DA 100 problem

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harv · 01-31-2009, 07:34 PM

hey guys, ive got a problem with my DA 100. motor runs fine and has great power. but lots of times when i go on a vertical upline and do a snap(with power) the motor deadsticks. its the old 100 on ks cans swining a biela 26x10 3 blade. ive checked the tank and there is fuel in the line and after i land i can fire it up again and it runs fine. what could be a possible problem.?

BOSSIER_ROB · 01-31-2009, 08:46 PM

Possibly a tad too lean. Try turning the h/s needle out 1/8 turn and see how it does.

Professor · 01-31-2009, 08:49 PM

One thing to check is all of your electrical connections on the ignition system. I had a loose plug connection on my ignition system and it would only deadstick on vertical upline snaps.... If you run the plane on the ground with the canopy off and pull on each of the wires and connections from the ignition system you may find a faulty connection. Of course it may also be related to the fuel system.

Major3d · 01-31-2009, 08:54 PM

Check that you tank clunk is not flush against the back of the tank. Needs about 1/4 clearance.

Rush7 · 01-31-2009, 11:08 PM

	Quote: Originally Posted by Professor
	One thing to check is all of your electrical connections on the ignition system. I had a loose plug connection on my ignition system and it would only deadstick on vertical upline snaps.... If you run the plane on the ground with the canopy off and pull on each of the wires and connections from the ignition system you may find a faulty connection. Of course it may also be related to the fuel system.

I have to agree with Professor on this one. From what you are saying about not losing fuel to the engine is sounds like the engine is losing fire.
If you are using the power pole connectors on your ignition I would cut them off and use a good solid connector like a deans.

If this isn't the problem then I would look at other electrical connections because it soulds like an electrical problem to me.

sweetpea · 01-31-2009, 11:19 PM

Could also be an ignition battery going bad.

I'd do the ground test looking at wires and connections and if that doesn't show anything I'd replace the ignition battery, climb high and try the snap again (expecting the dead stick).

STLAV8R · 01-31-2009, 11:24 PM

	Quote: Originally Posted by harv
	hey guys, ive got a problem with my DA 100. motor runs fine and has great power. but lots of times when i go on a vertical upline and do a snap(with power) the motor deadsticks. its the old 100 on ks cans swining a biela 26x10 3 blade. ive checked the tank and there is fuel in the line and after i land i can fire it up again and it runs fine. what could be a possible problem.?

Or . . . send it to DA and make sure that the engine is not the problem . . .

N726AC · 01-31-2009, 11:31 PM

26X10 three blade? On a 100 ? Really?

bgold · 02-01-2009, 12:34 AM

Harv, did you do anything with that hole in the carburetor plate to eliminate pressure differential

harv · 02-01-2009, 01:45 AM

bill-no i didnt touch the carb.

although i do agree with everyone who is aying that the elctrical could be an issue. im going to check all the plugs. and i mgiht change out that connector if it is the problem but it is strapped securely. and ill also pull out the tank and take a lok and see if the clunk line didnt slide back and butt up against the tank.

thanks for the responses guys.

harv · 02-01-2009, 01:46 AM

	Quote: Originally Posted by N726AC
	26X10 three blade? On a 100 ? Really?

yeah, it works great. its quiet. maybe a little load but it sure hauls as on a pau 540.

sweetpea · 02-01-2009, 01:52 AM

Harv......forgot to mention. Maybe a sparkplug is carboned up as well. I had a friend with a 46% Ulti. Every time he flew at one specific angle/heading and throttle setting his plane would go into lockout. We tried everything to fix the problem. After 2 months of this and that we changed the plugs and the problem was gone.

harv · 02-01-2009, 01:53 AM

sam, you may be right. ill give that a look also.

shogunmst · 02-01-2009, 09:07 AM

I had the exact same issues some time back, after a dozen or so deadsticks and alot of troubleshooting... we found that my vent line from the tank had a sharp bend not allowing the tank to vent..... changed out all my fuel lines and no issues since.... Good Luck

Shawn

**WOODisGOOD** · 02-01-2009, 10:56 AM

Doesnt sound like anything engine related to me. If you have tried everthing listed above and still cant figure it out send it in and we can take a look at it. Are there any optical kill switchs in the plane?

