tstotts

I have 3 echos that I have converted to EI and a ryobi w/mag. But I am stuck with this S2000 that needs a needle valve and have had no luck in finding one so converting it to glow gas.

Ralphbf

My Feedback: (27)

I put my carb off a new ST-2300 on my S2000.
Works great. I put a OS carb on my ST-2300.

av8tor1977

My Feedback: (6)

The Super Tiger engines cannot be converted to Gas/Glow without modifications. They need 10 % oil to survive unless they are changed over to needle bearings on the rod, and mods to the crank to live with the needle bearings.

Just wanted to make that clear so nobody burns up a Super Tiger.....

AV8TOR

Ralphbf

My Feedback: (27)

Can't you convert them to Gas/Glow as long as you maintain the proper oil content?

tstotts

I ordered a needle valve for the 2000 but they sent me one for the 2300 and they are not the same. the 2300 has a larger needle. Might just forgo the gas/glo thing and get a 2300 carb. Only thing wrong with the 2000 carb is a broken needle valve.

tstotts

What mods would you have to make on a super tigre to convert to glow/gas

av8tor1977

My Feedback: (6)

You could run it on Gas/Glow if you change the fuel mixture to come out with 10% oil in the final mix. The other option is to change it over to needle bearings on the rod, which is not an easy operation.

Ken Lambert is converting Super Tiger engines, and Keith at BME engines. BME only sells completed engines. Ken might convert your engine for you if he has time, but it's not cheap. (Close to the original price of the engine.)

You also need to come up with an adapter for mounting a Walbro carb. The original glow carb wouldn't work well on Gas/Glow.

AV8TOR

tstotts

I will go with the 10% oil. I made my adapter but not sure about that little hole in the base of the carb and just how it works. Wonder where a fella might find a good breakdown on walbro carbs.

RysiuM

My Feedback: (1)

I guess you are talkinabout the pump hole. It is connected to the crankcase to run the fuel pump.

av8tor1977

My Feedback: (6)

Don't worry about the pulse hole in the carb fitting to your manifold. Block off the pulse hole in the carb with JB Weld. Then drill and tap the pump cover and the engine crankcase, and install fittings and a hose to connect the two.

Here you can see it done on my Super Tiger .91....


AV8TOR

tstotts

Thanks I was worried about that. will make those mods when I finally get the carb.

aero nut

I'm runing my MAGNUM 1.8 on gas/glow with 8-10% oil content ans no further mods than the carb adapter, runs great and no big residue oil to mess with. I'm going to install it to one of my Ryan's Rebel for flight test this week end, I'll keep you posted.

KI8FR

there is a bad thing about gas/glow.... so you have to be very safe.

I made my quadra 42 gas/glow to day, and I got hurt... The engine was on a plane. and I had a frind hold the plane for me.. The plane did have sticks on the tail but I said that the engine can start backwords. so he needed to hold the plane if it did... The prop that was on the plane was a masterair scroow 18x10. a big heave one.. I did not take the fly wheel off the engine yet.. I was just doing a test to see if I like this enging being gas/glow before I made a fly wheel for it....

As my frind was holding on to the plane he hit the swich and terned off the rx. He and I did not know this had hapend.

I gave the prop a flip and it stared on the 1st one, but it was running backwords. I choped the throtle but nuthing.. The prop hub unscrowed and it came off and went flying. The fly wheel came off and hit me in the hip. The engine did not stop running.. I had to put my finger over the carb to get it to stop.. I was screeming.... The carb was open just a little too.... but it doesnot take much with some kind of fly wheel..

All Im saying is. With the enging being able to run backwords. Lock tite is a must on the prop hup or sumthing that will keep it from unscroowing....

I was lucky this time. The fly wheel hit my hip and did not brake it but I know I will have a hard time getting around for a day or two..

Sorry for the bad spelling. I miss the spell checker.... Some times I do not put things on the R/C list cuz I spell so bad.. but this was one thing I needed to let every one know about.... safty safty safty..... It can and it will happen.....

I am not trying to get any one to not want to try gas/glow.. it is grate. I love it.. but it is alot more dangeras then the danger that is there with just gas or glow....

Paul

davewallace

My Feedback: (29)

Hi Paul,
I sure am happy that you are OK. This does make it clear once again that you can't be to safe. Events like this show us just how dangerous our large engines are.

Regards, Dave

av8tor1977

My Feedback: (6)

A while back a model magazine from Europe, (R/C Modeler?), showed a horrible picture of a guy with a mangled hand missing some fingers due to an encounter with a gas engine. Gave me the "Willies" big time.

Please be careful!!

I like to flip start my engines, but I often go ahead and grab the starter to avoid the "reverse start" syndrome. Once you get to know the engine well, and exactly what it wants in the way of prime or choke, throttle opening, etc., the "reverse flip against compression" starting method works well too.

KI8FR don't worry about your spelling. What you write is understandable, and that's what counts.

AV8TOR

KI8FR

Thanks av8tor1977

Ralphbf

My Feedback: (27)

I cut and paste into my word processor, spell check and the cut and paste it back into the forum.
Except this time.

mikenlapaz

KI8FR , Thanks for sharing the experience. I did not know the RCU spell checker was discontinued.
I tried a test sentence on a spelling checker on my toolbar and was pleased.

I jest want to check the Google spell checker.

The spell checker is part of the Google toolbar and it highlighted 4 of 5 purposeful errors in the above sentence and corrected them.
It may be something worth checking out. Missed just as jest is a valid word.

RysiuM

My Feedback: (1)

The messge is much more important than the spelling. Thanks KI8FR. I did not thnk about the prop hub being able to fly off. I have all my prob hubs on a green loctite and so far I was lucky, but who knows how long it will hold.

As for the prop I think I benefit from my different than common design. Most of the home made (or even comercial) prop hubs have a threaded hole and the prop is on the metal screw that goes into the hub. This is not good as when you use screw you have no way to lock it and prevent from unscrewing.
My design is more like glow engines (or RC-gasers). I have a metal (steel) screw loctited into the hub, and then the prop goes over the screw and scrured by two nuts. For the second nut (the locking one) I often use aluminium prop nut - easy fits the electric starter.

To show what I'm talking about, here are comparison between Horizon prop adapter and the thing I have on my engine. BTW I'm not selling anything (don't ask me to make one for you) but maybe someone who does it for living can take this design. It's FREE (my little gift for our safety) .

KI8FR

I just made a prob hub just like that last night.. Have not put it on yet to see how it will do but it is cool that I did the same thing you did. lol
Paul

av8tor1977

My Feedback: (6)

If you look at the pictures in the BME twin 23.6cc thread, you can see how I did my prop hub with a collar that covers part of the crankshaft, and set screws in that collar; tightening it against the crank. This gives a little added insurance that the prop hub doesn't unscrew. My Poulan 42cc is also done this way.

AV8TOR

tstotts

av8tor... got any ideas when Ralph will be back to take care of business? Going to buy another carb. been waiting to long. Thankx

Troy

tstotts

any news on when ralph will reappear and any idea where I can find a carb for my super tiger conversion???

tstotts

I have several gas engines with IE just wanted to play with this old S2000 to see how it would work out. Still looking for a carb for it.

captinjohn

tstotts: I know a guy in Grand Rapids mich that has gobs of Supertiger carb parts. If you still want parts, I will PM you with his email...ect. Capt,n