---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Fri 10/26/12: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:13 PM - Pre-oiling 912ULS (Jim Clayton) 2. 03:47 PM - Re: Pre-oiling 912ULS (Roger Lee) 3. 05:02 PM - Re: Re: Pre-oiling 912ULS (Jim Clayton) 4. 06:34 PM - Re: Pre-oiling 912ULS (Roger Lee) ________________________________ Message 1 _____________________________________ Time: 02:13:40 PM PST US From: Jim Clayton Subject: RotaxEngines-List: Pre-oiling 912ULS Greetings all: I looked in the archives and didn't see an answer so here goes: I have a 912ULS, in the crate I bought it in 2005. I just unwrapped it and would like to pressurize the oil system with engine oil since the engine has been sitting so long and I am very concerned about roating the engine (dry) to get the internal pump to move oil. I have a 12 volt oil pump, return tank and accessories to accomplish this, however I have a question: Can I simply feed the oil pump inlet hose-barb with oil pressure to circulate oil throughout the gallery? I am concerned the pump will not pass oil if the engine is not turning. Alternately I could remove the pressure sender and feed the gallery from there unless there is some reason not to. My preference is to feed through the larger oil pump inlet in the hipe of greater flow through the gallery. I plan to return the oil by draining the crankcase through the return hosebarb and back into the return tank. Any thoughts or suggestions to circulate oil through my engine? Thanks, Jim Kolb Mark3X 912ULS 80% completed ________________________________ Message 2 _____________________________________ Time: 03:47:58 PM PST US Subject: RotaxEngines-List: Re: Pre-oiling 912ULS From: "Roger Lee" Hi Jim, You will need to do a good oil purge. Here is the Rotax link to a video: http://www.rotax-owner.com/information-reg/expanded-video-instructions-reg/33-exp-si-912-018 In the Installation manual section 13.10 page 78 (Oil Purge) are the same instructions. I would advise that you go to the Rotax Owner website and download the 5 manuals you will need for your engine. They will be very helpful and almost all your answers will be there. This is very important for this first start, but is easy to do. If It was my first start I would do it twice. It's very easy. twice just means rotating the prop twice as much. -------- Roger Lee Tucson, Az. Light Sport Repairman - Maintenance Rated Rotax Repair Center - Heavy Maint. Rated Home 520-574-1080 TRY HOME FIRST Cell 520-349-7056 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=386073#386073 ________________________________ Message 3 _____________________________________ Time: 05:02:39 PM PST US From: Jim Clayton Subject: Re: RotaxEngines-List: Re: Pre-oiling 912ULS Hi Roger, Thanks for the response. I agree on the value of the Rotax Owner site. For years I got the updates, and am now reviewing the latest docs. I just joined the pay portion (is paying to play new?) and reviewed the video. The procedure does make sense, and I recall in the maintenance class they stressed the critical importance of purging. That said my question is can I pump oil into the engine *without* rotating it? The procedure suggests air pressure against the tank to force oil into a turning engine. I am fortunate to have an electric oil pump so I don't need the air pressure. I am several months from engine start, and have had the engine in its crate, wrapped in plastic for years. I want to circulate oil without rotating what I fear are dry (or nearly so) bearing journals. When engine start comes I will follow this purging procedure to the letter. Until then I wish to circulate oil, without first turning the engine. I will re-examine the engine docs to look at the oil pump/bypass topology, but to save time I was asking if anyone on this list knew if oil can be pumped past a stationary oil pump. My intent is to rig up my system and pump fresh oil through the gallery several times a month until engine installation. If I am lucky perhaps that will make up for having a new engine in mothballs so long. Do you (or anyone else) know if a non-turning engine will allow oil under pressure past it? Thanks, Jim --- On Fri, 10/26/12, Roger Lee wrote: > From: Roger Lee > Subject: RotaxEngines-List: Re: Pre-oiling 912ULS > To: rotaxengines-list@matronics.com > Date: Friday, October 26, 2012, 3:47 PM > --> RotaxEngines-List message > posted by: "Roger Lee" > > Hi Jim, > > You will need to do a good oil purge. > > Here is the Rotax link to a video: > http://www.rotax-owner.com/information-reg/expanded-video-instructions-reg/33-exp-si-912-018 > > In the Installation manual section 13.10 page 78 (Oil Purge) > are the same instructions. > > I would advise that you go to the Rotax Owner website and > download the 5 manuals you will need for your engine. They > will be very helpful and almost all your answers will be > there. > > This is very important for this first start, but is easy to > do. If It was my first start I would do it twice. It's very > easy. twice just means rotating the prop twice as much. > > -------- > Roger Lee > Tucson, Az. > Light Sport Repairman - Maintenance Rated > Rotax Repair Center - Heavy Maint. Rated > Home 520-574-1080 TRY HOME FIRST > Cell 520-349-7056 > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=386073#386073 > > > > > > > > RotaxEngines-List Email Forum - > - MATRONICS WEB FORUMS - > List Contribution Web Site - > -Matt > Dralle, List Admin. > > > > ________________________________ Message 4 _____________________________________ Time: 06:34:05 PM PST US Subject: RotaxEngines-List: Re: Pre-oiling 912ULS From: "Roger Lee" Your going to have to rotate the engine to get into critical areas and past the pump. -------- Roger Lee Tucson, Az. Light Sport Repairman - Maintenance Rated Rotax Repair Center - Heavy Maint. 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