How to build smoke exhaust system on your RC Air plane

[robprestonful]

is there another alternative for smoke oil? other than baby oil, diesel or the Super dry smoke oil?

[soverato3]

my engine smokes better witout this system

[vanepico]

won't putting a hole in the back of the crank case remove all the fuel pressure? I have an old MDS38 i want to fit a smoke system to...

[LieAirsport]

It works for me. You should try...

[caricioplanor]

multumesc pentru ajutor, vad ca sti romana.

sper sa nu stric motorul daca dau o gaura in carter

bafta

[caricioplanor]

fratilor, a inteles careva de unde scoate asta presiune pt rezervorul de motorina?

[LieAirsport]

I´m not that good in Romanian language... ;)

If google translate is right, you ask where the pressure comes from?

At 0:29 you see that Oil tank pressure comes from crank case.

Fuel tank pressure comes from muffler as normal.

Hope that helps.

[atvmaster281]

Whats the name of the song?

[LieAirsport]

Heard of the word Please? have you not?

I dont know the song name. It's in YouTube AudioSwap.

[MrSkjold1]

Hey fuvking good video man, it was very good for me. I have learn alot of this should bee moore of them.Good

[LieAirsport]

thank you man!

[madmikerc888]

hey man how do you pressurize both the fuel tank and the smoke oil tank...are u gettin the pressure for both from the engine or is one tank using a fuel pump

thanks

Mike

[LieAirsport]

Hi, at 0:29 you see the answer.

Oil pressure comes from crank case.

Fuel pressure comes from muffler as normal.

no fuel pump.

[wildcardjoker]

I have an evoulation 46-- 2 stroke, ive checked around and smoke pump requires a smoke muffler or pre heater coil to heat oil.evo said that nitro engines wont work with smoke pumps.doesnt get hot enought.and no muffler would work.gas engines only????

[LieAirsport]

No doubt gas engines is the best for smoke production. Cause of the higher exhaust temperature (Turbines is even better).

Those planes is costy, (I'm

Two stroke glow, may need a bit experimenting and adjustment to get good smoke,

And don't listen to all words of a Seller.

Listen instead to the users.

Take a look in Youtube, and learn from others experiences, and try them yourself.

[petujf]

Thank you friend, THANK YOU VERY MUCH.

[petujf]

...sorry friend, only one question; in the engine: where are the two connection...where in what possition?

THANK YOU

[LieAirsport]

The pressure is taken from the cover at the back of the motor as seen at 0:29s (crank case cover).I drilled a hole and installed a nipple.

The oil is feed into the exhaust via the black neoprene hose as seen at 0:11s. As close as possible to the cylinder I drilled a hole and installed a nipple.

[petujf]

Hi, is nice.

I have an O.S. .46 nitro engine. This is Ok for that kit...I need other tank, other oil?

What is the number kit or do you have pictures of complete kit.

Thanks...

Jose from Chile

[lee0ez]

you need to try baby oil

[123450197]

did that give a little more smoke by making the fluid going around the head a couple times

[LieAirsport]

Not at first. It got better when I got the heat insulating tape over the tubing.

[corcholato]

It worked, if you see my number II test you'll see smoke amount is pretty decent, it's a bit hard to see due to sun went down =), I think today it's going to be the fight test. Thanks!!, if weren't for your video I Wouldn't started with this project

[corcholato]

well, I took my chances and dirlled the crankcase, and guess what, it produces pressure! after installing the fitting and closing the engine (the hard part was to select a spot to drill away from moving parts)I connected a silicon hose and turn the prop by hand and there was air (a fair ammmount) blowing thru the hose, I went to sleep happy hehe, I will continue today, I'm sure it will work! may be a check valve will help to maintain the pressure in the tank, like a YS engine fueling system does

[LieAirsport]

Partumber is DUB255. costs $10.99 at towerhobbies. Its not a comlete kit.

You'll need to add a Oil/gassoline proof tank, and a servo.

Remember, dont use nitro silicone tubing in the oil system at all. It will dissolve.

(also the one inside the tank)

The kit comes with the black heat resistant Neoprene hose. Use that.

You can also use yellow Tygon hose, but it's not that heat resistant. Use fuel line clips to avoid mess...

I'll think your Saito.72 will do better than mine.

[corcholato]

I found the kit at a local hobby store, but when read the back label instructions saw a note "this product wont work on 4cicle engines". I sent a note to dubro asking them why, if it's because the cranckcase pressure o the exhaust temperature, I'd like to figure out because I really want my Piper Cub with the Saito to smoke, I am waiting for dubro to respond., by the way the kit comes as you showed in your video, valve,tubing, and fittings.

[corcholato]

I got the response from Dubro, seems that the problems is that 4 cycle engines don't generate enough pressure to make the smoke fluid flow to the exhaust, think I'm going to need a pump

[corcholato]

hi, I found the product at dubro page, but it does not seem to be a smoke kit, they seem to sell valve, fittings and tubing separatelly. what is the dubro part number for the kit you bought?, I'd like to put the system on a Saito .72, do you think it will work?

Thanks

[calmatosport]

i have an idea of pressiuring a metal tank with somthing of a bike pump, and then using a servo to regulate te fluid flow.

I tried smog machine fluid, but then the engine RPM drops by 1500 rpm and then there is even less ''normal'' smoke.

[nibbler125]

what if you used fog machine liquid i know that heat causes it to turn from liquid to fog and a little goes a long way

[LieAirsport]

Have not tried it yet. But I think it would do good. The fog machine liquid seems to be waterbased and made of Glycerol and glycol.

But on some web pages they say the oil based is more persistent than waterbased.

An oil based is ViCount.

[skorpijonSLO]

I did not doit like you.

I have oil tank pressure from exhaust. I didn't want to drill in to motor. It's easyer to replace exhaust if something went wrong.

[LieAirsport]

Engine runs fine with smoke on.

Yes, the engine rpm drops a bit. not much.

It's caused by the exhaust backpreassure like you mentioned. (it's the same with a Skywriter pump)

There is no negative effect using the crankcase preassure.

To much or to little oil will decrease smoke effect. Anyway, the two stroke engine hasn't the optimal exhaust temperature.

[calmatosport]

did the engine run just as good as before?

couse youre increasing the vollume of the crankcase with the pipe to the tank.

also youre changing the densety of the exhoust gasses when your injecting extra fluid in the exhoust, this may couse additional back pressiure.

I could be wrong, i havn't studied to make smoke systems.

I tried it with diesel injection at the same place you do, but i only got about 20% more smoke and a RPM drop of 300rpm

[jnbjabnk]

where did you buyed the rc thing

[LieAirsport]

At local hobby store.

Try google for online stores

[fanizelli]

did it work?

I bet i didn´t!