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503 Engine Fogging-OOP-Update, got it.

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Tom Jones

Joined: 12 Mar 2006
Posts: 752
Location: Ellensburg, WA

Posted: Sun Dec 28, 2008 2:25 pm Post subject: 503 Engine Fogging-OOP-Update, got it.

Today I was going to fog the crankcase on my 503 like Rotax recommends for more than a few weeks storage.  I aimed the extension tube in the throat of the front carb and pressed the nozzle down.  You wouldn't believe it but the extension tube on the fogging oil can came off and shot straight into the basement of the crankcase.  The engine wasn't running.



I took the carb off to get a better look but can't see it.  Any ideas how to get it out?  Only way I can think of is to take the cylinder off.



To add insult to injury I got stung by a dormant hornet between two fingers when I picked up a wrench.  Its been zero degrees for two weeks here.

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_________________
Tom Jones
Classic IV
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA

Last edited by Tom Jones on Mon Dec 29, 2008 2:04 pm; edited 1 time in total

Paul A. Franz, P.E.

Joined: 02 Dec 2008
Posts: 280
Location: Bellevue WA

Posted: Sun Dec 28, 2008 3:03 pm Post subject: 503 Engine Fogging-OOPS

On Sun, December 28, 2008 2:25 pm, Tom Jones wrote:

 	  Quote: 	
		   



 Today I was going to fog the crankcase on my 503 like Rotax recommends for more than a

 few weeks storage.  I aimed the extension tube in the throat of the front carb and

 pressed the nozzle down.  You wouldn't believe it but the extension tube on the

 fogging oil can came off and shot straight into the basement of the crankcase.


	


With luck like that, only the worst could be expected. What would that be? Well, I'd

say, taking the jug off and not finding the extension tube inside because when it blew

off, it actually went somewhere else.



 	  Quote: 	
		   I took the carb off to get a better look but can't see it.  Any ideas how to get it

 out?  Only way I can think of is to take the cylinder off.


	


There certainly isn't a lot of space inside there for an object to hide. When the

crank throw is at the bottom there's not enough room for anything to hide under it.

But of course when it is at the bottom the piston is blocking your view. If the little

extension has iron content, maybe a magnet on a flex would find it. I might also try

some balled up masking tape on a flex which might stick to a small piece.



Given that it is so cold there and everything might be oil coated getting something to

stick might be a waste of time.



Maybe a blast of compressed air could flip it into view?



Not worth spending much time trying unsuccessfully to retrieve it before proceeding to

disassembly.



 	  Quote: 	
		   To add insult to injury I got stung by a dormant hornet between two fingers when I

 picked up a wrench.  Its been zero degrees for two weeks here.


	


Yipes, that can produce some painful swelling.



-- 

Paul A. Franz

Registration/Aircraft - N14UW/Merlin GT

Engine/Prop - Rotax 914/NSI CAP

Bellevue WA

425.241.1618 Cell

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_________________
Paul A. Franz, P.E.
Registration/Aircraft - N14UW/Merlin GT
Engine/Prop - Rotax 914/NSI CAP
Bellevue WA
425.241.1618 Cell
425.440.9505 Office

Tom Jones

Joined: 12 Mar 2006
Posts: 752
Location: Ellensburg, WA

Posted: Mon Dec 29, 2008 2:08 pm Post subject: Re: 503 Engine Fogging-OOP-Update, got it.

I used a small mechanic's mirror to look around in there and could see the little red bugger but managed to push it down out of sight trying to grab it with a flex claw.  Ended up taking the cylinder off to get it out.  Just ordered the gaskets to put the engine back together.



It was an expensive lesson from the school of hard knocks.

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_________________
Tom Jones
Classic IV
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA

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