WestCoast Posted January 30, 2007 Share Posted January 30, 2007 The following new and revised Service Instruction documents have been released by Rotax: SI-912-010 R2, SI-914-011 R2 - OIL CHANGE ON ROTAX ENGINE TYPE 912 AND 914 (SERIES) SI-912-018, SI-914-020 - PURGING OF LUBRICATION SYSTEM FOR ROTAX ENGINE TYPE 912 AND 914 (SERIES) These new and revised service documents may be downloaded from www.rotax-owner.com SI-912-010 R2 - http://www.rotax-owner.com/si_tb_info/getdoc.asp?USERID=byteboy&DOCID=SI-912-010&S_TYPE=NW SI-914-011 R2 - http://www.rotax-owner.com/si_tb_info/getdoc.asp?USERID=byteboy&DOCID=SI-914-011&S_TYPE=NW SI-912-018 - http://www.rotax-owner.com/si_tb_info/getdoc.asp?USERID=byteboy&DOCID=SI-912-018&S_TYPE=NW SI-914-020 - http://www.rotax-owner.com/si_tb_info/getdoc.asp?USERID=byteboy&DOCID=SI-914-020&S_TYPE=NW Regards Dave Link to comment Share on other sites More sharing options...
skippydiesel Posted November 3, 2017 Share Posted November 3, 2017 Hi, Just completing my 800hr operation and 5 year rubber replacement. Last time I did this I had easy access to a nice compressor with good regulator (to get the pressure down to below 15 psi) to do the PURGE. Accessing a compressor is now more problematic SOooo I thought (dangerous) is there a way to ensure complete uninterrupted oil circulation within 912 ULS after complete oil removal due to replacement of hoses & filter. This is what I have done: After replacement of all oil lines/hoses & oil filter - Partially filled (not much) new filter with fresh oil before installing I put 2 litres of oil in the crankcase, via crankcase to tank return line (& funnel) Put as much oil as would gravity feed down tank to pump line (may be 200 ml). Took quite a while with much massaging/squeezing of lines for all air to escape. Put remainder of oil in tank - only just showing on dipstick. Left to settle overnight. (Total oil removed 3 litres) Total oil added 3 litres " Sloooowly turned over engine - started to get "THE GIRGLE within about 6 compressions. Continued to slow turn 20 + full revolutions (each compression producing the expected flatulence). Checked oil level in tank - just below MAX - added 100ml to make up (probably filter capacity). I have not started engine. Question is - have I done enough to ensure oil circulation 100% complete with no air bubbles preventing adequate lubrication to some vital part? OR Should I go get that pesky compressore and DO THE PURGE?? Link to comment Share on other sites More sharing options...
skippydiesel Posted November 8, 2017 Share Posted November 8, 2017 Follow up - dont have the nerve to start the engine without doing the recommended PURGE. Went & got the compressor turned down the pressure to below 15 psi. Did the purge. All good. Engine running like a "sowing machine" 1 1 Link to comment Share on other sites More sharing options...
rankamateur Posted November 8, 2017 Share Posted November 8, 2017 sewing machine?? Gee we miss Dazza! Only seen him blow by once this year. 1 1 Link to comment Share on other sites More sharing options...
skippydiesel Posted November 8, 2017 Share Posted November 8, 2017 Fair cop Link to comment Share on other sites More sharing options...
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