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engine woes....
well I tried to fly today but the thunder tiger engine would not couperate. I could get in some time before the engine would cough and eventually quit in the air. so I thought i should fly really high that way when it dies I would have lots a altitude well no good on that, nasty weather and a low cealing kept me down.
the only thing the fellas out at the field could do to help it was recomend a 10x6 prop for the engine but it should not be doing this. I am going to get one of the black props in a 10x6 and if that engine doesn't quit being all screwy its going in to the trash. people have recomended a tower hobbies engine as next thing to the os for a 2 stroke and saito 4 strokes. I will propably get a tower hobbies .46 BB engine because there are 3 tower trainers with towers .46 bb engine on em and they are giveing the racers and sport pilots planes a run for there money. there was a 4* with a 1.20 4stroke (over proped) that was moveing pretty quick and they were running hotter than that. thanks all I just needed to put that out there. the thunder tiger has given me chit from the very begining and its had many a tank of gas through it and im tired of puting up with it. |
RE: engine woes....
tower engines are really hit and miss, i've had three of them, NONE of which have ever ran worth anything... i didn't have the typical leaking air problems, I made sure of that, but they still ran like they were sucking more air then fuel. (impossible to needle, horribly rich in the middle band, then dead lean at the top)
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RE: engine woes....
Well if you are going to throw it away let me know and I'll send you my address. :D
This sort of problem is usually a tuning issue, either you or some other well meaning person thought that they knew how to tune the engine and then really foulled it up. :eek: If you can I'd reset all the Carb settings and retune, if you are not adept at this, find someone that is. Other reasons include (but are not limited too) dirty carbs, holes in the fuel lines, poor back pressure, loose engine mounts, unballanced prop, foaming fuel, too little oil in the fuel, running the engine too lean and so on. [&o] Engine problems happen, a part of this hobby is learning how to deal with them, if you don't like that fact - then stay on the Flight Simulator and keep pressing reset. :eek: |
RE: engine woes....
What engine? What plug? What fuel?
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RE: engine woes....
Thunder Tigers are considered to be very reliable and good engines.
Some of the Tower Hobbies engines are a handful. I had three of them and they were perfect but that is not always the case with them. The Super Tiger 40 is cheap and a great engine. |
RE: engine woes....
I'd stay away from Tower Hobbies engines. At best, they're a copy of the OS, like most off brands are. If your TT is a Pro series, it should run well and give gobs of power. Unless it's been crashed or run really lean for a while, I believe it's worth salvaging. Let a good engine man look at it for you. If you just really need to change engines, I will recommend the Super Tigre. They are VERY reliable and user-friendly. For a few more bucks, you can get a Webra Speed. Talk about power...
Dr.1 PS If you're really gonna trash the TT, send it to me, I'll pay postage. |
RE: engine woes....
I have a TH .46 BB ABC and it's a wonderful engine. I've just recently ordered a second one for my second plane. I'm not sure why everyone is always bashing these engines. Every manufacturer has some engines that don't work like they should. Thunder Tiger may have had one that Sarges_heroes2003 got stuck with. It happens.
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RE: engine woes....
I second the TT Pro recommendations. These are excellent engines. Check your glow plug. Mine runs best on an OS A3 (likes the hot plug). Also better description of what you're doing with the plane when it sputters and dies. Is it idling, half-throttle, full-throttle, transitioning from idle-to-full, or full-to-idle, climbing, diving, looping, rolling, etc. These are key indicators to tell you where to start troubleshooting. My guess is that if it was running well before and starting giving you trouble, change the glow plug. If its happening at full throttle, you're either running way to rich or too lean, if its happening at idle, maybe your idle speed is set one click too low, and if its happening on transition, your low end needle needs adjusting. Also don't rule out fuel delivery problems (are you using a fuel filter? Is it plugged?).
Brad |
RE: engine woes....
TT engines have a spectacular reputation. Your problems stem from your inexperience at tuning -- not the engine -- get help at the field if you can.
Meanwhile, which TT engine is it -- a GP 42? A TT 40 Pro? a TT 46 Pro? -- we need to know in order to help you. Be specific in you descriptions -- what exactly is happening, & in what sequence? What have you done to try & correct this problem? Some serious advice -- absolutely stay away from the Tower 46. It is a cheap copy of an old Super Tigre & it it is a poor quality machine. Your TT engine is a vastly better piece of equipment & if you think that you have troubles now -- just wait & see what happens when you buy the Tower. |
RE: engine woes....
