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Storing and laying up a Rotax 912S

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flyingphil2

Joined: 04 Dec 2009
Posts: 117

Posted: Mon Feb 21, 2011 5:08 am Post subject: Storing and laying up a Rotax 912S

Hi,



I could do with some advice about storing an engine.  I'm in the middle of a aircraft build which will take a few more years yet.  I did plan to buy a new Rotax 912S when the time comes but with the rising VAT rate and euro exchange here in the UK, it's looking more likely that I'll source one second hand.



I've seen a few good engines advertised that are low hours and in good condition.  I could buy one now and store it or I could wait until nearer the time when I'm ready and hope a decent one comes up.



My question is, what are the issues or implications of storing a Rotax 912S for 2 -3 years ?  I think there is a procedure for laying up an engine but I can't find this anywhere.



Any comments?



Thanks,



Phil

bob(at)fly-ul.com
Guest

Posted: Mon Feb 21, 2011 5:57 am Post subject: Storing and laying up a Rotax 912S

On 05:08 AM 2/21/2011, flyingphil2 wrote:



 	  Quote: 	
		  My question is, what are the issues or implications of storing a Rotax 912S for 2 -3 years ?  I think there is a procedure for laying up an engine but I can't find this anywhere.


	


There's two places I can see, where Rotax talks about how to preserve an engine:



(1) Operator manual, section 8.1



http://www.rotax-aircraft-engines.com/portaldata/5/dokus/d04670.pdf



(2) Heavy Maintenance manual, section 5.2



http://www.rotax-aircraft-engines.com/portaldata/5/dokus/d05014.pdf

--

Bob Comperini

e-mail: bob(at)fly-ul.com

WWW: http://www.fly-ul.com

lucien

Joined: 03 Jun 2007
Posts: 721
Location: santa fe, NM

Posted: Mon Feb 21, 2011 7:21 am Post subject: Re: Storing and laying up a Rotax 912S

 	  bob(at)fly-ul.com wrote: 	
		  On 05:08 AM 2/21/2011, flyingphil2 wrote:



 	  Quote: 	
		  My question is, what are the issues or implications of storing a Rotax 912S for 2 -3 years ?  I think there is a procedure for laying up an engine but I can't find this anywhere.



	


There's two places I can see, where Rotax talks about how to preserve an engine:



(1) Operator manual, section 8.1



http://www.rotax-aircraft-engines.com/portaldata/5/dokus/d04670.pdf



(2) Heavy Maintenance manual, section 5.2



http://www.rotax-aircraft-engines.com/portaldata/5/dokus/d05014.pdf

--

Bob Comperini

e-mail: bob(at)fly-ul.com

WWW: http://www.fly-ul.com 	




By the way, any idea what they mean by "corrosion inhibiting oil"? I.e. what oil should be used for this? Just curious...



LS

_________________
LS
Titan II SS

rampil

Joined: 04 May 2007
Posts: 870

Posted: Mon Feb 21, 2011 7:31 am Post subject: Re: Storing and laying up a Rotax 912S

Despite the anti-corrosive oil, you will

burn up your warranty in storage.



ijr

_________________
Ira N224XS

pchristensen10(at)austin.
Guest

Posted: Mon Feb 21, 2011 9:39 am Post subject: Storing and laying up a Rotax 912S

Bob,



According to a seminar I heard from the Lockwood people (at) Oshkosh, Rotax 

engines wear out just sitting.  That is, seals and gaskets go bad.  It 

is a consideration.



Pete



On 2/21/2011 7:54 AM, Bob Comperini wrote:

 	  Quote: 	
		   



 On 05:08 AM 2/21/2011, flyingphil2 wrote:



> My question is, what are the issues or implications of storing a Rotax 912S for 2 -3 years ?  I think there is a procedure for laying up an engine but I can't find this anywhere.

