adjusting needle
#1
Thread Starter
Member
Joined: May 2009
Posts: 86
Likes: 0
Received 0 Likes
on
0 Posts
From: Fred, CANADA
I<span class="Apple-style-span" style="color: rgb(0, 100, 0); font-family: Verdana; ">s there such a thing for rc planes that connects to the needle and you can adjust that way.. so it does not go with the risk of hitting your fingers.... I ask because the needle seems to be close to the prop.. very very close haha</span>
#2
Senior Member
My Feedback: (2)
Joined: May 2004
Posts: 3,354
Likes: 0
Received 0 Likes
on
0 Posts
From: Emmaus,
PA
Many engines have a remote needle valve that is attached to the backplate of the engine. Others have the needle valve angled back from the prop (see photos below).
#3

My Feedback: (1)
Remote needle valves like on some OS engines, or angled needle valves that move it further back than the standard setup. I've had some airplanes with the needle valve inside the cowl, so I had to kill the engine to change the setting. Since you may only change the needle one or twice on any particular day, this worked OK once the initial setting was found.
#5
Senior Member
My Feedback: (18)
Joined: Dec 2007
Posts: 2,505
Likes: 0
Received 0 Likes
on
0 Posts
From: Oklahoma City,
OK
You can use one of these http://www3.towerhobbies.com/cgi-bin...?&I=LXCR79&P=7 if your needle valve has the hole down the center of it.
#6

Joined: Jun 2007
Posts: 536
Likes: 0
Received 0 Likes
on
0 Posts
From: Grand Blanc,
MI
This was my solution to keeping my fingers out of the propeller. Icut the head off of a socket head screw and attached it the needle valve with JBweld. I can then use the correct size ball-end driver (I think it's 5/64) and hold it back at a pretty good angle away from the prop. Don't use a T-handle type driver, the extra leverage makes it very easy to over tighten the needle, which will ruin it.
#7

My Feedback: (8)
If they don't make a remote needle adapter for your engine, you have 2 options, cruise OS needle valve assemblies in tower, find the same type setup but remote that can be adapted to your engine. Or simpler yet, just tune your engine one or two clicks at a time, shutting it down between adjusting.
#8
ORIGINAL: frenchdoor
.. so it does not go with the risk of hitting your fingers.... I ask because the needle seems to be close to the prop.. very very close haha
.. so it does not go with the risk of hitting your fingers.... I ask because the needle seems to be close to the prop.. very very close haha
Frenchdoor:
At the beginning, I was very intimidated by the propeller rotating next to the valve.
My instructor taught me how to do it safely, always from behind the propeller, standing on the left side of the fuselage, with my left hand, while holding the model in place with my right hand.
Since then, I had no problem adjusting the valve next to the spinning knife, ........which I never disrespect.
The only real risk is to become overconfident and careless while doing this everyday action.
All very good advices above!
#9
Senior Member
My Feedback: (13)
Joined: Jul 2005
Posts: 2,322
Likes: 0
Received 0 Likes
on
0 Posts
From: Nutley,
NJ
You can also take a piece of pushrod....slide it into the end of the needle and tighten in place with the allen screw thats in there. Bend the end at 90 degrees...and should make life a little easier.



