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Esprit Model . Thunder Power RC . Mikado Modellhubschrauber

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Engines Plugs Mufflers Fuel > OS 32SXH, 30% and problems....
 
 
helinutforever
Heliman
Location: Delaware, Ohio

Im about to give up on this motor of mine.. I am by no means a motor guy, and never had problems before (that i was not able to resolve without to much trouble) but im chasing needles here...

Ok.. I have a raptor 30 i purchased used. It had a TT36Pro with a weston tuned pipe (one peace).. It ran great till the main bearings went bad and started leaking.. I still had my first raptor (never crashed) which had an OS32sxh on it. I used this machine to learn to hover. I ran Wildcat 15%.

I put the OS32sxh and the weston pipe in my daily flyer and richened up the needles at few clicks.. I was running 30% wildcat in the tt36 and wanted to stick with 30%.. The os32 has not been ran for about 6-8 months or so.

The OS really seemed to like the wild cat.. I barely had to touch the needles after initial adjustments to get it to run somewhat decent.. I ran what I had left of the wildcat 30 % through it (about 3 tanks or so)..

Yesterday at field i had all sorts of troubles with the thing. My LHS had 1 gallon of Cool Power 30 (I was running wildcat) and didnt think it made a difference.. The first tank through and it over heated. I richened up the high need.. Had it sloppy rich and it was fine. The low end needle was still way to rich.. Way to much smoke on opening up the throttle and idle was poor to say the least..

Messed with the engine all day and not much luck.

Today i yanked the engine and reset the low end needle per manual, and reset the high end to 1 1/2 turns out.

Low end with these settings was really rich, high end was lean.. It over heated again.. richened up high end 3 clicks.. another hover.. overheated at end of tank (i have header tank).. Richened up more on high end.. Low end is still extremely rich.. I turned it in about 1 turn in 30 degree increments and it still very rich. I stopped there because i was not certain how many turns in i can go with the low end..

I also have alot of tail twicthing going on in hover (ff there is no twitching).. Leaning it helps, but then it overheats.

Not really sure what to try from here.. The motor has about 2-3 gallons of Wildcat 15 through it..

Just not sure what to do with it now.. It ran good on the wildcat.. but not on coolpower..

Perhaps I just need to let it run sloppy rich several tanks then lean it out?? (break it in again?).

Any suggestions or thoughts?
04-08-2002 Over year old.
HOMEPAGE  
 
 
driftrider
Veteran
Location: Cedar Rapids, IA. (In my own little world)

I've heard it said that when switching from one brand of fuel to another it can cause the engine to need a second break-in period. The Wildcat fuel has 18% Klotz synthetic oil that has a higher viscosity than the Coolpower, which runs 23 or 24 (can't remember the exact number) of a thinner oil (don't know what brand, Morgan doesn't say). The overheating might be because the lighter oil in the Coolpower doesn't absorb as much heat as the Wildcat.

Try doing a search for Wildcat fuel or switching fuel to get more info. I know this topic has been discussed (ad nauseum) before.

Good luck,

Mike
04-08-2002 Over year old.
 
 
MisterOught
Senior Heliman
Location: E'prise Al

i had switch to 30 after about 2 g. of 15 . then i was running way to rich and didnt know it . now (was) running 1 and a couple of clicks and ran smooth. had a oh-shi-a-dent and the heli was lock out of radio and laying on the fuel tank side so i could pinch the line and seized and bent the rod.

"a little search goes along way" and "copy and paste" works just as well.
04-08-2002 Over year old.
 
 
rickc
Elite Veteran
Location: Creve Coeur IL. (Peoria Area)

Take the weston pipe off until you get the engine dialed in, replace it with your stock muffler or buy one. I use a weston but it makes the motor fussy unless you have it tuned on the bottom just right. Great boost in performance with the weston, I would not use anything else on my .32. But if your not into tuning glow engines it will fight you. Run a stock exhaust and enjoy the ease of tuning and then later down the road when you feel you need that extra punch of power go back to the weston.

Rick
04-08-2002 Over year old.
HOMEPAGE  
 
 
helinutforever
Heliman
Location: Delaware, Ohio

The Pipe....

I considered taking the weston off and using stock pipe.. but geez i would be fiddling with the needles when i got the weston back on anyway.. so...

it ran great on the tt36..

anyways, thanks a bunch!
04-08-2002 Over year old.
HOMEPAGE  
 
 
helinutforever
Heliman
Location: Delaware, Ohio

Ok, another question.....

Im darned determined to get this thing to run right....

But i just read in another thread about there being a 15% and 30% nitro weston pipe.. If this is the case perhaps this is where my problem lies. How do you tell the difference between the two pipes? (this one purchase from heliproz and they made no statement of it being a 15 or 30% nitro version)..

I have my normal mode rpm at about 1550-1600, low needle is very rich and high needle is about 1 1/5 or slightly less turned out.... Tons of smoke and seems to be plenty of power on climbouts.. Motor temp is around 200 after a tank of fuel has been ran through it.

My idleup 1 setting is approx 18-1850.. While in idleup1 the rpm is very inconsistant.. Speeding up/slowing down.. Climbouts in idleup are still good but transition into a hover while into idleup1 is when the motor seems to get fussy..

Is this too rich or to lean? It does not appear to be overheating and does have tons of smoke.. on climbouts i get a burst of even more smoke..

Thanks
04-12-2002 Over year old.
HOMEPAGE  
 
 
scott3
Senior Heliman
Location: Pensacola Florida

I'm no engine expert (hehehe). One thing to keep in mind with changing fuels is the cool power is going to make a lot more smoke than you were used to seeing with the wildcat. I would start by setting the low needle back to factory setting and turning the high needle 1 1/2 turns from fully closed.
04-12-2002 Over year old.
 
 
rickc
Elite Veteran
Location: Creve Coeur IL. (Peoria Area)

I run a 15% Weston with 30% fuel on my .32. I see no lack in power. It will pull 10 degrees without grunting.

Rick
04-12-2002 Over year old.
HOMEPAGE  
 
 
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GrandRC . CanoMod . Futaba-RC

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Engines Plugs Mufflers Fuel > OS 32SXH, 30% and problems....
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