01-31-2009, 07:34 PM	#1
harv it wont go any lower Join Date: Feb 2006 Location: Canada Eh? Age: 19 Posts: 2,369	DA 100 problem hey guys, ive got a problem with my DA 100. motor runs fine and has great power. but lots of times when i go on a vertical upline and do a snap(with power) the motor deadsticks. its the old 100 on ks cans swining a biela 26x10 3 blade. ive checked the tank and there is fuel in the line and after i land i can fire it up again and it runs fine. what could be a possible problem.? __________________ Borderline IMAC Team Aztech Aero Smart-Fly

01-31-2009, 08:46 PM	#2
BOSSIER_ROB TEAM 3DHS Join Date: Mar 2007 Location: Bossier City, LA Age: 36 Posts: 4,860	Re: DA 100 problem Possibly a tad too lean. Try turning the h/s needle out 1/8 turn and see how it does. __________________

01-31-2009, 08:49 PM	#3
Professor Bad-ass Super Contributer! Join Date: Nov 2006 Location: Ohio Posts: 315	Re: DA 100 problem One thing to check is all of your electrical connections on the ignition system. I had a loose plug connection on my ignition system and it would only deadstick on vertical upline snaps.... If you run the plane on the ground with the canopy off and pull on each of the wires and connections from the ignition system you may find a faulty connection. Of course it may also be related to the fuel system.

01-31-2009, 08:54 PM	#4
Major3d Super Contributer Join Date: Aug 2006 Location: Blue Springs, Missouri Posts: 115	Re: DA 100 problem Check that you tank clunk is not flush against the back of the tank. Needs about 1/4 clearance.

01-31-2009, 11:19 PM	#6
sweetpea If you can't HUCK it BLING IT! Join Date: Jan 2006 Location: Just Moved.......Hampton VA Age: 37 Posts: 9,269 Awards Showcase Total Awards: 2	Re: DA 100 problem Could also be an ignition battery going bad. I'd do the ground test looking at wires and connections and if that doesn't show anything I'd replace the ignition battery, climb high and try the snap again (expecting the dead stick). __________________ Offical Member of Team Caribou Lou "Some people spend an entire lifetime wondering if they made a difference in the world. But the U.S. ARMED FORCES don't have that problem." ...Ronald Reagan

01-31-2009, 11:31 PM	#8
N726AC 100LL User Join Date: Sep 2006 Location: Ft Myers Florida Posts: 4,301	Re: DA 100 problem 26X10 three blade? On a 100 ? Really? __________________ TonyG@RedAeroRC.com

02-01-2009, 12:34 AM	#9
bgold Bad-ass Super Contributer! Join Date: Apr 2007 Location: United States, AZ, Sun City Posts: 1,201	Re: DA 100 problem Harv, did you do anything with that hole in the carburetor plate to eliminate pressure differential

02-01-2009, 01:45 AM	#10
harv it wont go any lower Join Date: Feb 2006 Location: Canada Eh? Age: 19 Posts: 2,369	Re: DA 100 problem bill-no i didnt touch the carb. although i do agree with everyone who is aying that the elctrical could be an issue. im going to check all the plugs. and i mgiht change out that connector if it is the problem but it is strapped securely. and ill also pull out the tank and take a lok and see if the clunk line didnt slide back and butt up against the tank. thanks for the responses guys. __________________ Borderline IMAC Team Aztech Aero Smart-Fly

02-01-2009, 01:52 AM	#12
sweetpea If you can't HUCK it BLING IT! Join Date: Jan 2006 Location: Just Moved.......Hampton VA Age: 37 Posts: 9,269 Awards Showcase Total Awards: 2	Re: DA 100 problem Harv......forgot to mention. Maybe a sparkplug is carboned up as well. I had a friend with a 46% Ulti. Every time he flew at one specific angle/heading and throttle setting his plane would go into lockout. We tried everything to fix the problem. After 2 months of this and that we changed the plugs and the problem was gone. __________________ Offical Member of Team Caribou Lou "Some people spend an entire lifetime wondering if they made a difference in the world. But the U.S. ARMED FORCES don't have that problem." ...Ronald Reagan

02-01-2009, 01:53 AM	#13
harv it wont go any lower Join Date: Feb 2006 Location: Canada Eh? Age: 19 Posts: 2,369	Re: DA 100 problem sam, you may be right. ill give that a look also. __________________ Borderline IMAC Team Aztech Aero Smart-Fly

02-01-2009, 09:07 AM	#14
shogunmst Bad-ass Super Contributer! Join Date: Jan 2006 Location: Crestview, FL Age: 38 Posts: 615	Re: DA 100 problem I had the exact same issues some time back, after a dozen or so deadsticks and alot of troubleshooting... we found that my vent line from the tank had a sharp bend not allowing the tank to vent..... changed out all my fuel lines and no issues since.... Good Luck Shawn

02-01-2009, 10:56 AM	#15
WOODisGOOD Lesebergs pit bitch Join Date: Jan 2006 Location: Tucson Age: 38 Posts: 2,257 Awards Showcase Total Awards: 1	Re: DA 100 problem Doesnt sound like anything engine related to me. If you have tried everthing listed above and still cant figure it out send it in and we can take a look at it. Are there any optical kill switchs in the plane? __________________ A J Russo www.daltonaviation.com

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