 There's two places I can see, where Rotax talks about how to preserve an engine:



 (1) Operator manual, section 8.1



 http://www.rotax-aircraft-engines.com/portaldata/5/dokus/d04670.pdf



 (2) Heavy Maintenance manual, section 5.2



 http://www.rotax-aircraft-engines.com/portaldata/5/dokus/d05014.pdf

 --

 Bob Comperini

 e-mail: bob(at)fly-ul.com

 WWW: http://www.fly-ul.com

bob(at)fly-ul.com
Guest

Posted: Mon Feb 21, 2011 9:46 am Post subject: Storing and laying up a Rotax 912S

On 09:35 AM 2/21/2011, Pete Christensen wrote:

 	  Quote: 	
		  



Bob,



According to a seminar I heard from the Lockwood people (at) Oshkosh, Rotax engines wear out just sitting.  That is, seals and gaskets go bad.


	


That is true. The manuals talk about when an overhaul must be done (engine running time, elapsed time since last overhaul)

--

Bob Comperini

e-mail: bob(at)fly-ul.com

WWW: http://www.fly-ul.com

raybot(at)comcast.net
Guest

Posted: Mon Feb 21, 2011 4:00 pm Post subject: Storing and laying up a Rotax 912S

There are a lot of engines in the wings. The rotax is way too expensive and 

alternatives are coming on strong, plus projects and marriages take longer 

and end sooner than we think and the engine will age in storage... my 2$ Ray

---

dashwood

Joined: 24 Jan 2009
Posts: 73
Location: sw ontario canada

Posted: Mon Feb 21, 2011 7:02 pm Post subject: Re: Storing and laying up a Rotax 912S

I'm with Ray on this one. save the money and put it into whats needed now. the warranty will be a big thing  in your future. and improvements are being made on new rotax... and other engines constantly.

if you must there are many views on the  topic on pickling engines. years ago we would pickle car and truck engines by  coating  the outside of engine with grease, a thick coat buttered on,and wrap in burlap and fasten to a skid so in would be protected somewhat. carbs would be remove and immersed in clean gas and sealed tight, not too long here as gas does varnish with age. all orifices of engine are sealed with plates or caps.. then the entire engine is filled with oil... filled!..., crankcase, heads, jugs, valve covers, water jackets. then set in a dry elevated if possible place. make all covers difficult to get off to protect from tampering by little hands if this is  an issue. an engine will sit for a very long time in this condition. it will take some cleaning and flushing but will be in great shape when you are ready. for what is worth my $.02 Ross

_________________
Ross Alexander: CH701 driver 912ul 788tt
It only takes two things to fly, airspeed and money

flyingphil2

Joined: 04 Dec 2009
Posts: 117

Posted: Mon Feb 28, 2011 3:33 am Post subject: Re: Storing and laying up a Rotax 912S

Hi,



Thanks for the replies.  



I've had a think and it makes sense to hold on and save the money at this point.  I reckon laying a Rotax up for a year or two would probably be ok but I think I could possibly take a while longer to complete my build...!



Thanks,



Phil

lucien

Joined: 03 Jun 2007
Posts: 721
Location: santa fe, NM

Posted: Mon Feb 28, 2011 7:41 am Post subject: Re: Storing and laying up a Rotax 912S

 	  flyingphil2 wrote: 	
		  Hi,



Thanks for the replies.  



I've had a think and it makes sense to hold on and save the money at this point.  I reckon laying a Rotax up for a year or two would probably be ok but I think I could possibly take a while longer to complete my build...!



Thanks,



Phil 	




One thing I've thought about doing was converting the engine fund to Euros. That is, if I actually _had_ any money, and knew that a new or rebuilt 912 was definitely in the near future, setting it aside in Euros would mitigate the exchange rate risk of the ever tumbling US dollar. Tho of course you'd still be subject to the Rotax price increase risk, you have that risk anyway. 



So since you're definitely going to buy one, that might be something to consider, tho I havn't looked at the exchange rate lately (might not be a good deal yet).



LS

_________________
LS
Titan II SS

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