RunRyder RC
WATCH
 2 pages [ <<    <    ( 1 )     2     NEXT    >> ] 1452 views POST REPLY
Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › went lean when doing tic toc
01-14-2013 03:27 AM  7 years ago
Topic Vote0Post 1
joecass

rrVeteran

NJ

MyPosts All Forum Topic
went lean when doing tic toc
i have a OS 55 and when doing tic toc the heli went lean my question is what needle to i have to rich?

Tim Jones said on the101 Nitro tuning video that when doing tic toc your on the mid needle

Bert in his video on SmackTalk said that when doing tic toc you are on the high end needle.

so witch one is it?
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-14-2013 03:35 AM  7 years ago
TMoore

rrMaster

Cookeville, TN

MyPosts All Forum Topic
If you are running a gov or a limiter, it will depend on where the gov puts the throttle and when. I would try a little richer on the HS needle and see what happens to make sure the the problem tracks with that needle. If it doesn't, turn the HS needle back and try the Mid. You'll find it.

TM
Part 107.
The only ZERO flight hour certificate in the world.
It's like getting a driver's license without the driver's test.
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
01-14-2013 04:36 AM  7 years ago
BigMc70

rrApprentice

Abilene, Texas-USA

MyPosts All Forum Topic
Middle needle adjustment
I agree with Tim on this one. Tune the high end doing full pitch climb outs be sure to let it climb enough to clear out the middle fuel build up. When the high is pulling strong tune the middle buy climbing out and stopping in a hover. If the engine gurgles and has a large smoke change its rich. Then I like to do hard tic toc's and tune the middle to hold. you will always want to run a little richer around middle for Hard 3D because you are keeping it loaded more while never really getting in to the high range of the carb.
Raymond McFaul
Team Grand RC
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
01-14-2013 04:36 AM  7 years ago
joecass

rrVeteran

NJ

MyPosts All Forum Topic
thanks TM im using multigov pro im going to do that
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-14-2013 04:46 AM  7 years ago
James Allen

rrVeteran

South West, OH USA

MyPosts All Forum Topic
+1 to what Bigmc said

I would say technically you are on both needles during tic tocs, but mostly on the mid needle. When you come off of a hard collective hit, and go back past center you are unloading the disk. Kind of like doing a full collective punch out, and then returning to 0 pitch. At that point you are hard on the mid needle.

If the mid needle is set correctly the engine will recover very quickly. If it takes some time for the rpm to come back up you are most likely on the lean side. You can also be way rich. If you have tons of smoke...then you may be to rich.

When in doubt richen the mixture. You can try both, but try one at a time so you can hear what changes happen to the engine. Always make sure there is plenty of smoke.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-14-2013 10:22 AM  7 years ago
joecass

rrVeteran

NJ

MyPosts All Forum Topic
my high is set has good power on punch outs it seems that my mid needle is a little richer than my high needle. when i was doing tic toc i noticed that the smoke got thin also the power changed like it felt like the engine was revving higher or somthing and it felt like it was going to stall out. until i got of the pitch
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-14-2013 04:44 PM  7 years ago
VinceY

rrApprentice

Newnan GA

MyPosts All Forum Topic
Depends on how you do Tic-Tocs. If you are good at them and finesse them you are probably on the middle needle. I've seen guys digging in the sticks so deep that the motor never unloaded in transition and the high needle needed richening.Team Synergy/ Rail Blades
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
01-14-2013 04:50 PM  7 years ago
MartyH

rrProfessor

USA

MyPosts All Forum Topic
another for the mid-needle as long as the HS needle is clean under load.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-15-2013 02:05 AM  7 years ago
joecass

rrVeteran

NJ

MyPosts All Forum Topic
im going to turn my high out 2 turns. just because my high is leaner than my mid. thanks for the help so far
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-15-2013 05:20 PM  7 years ago
MartyH

rrProfessor

USA

MyPosts All Forum Topic
I see you are in NJ. Are you flying right now? I'm in Ohio and freezing my butt off.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-15-2013 05:43 PM  7 years ago
Swoop