ORIGINAL: kiswa I have a TH .46 BB ABC and it's a wonderful engine. I've just recently ordered a second one for my second plane. I'm not sure why everyone is always bashing these engines. Every manufacturer has some engines that don't work like they should. Thunder Tiger may have had one that Sarges_heroes2003 got stuck with. It happens. |
RE: engine woes....
ORIGINAL: bkdavy I second the TT Pro recommendations. These are excellent engines. Check your glow plug. Mine runs best on an OS A3 (likes the hot plug). Also better description of what you're doing with the plane when it sputters and dies. Is it idling, half-throttle, full-throttle, transitioning from idle-to-full, or full-to-idle, climbing, diving, looping, rolling, etc. These are key indicators to tell you where to start troubleshooting. My guess is that if it was running well before and starting giving you trouble, change the glow plug. If its happening at full throttle, you're either running way to rich or too lean, if its happening at idle, maybe your idle speed is set one click too low, and if its happening on transition, your low end needle needs adjusting. Also don't rule out fuel delivery problems (are you using a fuel filter? Is it plugged?). Brad I am not useing a fuel filter (I had visited a couple flying fields and no one was useing them so I opted to not use one) and the tank was full. fuel tubeing is new as is every thing else. its not the plug we checked that. Any ways im makeing a stop at a hobbie shop this week to get a few new props and a nose cone thingy. if the engine does it again it will be up in the for sale forums. |
RE: engine woes....
You still didn't tell us what it is --- how can we help with no real information?
What fuel? What prop? Is it new, or old? Does it start properly? Does it transition properly? Does it idle? Does it blow fuel? Was it in a serious crash? Did you ever dissassemble it? How was the idle mixture set? How was the high speed mixture set? How is the tank pressurized? Have you checked for loose head bolts & back-plate bolts? Have you checked for an air leak. Shutting off in flight at full throttle usually indicates --- fuel starvation from a problem in the delivery plumbing, or too lean a fuel mixture, or overheating from a variety of reasons. Not many choices -- these engines are very simple, so it is findable & fixable (don't discount bad tuning yet). |
RE: engine woes....
ORIGINAL: britbrat You still didn't tell us what it is --- how can we help with no real information? What fuel? glow fuel, new What prop? 10x9 I have been advised to by a 10x6 prop and will do that. instructor says it should help but not the dieing in flight problem. Is it new, or old? brand new Does it start properly? it starts, but could start better is it had a nose cone Does it transition properly? what is properly? Does it idle? yes Does it blow fuel? only when flooded Was it in a serious crash? no Did you ever dissassemble it? nope How was the idle mixture set? set rich enough to get it to start easily. How was the high speed mixture set? according to the manuall 2 1/2 turns from all the way shut. How is the tank pressurized? there is a hose going from tank to muffler i supose that pressurizes it. Have you checked for loose head bolts & back-plate bolts? on the engine, no Have you checked for an air leak. air leek where? at the base of teh carb? I tighten it down every time I go out. Shutting off in flight at full throttle usually indicates --- fuel starvation from a problem in the delivery plumbing, or too lean a fuel mixture, or overheating from a variety of reasons. Not many choices -- these engines are very simple, so it is findable & fixable (don't discount bad tuning yet). |
RE: engine woes....
Sarge -- obviously I'm not communicating well. Is there some reason that you won't tell us what kind of Thunder Tiger it is? Is it a GP version (& what size), or is it a Pro version (& what size). This REALY MATTERS -- they have very different carburators & different tuning methods.
Also please answer the questions asked, or we can't help. |
RE: engine woes....
possible leak inside the tank on the fuel tubing to the clunk. tank still pressurizes and hold pressure but air can leak into tube inside tank and let fuel pass out. will not leak until fuel is used up and is below leak point
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RE: engine woes....
ORIGINAL: britbrat Sarge -- obviously I'm not communicating well. Is there some reason that you won't tell us what kind of Thunder Tiger it is? Is it a GP version (& what size), or is it a Pro version (& what size). This REALY MATTERS -- they have very different carburators & different tuning methods. Also please answer the questions asked, or we can't help. |
RE: engine woes....
I agree with rlipsett. To test his theory, with the plane on the ground and the tank full, start the engine and run it at full throttle and time it. Does it die before the tank is empty? Try it again. If it dies at about the same time, it would indicate a hole in the fuel draw line inside the tank. Take the tank apart and inspect both lines very carefully. Bend and stretch the tubing to look for any small holes that you might not otherwise see.
Good Luck! Brad |
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