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HelicopterEngines Plugs Mufflers Fuel › Cline Regulator/C-Spec
09-03-2003 04:11 AM  14 years agoPost 21
rchaas

rrVeteran

Tulsa, OK

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That is the check valve that comes with the Cline regulator. It goes insde the fuel line. I filed it ("circular file") and used a YS check valve, works great.

Robbie

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09-03-2003 04:14 AM  14 years agoPost 22
Secret Squirrel

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New Zealander living in Melbourne, Australia

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I was just going to use the Perry check valve, that would be OK eh?

-------------
Simon Lockington

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09-03-2003 04:42 AM  14 years agoPost 23
Alan Szabo Jr

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Las Vegas, Nevada

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check valve

the black one cline gives you is flawless. Dont chuck it. insert it in the fuel line and forget it. Never clogs up.

Alan Szabo Jr.

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09-03-2003 05:01 AM  14 years agoPost 24
RobStump

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Lake Saint Louis, Missouri

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Check Valve

Secret S,
Just insert the black check valve into medium size fuel tubing (not the large inner diameter or the small) approximately 1.25 -1.50 inches from the end of the line that attaches to the backplate pressure nipple. Insert pointed side away from the backplate and the collett side to the backplate. Just use something blunt like a ball driver to gently push it down the line and try not to install the fuel line where it will severely bend the tubing at the point where the valve rests in the line. This can in some cases cause the valve to malfunction. You will also need to insert a "T" fitting on the return line to the main tank and install a bleed line and plug to bleed off the built up pressure after a run. Enjoy!

~~~~~
RS

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09-03-2003 05:05 AM  14 years agoPost 25
Secret Squirrel

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New Zealander living in Melbourne, Australia

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Great, but I could get away without using a return line eh?

Si

-------------
Simon Lockington

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09-03-2003 05:15 AM  14 years agoPost 26
RobStump

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Lake Saint Louis, Missouri

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Huh??

You lost me there Si. I'm talking about the return line from the backplate to the main tank which is where you get the crank case pressure to the regulator. The muffler return line is not a player anymore with this set up.

~~~~~
RS

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09-03-2003 05:19 AM  14 years agoPost 27
Secret Squirrel

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New Zealander living in Melbourne, Australia

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Sorry, miscommunication there. I've been running the Perry Pump which has a return line back to the tank for excess fuel.

You're saying I should put a T connector in the line between teh crankcase and the main tank aren't you?

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Simon Lockington

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09-03-2003 05:24 AM  14 years agoPost 28
RobStump

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Lake Saint Louis, Missouri

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AFFIRM

You got it. That's the only difference between a stock set up and using the Cline. Instead of the psi coming from the muffler tap it comes from the backplate. That and the addition of the "T" fitting to accomodate the bleed off line. Take Care!

~~~~~
RS

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09-03-2003 05:32 AM  14 years agoPost 29
Secret Squirrel

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New Zealander living in Melbourne, Australia

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Which could also serve as the 'fueling' line as long as it was always correclty sealed given the presence of the check valve, cool.

Thanks for that!

Si

-------------
Simon Lockington

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09-03-2003 01:07 PM  14 years agoPost 30
Mujenpwr

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Mickleton, NJ

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I am using a YS checkvalve on mine. Is it better to use the supplied black one?

Thanks

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09-03-2003 06:40 PM  14 years agoPost 31
irq

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San Diego, CA

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James Oneal of OMI told me that a YS check valve is okay to use, but if you are going to use it you should remove the spring from inside. He said this is done because the Cline carb setup is designed to use pressure at idle. He did say the check valve that comes with the Cline carb is better, and I agree. It seems much more reliable.

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09-03-2003 07:12 PM  14 years agoPost 32
irq

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San Diego, CA

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That's not actually true, DavidH. Take the spring out, but leave the plastic part in. Blow in one end, air goes through. Blow in the other end, it does not. You know James Oneal, ask him. All the spring does is prevent the check valve from opening until there is enough pressure. The spring has nothing to do with letting pressure flow in only one direction.

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09-03-2003 07:23 PM  14 years agoPost 33
irq

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San Diego, CA

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I'm not surprised it wont work on a YS system, being that YS designed their check valves to work with their engines. That's probably why I wasn't suggesting that anyone use it on a YS engine

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09-03-2003 07:31 PM  14 years agoPost 34
irq

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San Diego, CA

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I have done this actually, when I misplaced my stock Cline carb check valve, and it worked great. I am not an engine or carb designer; any speculation I give on this idea would be just that, speculation. Why don't you ask James? He's the guy who told me to do it.

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09-03-2003 07:52 PM  14 years agoPost 35
irq

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San Diego, CA

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One thing I forgot to specifically mention but is certainly suggested by my previous post is that I had a very nice amount of pressure left in the tank at the end of the flight using the YS springless checkvalve, indistinguishable from the stock check valve.

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09-03-2003 08:02 PM  14 years agoPost 36
a_korandr

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Chicago, IL

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are these two systmes (ys and kline) are completely different ? i know that ys delivers the fuel in a metred way and only when there is an appropriate engine cycle. is kline meant to do the same and opens the 'line' when there is a vacuum ?

i have installed the whole thing on my furyx, but have not flown it yet.

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09-03-2003 08:05 PM  14 years agoPost 37
a_korandr

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Chicago, IL

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irq,
by the way one of the good things about kline is that you do have to release the preasure from the tank as it is in case with ys, when you finished your flight .

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09-04-2003 02:48 AM  14 years agoPost 38
Mujenpwr

rrApprentice

Mickleton, NJ

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Sorry guys I did not mean to start an issue. I was just gonna try the OMI ckvalve. I never used it I just started off with a YS ckvalve.

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09-04-2003 03:34 AM  14 years agoPost 39
Heli-Driver

rrElite Veteran

Arlington, TX

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Andrey,

The Cline regulator is metered just like the YS system. It is a proportional feed and allows more fuel only as needed.

The really sweet part is this thing totally cuts off the fuel to the carb if the motor isn't spinning over.

No longer will you worry about hydrolocking.... and that is a BIG bonus.

I used to pinch the fuel line before shutting down and keeping it clipped until start time and still struggled wuth hydrolocking. With the Cline I don't even bother with a fuel cut off, it works that good.



Raymond

Predator Gasser SE/231 X 2
Century Helicopters

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09-22-2003 06:58 PM  14 years agoPost 40
a_korandr

rrVeteran

Chicago, IL

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Raymond,
i had my first 3 flight yesterday on vipered c-spec with cline & gv-1.

i obviously running it on a reach side, but one issue i could not overcome and wondering if you ever had it. i believe i need to fiddle with the needles, though...

starts great, hovers great and smooth, on the high side hard to tell as i run it reach, so besides bogging it run great.

the issue : while descending and switching from idle1 to norm, the engine seem to be going lean, till i push the pitch a little up, and then the mid range kicks in with good smoke, but there is a point when either gv-1 is not managing it right, or/and my mid range/low needles are out of whack...

any thoughts ? i think i need to play a lot more with the mid/low needles to make it transition right.

has any had this experience on a similar setup ?

THANKS !

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HelicopterEngines Plugs Mufflers Fuel › Cline Regulator/C-Spec
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