you grab the grips and twist the head sidways you can very clearly see the two metal bars moving sidways in the washout base.

hopefully you understand it is hard to explain and a picture I dont think would help much.

08-18-2008 06:13 PM

RCHeliJim
Elite Veteran
Location: Orem, UT USA

Replace the locknut that JR includes for the Jesus bolt with a thicker locknut. My locknut stripped on mine - they are quite thin locknuts. They work great in the rest of the heli but on that bolt you want it tight enough to clamp the headblock and at least on mine that locknut gave way. Once I put a thicker locknut on that had a few more threads I was able to tighten the whole thing up and get rid of the play.

Go Fly, Have Fun!!
-Team Quick UK
-Team RCHeliMag

08-18-2008 09:22 PM

HOMEPAGE

kevlar11
Senior Heliman
Location: Edmonton

lock nut

same thing happend to me
change out the lock nut for one with more threads and you can tighten it down to stop the play in the head
KD

08-18-2008 09:44 PM

Pinecone
Key Veteran
Location: Maryalnd

A couple of people have reported head blocks that were loose, even with the Jesus bolt tight.

Might want to call JR/Horizon.

Terry
Blade CP
Trex 450 SE
QJ EP8v2 EX
Gaui Hurricane 550
Vibe 50

08-18-2008 11:06 PM

Wingman77
Elite Veteran
Location: Pulaski TN US

I looked at it and just as you said the bolt was not stripped just the nut, I will try a nut with more threads.

now this is my first nitro and I am using a hyper. I was wondering how many turns out you put the needle valve for break in and how many you put it out for normal use. from the manual that came with it I you put it 3 turns out for break in and 1.5 for normal use but I thought I would check with you guys. also any tips for this engine would be greatly appreciated.

08-20-2008 03:57 AM

Aerowizzard
Heliman
Location: Laval, Qc. Canada

For your Hyper, 1.5 turn to start with is enough unless it is very cold outside. Usually, mine is running fine at 1.25 turn and too rich at 1.5

Try this and you will always play between 1 and 1.5 because at 3 turns the fuel is gone run trough the muffler and you will have engine lock at startup.

Best luck

Josh

JR Vibe 50, OS 50 Hyper DX7 3xHitec 5625 GY401 with 9254. 2 X Hirobo SCeadu Evo, OS 50,.......

08-23-2008 04:19 AM

Wingman77
Elite Veteran
Location: Pulaski TN US

I understand it is not good for the enging to run to lean, not enough lubrication and such. so how do you tell if you have it to lean??

09-02-2008 02:25 PM

neonbjb
Heliman
Location: Goleta, CA - United States

Its too lean if:
1) Theres very little smoke
2) The engine gets very hot
3) The sound of the engine is higher in pitch (this is relative, but if you go rich then lean you will hear the difference).

09-03-2008 06:27 PM

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JR Heli Vibe - Airskipper - Sylphide - Venture > I got a vibe 50!!

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