Supertigre Engine issues
 

i have a brand nerw out of the box supertigre GS40 engine, on a standard plane kit, now i have tryed to crank the engine over useing the guid that supertiger gives you... now the engine didnt start at all not even trying to, the glow plug heats up, fule gets to the piston i think im not sure how to check that, but i have noticed a leak where the prop meets the shaft the spins it, is this normal? i dont think it is but i danno. i have tryed everything but it just wont start, im going to take it back to my LHS to see what they can do but id rather not pay more for what i have already. any ideas would help heeps

RE: Supertigre Engine issues
 

Good idea.. then swap it for an OS ;) :D

I take it that you are able to turn the engine over? You can get the piston beyond the center of rotation, a complete rotation of the prop with compression on the up-stroke?

You may have to much fuel in the engine. Perhaps remove the glow plug and turn the engine over with an electric starter for a few seconds to get some of that fuel out, turn it upside down and see if excess fuel runs out of the carb and try again?

You turned the needle valve all the way in till it stops then turned it out the recommended number of turns for the initial start? And your glow plug is actually good? May wish to swap it out with a new one and try again.

But that fuel coming out the bushing seal at the prop shaft does not sound good.

If all else fails, do bring it back and see if the LHS can help you out with that.

THEN, get yourself an OS.. :D

RE: Supertigre Engine issues
 

The SuperTiger motors seem to be great motors My neighbor runs them and has no problems at all. I spent nearly 500 for a motor and he spent 140 on a SuperTiger to fly a bigger and heavier plane. My thinking has changed 360 ways lol. But don't think anything should be comming out of the prop shaft. Like all stuff sometimes you just get a bad one maybe.

RE: Supertigre Engine issues
 

I have 2 of the GS40`s on trainers . Both had to to have the carbs rebuilt and reset. But once repaired , they have run great. Both are on Lady student planes and they are able to fly with them well.
As CGR suggested , you may have your engine flooded and is why you have noticed fuel coming out the front bearing. First check your glow plug. It may lite up ,but not the last coil or 2, which means it`s bad. While you have the glow plug out . spin the engine over and get rid of any excess fuel. Did you mess with the LS needle ? Lightly turn the LS all the way in , place a piece of fuel tube on the fuel inlet nipple and blow air into tube. Slowly back out the LS needle till you can hear air entering the carb. This will give you a close starting setting.
Screw the HS all the way in , back out 3 1\2 turns. Do NOT attach glow driver . Open throttle to wide open , place finger over carb and rotate prop clockwise till you can see the fuel pulled into the carb. Place throttle in the idle position and attach glow driver and try to start .
Good luck , hope this helps.

RE: Supertigre Engine issues
 

I bought one a couple years ago and couldn't get it to light. Compression seemed low, I sent it to Hobby Services and they sent a new one out. It had good compression and started instantly. If you have a hot glow plug, and a squirt of fuel in the carb, it shopuld at least pop once or something... The hobby store (or Supertigre) should warranty it for you, either fixing it or replacing it. Ross

RE: Supertigre Engine issues
 

I do hope you are using an electric starter. I know they add a bit ti the costs but for a new guy they are invaluable until you learn how to tune an engine for hand starting easily. They can make up for a lack of expertise and save wear and tear on you.

RE: Supertigre Engine issues
 

the advice given in a previous post was sound,what fuel are you using?they are a very good engine but do require careful setting up and quite a lot of running in,once they are sorted they will last a lifetime.

RE: Supertigre Engine issues
 

If you expected to take an engine out of the box, mount it on a plane, start it up without no adjustments made to the engine at all. Well if you can find an engine like this, let me know, I'll take a dozen:eek:

RE: Supertigre Engine issues
 

The GS-40 is a ringed engine so it should be run extremely rich at first. Don't run it in like an ABC or it'll have a short life and don't expect the ABC type pinch because it doesn't have any :). Compression may seem low but that's only because the ring needs to be run in for it to seal properly.

RE: Supertigre Engine issues
 

I ran (6) 9 oz tanks through my GS-40 before it was ready to fly, and it took another 1-1/2 gallons to fully break in. I've run over 6 gallons through it and it think its now running stronger than ever. It also hand starts on the first or second flip like clockwork. One of the best engines I've had, and one of the most reliable also.

Hogflyer

RE: Supertigre Engine issues
 

Boy, CGR, you better hope Dar doesn't see your post. He'll straighten you out on that OS issue in a heart beat.:eek::eek::D

RE: Supertigre Engine issues
 

Make sure the head and backplate bolts are tight. loose ones kill your compression and transfer.
My G51 leaked like that when I had it primed. Wasn't a problem.

