---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Mon 02/25/13: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:46 AM - Oil Pressure warning? (Thumper) 2. 07:08 AM - Re: Oil Pressure warning? (Roger Lee) 3. 07:19 AM - Re: Oil Pressure warning? (David Joyce) 4. 07:37 AM - Re: Re: Oil Pressure warning? (joeing701@simnet.is) 5. 11:27 AM - Re: Oil Pressure warning? (pestar) ________________________________ Message 1 _____________________________________ Time: 06:46:21 AM PST US Subject: RotaxEngines-List: Oil Pressure warning? From: "Thumper" Roger and others. I have been flying this engine, 912ULS, 2000 model year about 1 year, 635 hours total on the engine. One cold day this winter I started getting a high oil pressure alarm intermittently? Oil temps running consistent 160 degrees, 60psi, OAT in the 40's. Warm up is normal, fly for a little while and I will start getting a high pressure warning on my GRT EIS. It will show low 90's for a few seconds then bounce around between 60 and 90 occasionally going over 90 and triggering the alarm. I can find no pattern? I changed the oil to a lighter weight oil (not filter yet) as a test but no difference? What are the possibilities? If it was going low I would be more concerned. It has happened each of the past three flying weekends but only occasionally. Thanks ahead of time. Dennis Long -------- Dennis Long Oakland TN 2000 Aeroprakt A20 Vista Cruiser Previously Kolb Mark IIIC, 94 Firestar, 84 Ultrastar. 600+hours since 1/1/2009 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=394984#394984 ________________________________ Message 2 _____________________________________ Time: 07:08:46 AM PST US Subject: RotaxEngines-List: Re: Oil Pressure warning? From: "Roger Lee" Hi Dennis, Four common items to look at here and none a big deal. First the oil pressure wire may be loose on the sender so make sure it is tight. The second item here that cause high pressure swings is a poor ground. This is another very common problem. Check your grounds. The third item is the sender itself is usually the culprit. Go to egauges.com and buy a new one for about $30 if the wire wasn't loose. Third you have a 13 year old engine. You may want to change the oil pressure regulator ball bearing, spring and plug screw to the newer style regulator cone. It's about $80 and takes 5 minutes to change. It will be one of these. -------- 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=394986#394986 ________________________________ Message 3 _____________________________________ Time: 07:19:48 AM PST US From: "David Joyce" Subject: Re: RotaxEngines-List: Oil Pressure warning? Dennis, I had the same thing in the middle of nowhere in rural France and my Flydat was much aggravated! It turned out that the wire to the sender was broken - the no signal default reading being a high pressure, so odds on it being a wiring defect. Regards, David Joyce, G-XSDJ On Mon, 25 Feb 2013 06:45:32 -0800 "Thumper" wrote: > > > Roger and others. > I have been flying this engine, 912ULS, 2000 model year >about 1 year, 635 hours total on the engine. One cold >day this winter I started getting a high oil pressure >alarm intermittently? Oil temps running consistent 160 >degrees, 60psi, OAT in the 40's. Warm up is normal, fly >for a little while and I will start getting a high >pressure warning on my GRT EIS. It will show low 90's >for a few seconds then bounce around between 60 and 90 >occasionally going over 90 and triggering the alarm. I >can find no pattern? I changed the oil to a lighter >weight oil (not filter yet) as a test but no difference? > What are the possibilities? If it was going low I would >be more concerned. It has happened each of the past >three flying weekends but only occasionally. > Thanks ahead of time. > Dennis Long > > -------- > Dennis Long > Oakland TN > 2000 Aeroprakt A20 Vista Cruiser > Previously Kolb Mark IIIC, 94 Firestar, 84 Ultrastar. > 600+hours since 1/1/2009 > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=394984#394984 > > > > > > > >Un/Subscription, >http://www.matronics.com/Navigator?RotaxEngines-List >Forums! >Admin. > > > ________________________________ Message 4 _____________________________________ Time: 07:37:33 AM PST US From: joeing701@simnet.is Subject: Re: RotaxEngines-List: Re: Oil Pressure warning? Hello Roger. What is the part number for the oil pressure sender for the Rotax 912 uls on the egauges.com page? Appreciate the help. Johann G. Iceland. ----- Upprunaleg skilabo ----- Fr: "Roger Lee" Til: rotaxengines-list@matronics.com Sent: Mnudagur, 25. Febrar, 2013 15:08:10 Efni: RotaxEngines-List: Re: Oil Pressure warning? Hi Dennis, Four common items to look at here and none a big deal. First the oil pressure wire may be loose on the sender so make sure it is tight. The second item here that cause high pressure swings is a poor ground. This is another very common problem. Check your grounds. The third item is the sender itself is usually the culprit. Go to egauges.com and buy a new one for about $30 if the wire wasn't loose. Third you have a 13 year old engine. You may want to change the oil pressure regulator ball bearing, spring and plug screw to the newer style regulator cone. It's about $80 and takes 5 minutes to change. It will be one of these. -------- 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=394986#394986 ________________________________ Message 5 _____________________________________ Time: 11:27:05 AM PST US Subject: RotaxEngines-List: Re: Oil Pressure warning? From: "pestar" Had exactly the same symptoms, it was the sender. Roger has added extra things to check for but if I was a betting man I would going for a faulty sender. Cheers Peter -------- Peter Armstrong Auckland, New Zealand DynAero MCR-4S (Do not shoot me :) ). 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