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06-02-2004 04:57 AM  13 years agoPost 1
ninob660

rrNovice

Layton UT.

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I am having trouble with my hex starter. I dont know if the engine has too much compression or what, but when I try to start it I can hear the engine turn a couple of times and then the hex justs spins around the starter shaft. I have already notched the shaft with a dremel tool, I have lock tite the allen screw in place and it still does it.
I have read past post about hex and flex starters with mixed opinions. I need a little help please

oh sorry, by the way I have a fury expert with an os 61

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06-02-2004 05:04 AM  13 years agoPost 2
2fast4-u

rrApprentice

North Cobalt, Ontario .. Canada

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hi

try removing the glow plug and make sure that the engine is not flooded. I use 6mm hex start on all my helis with no probs. If it still strips then maybe you have internal engine problems

Ron

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06-02-2004 07:39 AM  13 years agoPost 3
SkyfoxSXer

rrApprentice

Gainseville,VA

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Put some Red Loctite on the shaft before you attach the Hex adapter. Let it dry then torque down the set screws nice and tight. Use blue Loctite on the set screws.

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06-02-2004 12:49 PM  13 years agoPost 4
ninob660

rrNovice

Layton UT.

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2fast4-u

I have done that a couple of times. then crank it with the glow plug out, put it back in and then it will start. after I am done using a full tank I will let it cool down and when I try again to start it the hex will just spin again.

SkyfoxSXer

I will try what you have suggested

thanks

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06-05-2004 04:41 AM  13 years agoPost 5
CobraJock24

rrApprentice

Northern California

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My Darn Fuel Will Not Compress!

Ok... bad joke!

One of my X-cells has a type of muffler (a muscle pipe) where the fuel is unable to just pass thru the engine and into the exhaust header/muffler BEFORE starting. After the engine starts, the force of the exhaust forces this fuel out.

To get around this, I orient the model so that the muffler is on the opposite side of the model that I am on. The side I am on has the needle adjustment valve, and also my fuel shutoff, for immediate access.

I then hold the aircraft slightly tilted away from me on its right skid, with my left hand on the main rotorhead, which allows the first bit of fuel to move from the engine cylinder into the exhaust manifold, and then into the muffler. In my right hand I hold the starter. The engine ALWAYS starts immediately if I do it this way.

If I do not allow a path for that fuel to make its way into the exhaust prior to starting, it locks up because it cannot compress the fuel, and then I spin the hex .... within a fraction of a second of locking up.

The muscle pipe is on about a 10 degree upward slope from the engine.... fuel does not "flow uphill" by itself!

Maybe this will help you also.

Cheers,
Grover

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06-25-2004 03:57 AM  13 years agoPost 6
RHCSKI

rrNovice

Newark, DE

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SkyfoxSXer


Did you also notch the starter shaft

Ron

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06-25-2004 10:01 PM  13 years agoPost 7
Buzzin Brian

rrProfessor

College Station, Texas

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I have the same set up with the muscle pipe 2, but mine is put on the same way as the instructions tell you to put it on (angled up), and I have never hydrolocked any of my helis. And I have that settup on 4 helis. So something else is a miss if you are having that much trouble starting the heli. Also as for the hex, I tend to use hex addaptors that have two set screws. I grind a pretty good flat on the shaft in one spot and attatch that set screw as tight as I can without stripping the set screw. Then I tighten the other set screw about as tight. I have yet to have one come loose. And I do not red loktite mine on either. I have seen them come loose on other helis, but almost all of them were on helis that only used one set screw on the hex. Does your have one or two set screws? And does the set screw have a cup point, or a flat point? I have found that flat works best for me.

Build it, fly it, crash it. Repeat as often as needed.

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