mewsikman
01-27-2008, 05:57 PM
Hey guys,
Today the weather was perfect... Nill wind, bright blue skys and the sun was behind me :).....
Today was the first time that I have been able to push my heli and myself to the max since my upgrades....
The upgrades were :- Metal blade grips, Metal washout arms, Align 50 pipe ( WOW ) and frame stiffners...
My problem is the mixture is just all over the place now and I just can't understand whats going on.... I started flying today with the needle mixture out about 1 turn.... fired up ok, for some reason everytime I start it from cold it feels almost like a hot start I have to click the throt tab ( DX7 ) down at lease 3 - 4 clicks to stop it trying to turn to the main blades..... But once it has warmed up the idel is ummm how to put it nicely SH*T always up an down, iv have tryed new plugs they work for like 2 mins then back to normal.... ill come back to that in a min...
Go out flying with the needle set around 1 turn out from fully closed... Doing stall turns, invert circutes, loops, rolls and tic tocks.. I then crack out my new temp gun to check the temp on the back plate, was running around 95 F so I thought that I would richen it up abit because I am only using 16% with 18% lub.... Did the same style of flying brought her down hit throt hold an the rmp started to drop nicely but then did the tell tale sign of running lean with the jumping on the rmp.. richened it up 2 clicks at a time, repeated this over an over I have just ended up at 1.25 turns out, and for some odd reason when I hit throt hold it started to speed up the rotors almost like it was running lean then started to die back down….. I then checked the temp of the back plate it was at 100.7 F and the cooling fins were at 147 F…. You should have seen the oil all down the tail boom look like liquid sh*t all down it, was everwhere inside the canopy and I have never had this before… I know this is the joy of having nitro but it looked like the engine had just taken a whole packet of laxatives…
I have checked an made sure that my pipe is nice and tight, used both brass gaskets like it says to, I checked the plug to see if coil was distorted or grey…. Nope nice an shinny new, but the plug looked oily and so did the crown of the piston, don’t know if that’s normal???
Right back to the idle speed, I just don’t know how to descibe it…. When I set her on the ground and powered down the idle was fine for about 4 secs then dropped off like it was running to rich but I have no idea whats going on… I will try an do a video asap just so you guys can see….
Very sorry that it was soooooooooooo long but I tried to cover everything
Many thanks
Alex
Today the weather was perfect... Nill wind, bright blue skys and the sun was behind me :).....
Today was the first time that I have been able to push my heli and myself to the max since my upgrades....
The upgrades were :- Metal blade grips, Metal washout arms, Align 50 pipe ( WOW ) and frame stiffners...
My problem is the mixture is just all over the place now and I just can't understand whats going on.... I started flying today with the needle mixture out about 1 turn.... fired up ok, for some reason everytime I start it from cold it feels almost like a hot start I have to click the throt tab ( DX7 ) down at lease 3 - 4 clicks to stop it trying to turn to the main blades..... But once it has warmed up the idel is ummm how to put it nicely SH*T always up an down, iv have tryed new plugs they work for like 2 mins then back to normal.... ill come back to that in a min...
Go out flying with the needle set around 1 turn out from fully closed... Doing stall turns, invert circutes, loops, rolls and tic tocks.. I then crack out my new temp gun to check the temp on the back plate, was running around 95 F so I thought that I would richen it up abit because I am only using 16% with 18% lub.... Did the same style of flying brought her down hit throt hold an the rmp started to drop nicely but then did the tell tale sign of running lean with the jumping on the rmp.. richened it up 2 clicks at a time, repeated this over an over I have just ended up at 1.25 turns out, and for some odd reason when I hit throt hold it started to speed up the rotors almost like it was running lean then started to die back down….. I then checked the temp of the back plate it was at 100.7 F and the cooling fins were at 147 F…. You should have seen the oil all down the tail boom look like liquid sh*t all down it, was everwhere inside the canopy and I have never had this before… I know this is the joy of having nitro but it looked like the engine had just taken a whole packet of laxatives…
I have checked an made sure that my pipe is nice and tight, used both brass gaskets like it says to, I checked the plug to see if coil was distorted or grey…. Nope nice an shinny new, but the plug looked oily and so did the crown of the piston, don’t know if that’s normal???
Right back to the idle speed, I just don’t know how to descibe it…. When I set her on the ground and powered down the idle was fine for about 4 secs then dropped off like it was running to rich but I have no idea whats going on… I will try an do a video asap just so you guys can see….
Very sorry that it was soooooooooooo long but I tried to cover everything
Many thanks
Alex