---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Mon 06/30/08: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:11 AM - Re: Re: High Oil Pressure (David Joyce) 2. 04:30 AM - Re: High Oil Pressure (Malcolm Ferguson) 3. 04:41 AM - Re: Low Oil Pressure....High Oil Pressure (Tommy Walker) 4. 07:02 AM - Re: High Oil Pressure (Roger Lee) ________________________________ Message 1 _____________________________________ Time: 02:11:34 AM PST US From: "David Joyce" Subject: Re: RotaxEngines-List: Re: High Oil Pressure Roger, Another alternative is that it has a poor connection. If a wire breaks or becomes disconnected the default reading is very high, as I discovered once just after take off in the middle of France. Reconnecting it sorted it. Regards, David Joyce, G-XSDJ ----- Original Message ----- From: "Roger Lee" Sent: Monday, June 30, 2008 2:53 AM Subject: RotaxEngines-List: Re: High Oil Pressure > > Hi Guys, > > I would not think the oil pressure is really at 99psi. You need to check > this against a mechanical gage which I think will show you your pressure > is normal. My first thought is the oil pressure sensor wire is too close > to an energy producing wire. Move your oil pressure sender wire away from > all energy producing wires. > > -------- > 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=190483#190483 > > > ________________________________ Message 2 _____________________________________ Time: 04:30:08 AM PST US From: "Malcolm Ferguson" Subject: RotaxEngines-List: Re: High Oil Pressure Has happened to me(wildly varying oil pressure). Replaced the sender unit but no difference. Finally tracked it down to the wire fractured at the connector to the sender unit. The tefzel outer was still intact and gave no indication to the broken wire. Finally found it by moving the sender wire with the engine running. The wire was secured better re-crimped, and the original sender has now done 400 hrs. Rotax mechanic here suggested planes with dynamically balanced props seem to suffer less of these types of problems. Others experience maybe quite different. Malcolm Ferguson Esqual 912S ________________________________ Message 3 _____________________________________ Time: 04:41:37 AM PST US From: "Tommy Walker" Subject: Re: RotaxEngines-List: Low Oil Pressure....High Oil Pressure Thanks folks, I got a mechanical gauge and all the plumbing. I'm going to hook it up this week and compare pressure readings. Thanks again, Tommy Walker in Alabama N8701 Do Not Archive ________________________________ Message 4 _____________________________________ Time: 07:02:56 AM PST US Subject: RotaxEngines-List: Re: High Oil Pressure From: "Roger Lee" Hi All, Wires and not the gages are typically notorious for false readings on gages. This is the first place I always look along with the mechanical gage. Ground's and power supply's should be the first thing checked. It is usually the easiest and cheapest. Note* I will have to say sometimes finding a bad wire can be like looking for a ghost. The partial ground that I stated above took me 4 hours to find because the test meter said there was a ground. Now I have a few simple quick test. I will bypass the gage ground or power supply and use a jumper wire for a quick and dirty test. The mechanical gage setup is so cheap and easy to make everyone should have one in their tools and diagnostic equipment. Let us know what you find Tommy. The more experience we all post the easier it is for the next guy. -------- 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=190543#190543 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rotaxengines-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RotaxEngines-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/rotaxengines-list Browse Digests http://www.matronics.com/digest/rotaxengines-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.