Smoking can be dangerous.

[asra]

Rotax Model 99 582 Oil Injected.During a touch and go I herd a loud bang, like hitting a rock with a bat, after which a different sound appeared like flapping foil. As I had just taken off and ran out of runway, I opted for a very fast 50 ft circuit and landed.As I slowed to a safe taxi speed I turned to check the motor and found a huge plume of smoke billowing from my motor.I then immediatly killed the motor and exited.On close inspection I found the oil injection bottle leaking oil onto the exhaust manifold, causing all the smoke.Luckely it was only smoke and no flames.After a closer inspection I found one of the 2 origional Rotax Oil injection bottle mounting bolt and nut missing.This allowed oil to flow out of the hole onto the hot exhaust.The bolt must have rattled off during landing and took a nice chunk out of my prop. The flapping noise came from the damaged leading edge foil. I found the bolt inside the oil tank. For thoughs who operate a oil injected Rotax 582 I recommend you check these nuts and bolts, and if possible replace the standard nut with a nylock nut.After a good clean she is as good as new except for the prop, but that is fixable.Safe Flying Regards Sam. []Image Insert: 44.74 KBImage Insert: 41.79 KBImage Insert: 80.84 KB

[NiqueNaque]

Sam,Its a neat rig you've got there.Leave the original nut there, there is enough thread to put a nylock on top of it, with some lock tite to be sure to be sure..The orginal nut will hold the bolt in position while you tighten up the nylock.Cheers,Nick.

[asra]

Sam, Dave B at Lethbridge had exactly the same thing happen, as well as later on, the alloy oil tank holding bracket cracked.Aussie Paul. []www.firebirdgyros.com

[asra]

Yeap, replaced the nuts with nylocks. I was lucky to notice it on the ground. The mount for the oil bottle lasted about 5 hours... these straps have done the job since.Image Insert: 18.09

[asra]

David, did the oil bottle bracket crack along the fold, because it seems by the photo above, you are still using the mounting bracket.Have you any photo's of its crack.I will have to keep an eye on it now on !!!!!Thanks mate Regards Sam.

[asra]

Sam, I'll grab a photo tomorrow and post when I get back. I still have the broken one in place. Yep, cracked right on the fold. As it is attached via the head bolts, thought I'd leave it alone. IMHO, might be worth sticking a couple of cable ties around the bottle as insurance. Dave

[asra]

Sam, photo of the crack:-Image Insert: 44.84

[NiqueNaque]

Dave,Those cable ties are not UV stabilised, replace them with black ones, they'll last a little longer..Cheers,Nick.

[asra]

But Nick, the white ones match the bottle.Dave

[asra]

You would expect the oil injection bottle mounting system to last the life of the engine.[!]I will be including a very close look at the oil bottle and mount during my pre-flight "NOW ON".Regards Sam.

[asra]

Howdy SamI know this is a realy dumb question, but why cant you just mix the gas and oil, and get rid of the trouble maker? I do that with my Mac motor and It always is perfect, and I don't worry about something breaking and going through my prop.Not being a smart aleck, just wondering. Yours is not the first I've seen.CheersSonnyIntelligence is not a privilege,it is a gift and should be used for the good of mankind.

[birdy]

Why mount the tank on the engine??Even a SCG wouldn't do a stupid thing like that.Ignorance is bliss............but only till you realise you were.You can always get the answer you want, if you ask enough experts.

[NiqueNaque]

Dave,The black will be a beautiful contrast on the white background... don't tell me you won't make a statement, such as black is black, and white is white..Nick.

[asra]

SonnyThe new oil injection is a great thing as it supplies the oil straight to the areas that require it. It also minimizes ware during startup after long periods of non use.The oil injection system means I can travel cross country and no need to carry oil, just fill tank of fuel and your away.The system also reduces the amount of oil used, and if oil is left mixed in fuel for long periods it does break down and loose some of its propeties.The final reason is it aids in raising the C of G of your machine, by having the bottle up high, on the motor, or mast.Cant think of any more !!!!!!Regards Sam. []