RE: Supertigre Engine issues
 

I have two of the .45's, one is new, and love them both.
A freind of mine has been a O.S. guy, now he says he is going to the Super Tigers
after messing with mine...

RE: Supertigre Engine issues
 

I'm a newbie, but I've got the ST40. I've had about 8 flights on my trainer. When I bought the ST40, I got it home and set it up for test runs. The very first time I put my starter on it , it started right up. It has continured to run great. I'm sold on them.

CC

RE: Supertigre Engine issues
 

I have the Super Tigre 51 and im sold, they run great (once they are tuned right) and start easy. Just put your finger over the carb spin the prop through 6-7 time grabb the spinner and spin it backwards . Works every time!

Stick 40:eek:

RE: Supertigre Engine issues
 

wow, thanks for all the response guys I rely appreciate the help, ok first things first, the type of fuel im using is 10% recontended by my LHS for the break in process then up to 15% for a bit then 20% for running after its all said and done, iv taken the glow plug out of the engine and had a look at the glow from there, its strong bright and the hole thing lights up, tried emptying out the engine (it was flooded BIG TIME) but after choking the engine and pulling some fuel back in it instantly leaked again.

just to clear a few things up I didn’t just take it from the box and mount it and tun it on, I set the HSN out 3 turns as recommended by Supertiger, I also dropped a few drops of fuel into the head to oil it up and help get things started and choked the engine, basically I followed the instruction book for the engine.

Ill try messing with the LSN as Insanemoondoggie recommended, see if it helps.

ok hope the extra bit of info helps, and thanks again for all the support.

A mate of mine seems to think that my chuck on the fuel line is not placed right or has fallen off would this hinder the engine start in any way?

RE: Supertigre Engine issues
 

Proper setting of your carburetor is a must. Please see:

http://www.rcuniverse.com/forum/m_1579985/tm.htm

RE: Supertigre Engine issues
 

i'm sorry!did you say your lhs advised you to use 20% when it's run in?super tigre engines are designed for and run very well on straight fuel,no need for any nitro with that engine.i expect the same shop would reccommend a 1/2 scale pitts as a trainer as well!;)

RE: Supertigre Engine issues
 

I run my ST on Wildcat 15% and it runs fine.

Stick 40:eek:

RE: Supertigre Engine issues
 

I find that it is usually best NOT to touch the settings on the needles, on a new out of box engine UNTIL it has been broken in.

Most engines come with the needles already set for an initial startup, with the setting a bit rich to boot for proper breakin.


All of my Supertigres have started right up, right out of the box, after TIGHTLY installing the carb ( press down that ring! ) and tightening all of the cap screws.

Note: retighten the cap screws after you have broken in the engine a bit, they WILL come loose again with the heat.


Re: Clunk.

With the tank 1/2 full...

Connect a piece of CLEAN tubing onto your vent line using a piece of brass tubing.

Disconnect the line going to the HS needle and aim it at a receptacle of some sort.

Blow through the vent line.

If the clunk is messed up, you will not get fuel flow.

You can always pull the tank and check it, which IMHO is a better option.

RE: Supertigre Engine issues
 

I run my ST on 12% and it runs great. I've also run it on 5% and 10% with no problems. Very dependable and starts easy - except the first start when I have to get all the after run oil out of it and it takes about 10 seconds for that to happen. If I will fly it the next day I don't use after run oil, just run the fuel out of it.

Hogflyer

RE: Supertigre Engine issues
 

ok great thanks for the all the advice ill give it all a go tonight and see how it goes ill let you all know!

RE: Supertigre Engine issues
 

still no luck with anything!! i must say im loseing faith in the ST's, my LHS seems to think its a factory fault, they cant even get it to run or start or even kick. so i think my best bet is to send it back and get a new one :D

RE: Supertigre Engine issues
 

If you bought if from the local hobby shop then they should replace it free of charge. Also the YS engine is the only one requiring 20% fuel, YS 20/20. The OS will run good on it but the Super Tigres are made to run on 10-15%. I've run a lot of Super Tigre ABC engines and only ever had one problem with one that wouldn't turn over at all. They replaced it immediately.

RE: Supertigre Engine issues
 

Some hobby shops probably don't know anymore about engine problems than you do even though they won't admit it. I'd tell them to either replace it, refund your money or you're never shoping there again. I'll bet the carburator is so out of adjustment you'll need a super tigre specialist to get it running. Someone that knows what they are doing.

Once you get a super tigre engine adjusted properly they run almost as good as any other, especially for the price!