---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Fri 08/08/08: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:01 AM - Re: Rotax 912ULS Oil Pressure Indication (Catz631@aol.com) 2. 06:28 AM - Re: Re: Rotax 912ULS Oil Pressure Indication (Ken Arnold) 3. 12:01 PM - Re: Rotax 912ULS Oil Pressure Indication (Roger Lee) 4. 01:44 PM - Re: Re: Rotax 912ULS Oil Pressure Indication (Ken Arnold) 5. 07:06 PM - Re: Rotax Engines-List: 91 octane and time to be heard (Roger Lee) ________________________________ Message 1 _____________________________________ Time: 06:01:04 AM PST US From: Catz631@aol.com Subject: Re: RotaxEngines-List: Rotax 912ULS Oil Pressure Indication Ken, I too had a similar indication in my 912.Thought it was really odd so I called Dean at Lockwood and just started to describe my oil pressure indications. Before I could get it all out of my mouth he said "the oil pressure goes up when you pull the power back doesn't it ? " I said yes but how did you know. He said that is a common thing with the 912. He said,as Roger did,it has to do with the ground on the oil pressure sensor. I replaced my sensor(Westach) with another one due to the sensor reading 10 lbs too low and it still does it. When I pull back to 2000 rpm my oil pressure "pops" to 60 lbs. Wierd engine ! Dick Maddux Fox4-1200 Rotax 912UL Pensacola, Fl **************Looking for a car that's sporty, fun and fits in your budget? Read reviews on AOL Autos. (http://autos.aol.com/cars-BMW-128-2008/expert-review?ncid=aolaut00050000000017 ) ________________________________ Message 2 _____________________________________ Time: 06:28:13 AM PST US From: "Ken Arnold" Subject: Re: RotaxEngines-List: Re: Rotax 912ULS Oil Pressure Indication Thanks Roger, Seems like the 912 is unique. Another owner had same problem. Will let you know how it comes out. Ken ----- Original Message ----- From: "Roger Lee" Sent: Thursday, August 07, 2008 7:32 PM Subject: RotaxEngines-List: Re: Rotax 912ULS Oil Pressure Indication > > Hi Ken, > > These sound like very real numbers. A few years back Rotax liked a little > more pressure than today. They now like the volume over pressure. If you > are in the 40's-55 you are good to go. If you drop into the 30's it is not > necessarily bad, but I like to test the system and see if the pressure is > real or like in many cases it is the oil pressure gage. If your oil > pressure goes down with throttle to the 20's or maybe the 30's and then > back up at idle check the ground. You probably have one, but an incomplete > ground. I chased one of these one day with a meter and the meter said I > had a ground, but when I finally jumped around the old ground with a new > ground the problem was solved. Oil pressure senders do bad bad at times on > the Rotax engine from vibration. It is now approved to remote mount the > oil pressure sender to a new location. > > -------- > Roger Lee > Tucson, Az. > Light Sport Repairman - Maintenance Rated > Rotax Service Center > 520-574-1080 > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=197223#197223 > > > ________________________________ Message 3 _____________________________________ Time: 12:01:15 PM PST US Subject: RotaxEngines-List: Re: Rotax 912ULS Oil Pressure Indication From: "Roger Lee" Hi Ken, Don't bother with new senders or gages. This is normal. -------- Roger Lee Tucson, Az. Light Sport Repairman - Maintenance Rated Rotax Service Center 520-574-1080 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=197379#197379 ________________________________ Message 4 _____________________________________ Time: 01:44:00 PM PST US From: "Ken Arnold" Subject: Re: RotaxEngines-List: Re: Rotax 912ULS Oil Pressure Indication Hi Roger, Thanks for the info. Will stay the course. Ken do not archive ----- Original Message ----- From: "Roger Lee" Sent: Friday, August 08, 2008 3:00 PM Subject: RotaxEngines-List: Re: Rotax 912ULS Oil Pressure Indication > > Hi Ken, > > Don't bother with new senders or gages. This is normal. > > -------- > Roger Lee > Tucson, Az. > Light Sport Repairman - Maintenance Rated > Rotax Service Center > 520-574-1080 > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=197379#197379 > > > ________________________________ Message 5 _____________________________________ Time: 07:06:55 PM PST US Subject: RotaxEngines-List: Re: Rotax Engines-List: 91 octane and time to be heard From: "Roger Lee" Swift Fuels Home: Meet Our Team Test Videos Swift Renewable Fuels Welcome to the next generation of aviation fuels. In fact, this is the introduction of the first and only completely renewable fuel. The current fuel used in piston fired aircraft is 100 Low Lead (100LL). The United States and Europe have banned the use of 100LL due to tetraethyl lead which is needed to bring the octane number to 100. There currently is a moratorium on this ban until 2010. Swift has this solution. Unlike the current process of refining crude oil to arrive at a final fuel, we synthetically create hydrocarbons from bio-mass. This creation method is superior to the existing refining method because we maintain control over the entire process giving us the flexibility to meet or exceed current ASTM specifications. The advantages of Swift Bio-Synthetic Fuel are: Seamless replacement of 100LL (no engine modifications) 15-25% increase in range over 100LL (no oxygenates) 20% drop in pollutants over the current 100LL fuel 15% more volumetric energy than 100LL No need for stabilizers or additives More Information Site Terms | Privacy Policy | Contact Us | FAQ Copyright 2008 Swift Enterprises. -------- Roger Lee Tucson, Az. 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