rrElite Veteran

Newark, DE USA

MyPosts All Forum Topic
Also make sure your clunk isn't partially hanging up in your header or main tank. Also check clunkline for cracks that might only be above the fuel line during tictocs.Chris
X50, B320, Radix, Spartan
Titan,Kasama,MP5,Radix,JR770
Trex450SE,MavrikkG5,Phoenix35
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-16-2013 04:30 AM  7 years ago
joecass

rrVeteran

NJ

MyPosts All Forum Topic
i fly all winter long. bothe cluck lines are ok
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-16-2013 12:31 PM  7 years ago
KevinB

rrKey Veteran

Earth

MyPosts All Forum Topic
One other thing to check is that the clunk doesn't rest flush against the end of the main or header tank when the heli is held vertical.

I replaced my clunk lines once and left what I thought was a good space between the clunk and the end of the main tank. It was the black clunk line and as we all know, it swells a bit once exposed to nitro fuel. After it grew in length, if I held the heli vertical, the clunk would hang JUST above the end of the tank. I couldn't understand why it was fine in all aspects of flight except when I did tick tocks or long vertical climbs.
After messing with the needles for several sessions, I found the problem. In the vertical position the clunk was sucking onto the back of the tank and severely restricting the fuel flow. I cut 1/4" off the clunk line and all was well again.

KevinB
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-16-2013 07:06 PM  7 years ago
Mark C

rrKey Veteran

Houston, TX - USA

MyPosts All Forum Topic
+1 for Swoop and KevinB
I had the same issue. Continued to richen up every needle till it was about unflyable. Finally found that the clunk line was the issue. I realized that it wasn't tic-tocs when it went rich doing tail-down funnels (where the heli is in almost the same exact attitude)

Went electric and never had that problem again.

But really, what's it cost ya to just change out the clunk line?
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-16-2013 11:06 PM  7 years ago
joecass

rrVeteran

NJ

MyPosts All Forum Topic
i just replaced the clunk line not long ago.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-16-2013 11:45 PM  7 years ago
KevinB

rrKey Veteran

Earth

MyPosts All Forum Topic
I had just replaced mine shortly before I had my problem too....

Because I made the replacement line near the same length as the old one and didn't leave room between the end of the tank and the clunk for the swelling/lengthening of the new line.

KevinB
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-17-2013 12:47 AM  7 years ago
joecass

rrVeteran

NJ

MyPosts All Forum Topic
ok im going to pull the tank later when my kids go to sleep
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-17-2013 03:06 AM  7 years ago
joecass

rrVeteran

NJ

MyPosts All Forum Topic
the clunk line is ok
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-17-2013 04:58 AM  7 years ago
KevinB

rrKey Veteran

Earth

MyPosts All Forum Topic
By ok I'm going to assume you mean that both the main and header clunk lines have no splits and the clunks have at least a 1/4" clearance with the end of the tanks when the heli is held vertically.

Have you pressure checked your whole system ? ( with an empty tank, clamp off the muffler pressure line right at the muffler, and then pull the line off of the carb, blow into the tank as hard as you comfortably can, and clamp off the end of that line. Wait at least a minute, then release one of the clamps. If you don't hear the hiss of escaping pressure, you have a leak in the system. ) If you have a leak, you will have reduced pressure assisting the fuel feed. When the heli is nose up, the engine is located completely above the fuel tank and must draw the fuel the farthest against gravity. This is where it would show up lean if the fuel draw/pressure isn't sufficient.

To test this theory, try nose down tick tocks instead of tail down. If it still goes lean doing them nose down, then fuel pressure isn't your problem. If the problem disappears doing them nose down, I'd take another real close look at your entire fuel system.

KevinB
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-18-2013 12:07 AM  7 years ago
joecass

rrVeteran

NJ

MyPosts All Forum Topic
i don't have any leaks and im running the OS DRS system
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 2 pages [ <<    <    ( 1 )     2     NEXT    >> ] 1452 views POST REPLY
Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › went lean when doing tic toc
 Print TOPIC  Make Suggestion 

 8  Topic Subscribe

Friday, April 10 - 3:42 am - Copyright © 2000-2020 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online