---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Sat 11/24/07: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 0. 12:35 AM - Comments (Matt Dralle) 1. 05:06 AM - Re: no oil indicated oil pressure (Mozam) 2. 05:48 AM - Re: Re: no oil indicated oil pressure (A. Dennis Savarese) ________________________________ Message 0 _____________________________________ Time: 12:35:20 AM PST US From: Matt Dralle Subject: Yak-List: Comments Dear Listers, Below are a few more of the nice comments Listers have been making along with their Contributions in support of the Lists this year. Please make your Contribution today to support the continued operation and upgrade of these services. Remember, there is _no advertising budget_ to keep these Lists funded. It is solely through your generosity that they continue. Please make a Contribution: http://www.matronics.com/contribution Thank you! Matt Dralle Matronics Email List and Forum Administrator ------------------------------What Listers Are Saying------------------------------ The list has been invaluable in the building of my Zenith CH701. George R Thanks for keeping the lists a non-commercial venue for us to gather and share knowledge. Neal G What a fantastic resource! Ralph C It's a pretty cheep troubleshooting tool with and unlimited resource of personal knowledge. Bruce G A full house of Info & Ideas... Ellery B I really enjoy the Piet list. Steven D The Lists are an indispensable resource for those of us building OBAM aircraft. Bret S ..a great service. Frank D ..all in all it is a great resource if you ask specific questions. Richard S Your list has really helped me in my first build. Michael W Always a pleasure to support this great resource... Richard W I enjoy the lists very much, they are very beneficial. Bob L Great place to chat with other builders and Flyers. Ellery B Your lists are a great service to builders and owners! Richard D A real good place for someone that is starting to get interested into flying without investing any money at first. Ellery B The list has been an great help to my building process. David B I'm close to finishing my Zenith 601 thanks to you and the Zenith List. Jeff D ________________________________ Message 1 _____________________________________ Time: 05:06:54 AM PST US Subject: Yak-List: Re: no oil indicated oil pressure From: "Mozam" Hi Steve, I have seen this happen when the oil was very cold and also after an oil change as you mentioned. If cold isn't the issue, you may want to try to pouring a couple qt of oil down into the engine to help "prime" the pump. There is a cap (about 2" diameter) plumbed into the brown oil vent line on the top of the engine in front of the generator (right behind the #1 cylinder). Pour the oil in there and see if the pressure comes up. I couldn't get oil pressure once after an oil change (I'd let the oil drain for a week) and Cliff Coy suggested this to me. Worked perfect. Cheers, Steve Dalton Read this topic online here: http://forums.matronics.com/viewtopic.php?p=148233#148233 ________________________________ Message 2 _____________________________________ Time: 05:48:06 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: Re: no oil indicated oil pressure Head pressure is an important issue. For example, when installing a fresh engine it usually requires about 14 liters of oil on the dip stick to prime the oil pump. I also agree with Steve Dalton. You want to make sure the oil is warm and pouring a couple of liters into the engine could help the situation. After sitting for 3 weeks, it may just be a cavitation issue. Before filling the oil tank to say, 14 liters, be sure your sump in drained because you may have 4-5 liters in the sump that has drained down. That 4-5 liters could be a problem with 14 liters reading on the dip stick. Lastly, the pressure relief spring on the oil pressure relief valve in the oil pump may have failed. Dennis ----- Original Message ----- From: "Mozam" Sent: Saturday, November 24, 2007 7:06 AM Subject: Yak-List: Re: no oil indicated oil pressure > > Hi Steve, > > I have seen this happen when the oil was very cold and also after an oil > change as you mentioned. > > If cold isn't the issue, you may want to try to pouring a couple qt of oil > down into the engine to help "prime" the pump. There is a cap (about 2" > diameter) plumbed into the brown oil vent line on the top of the engine in > front of the generator (right behind the #1 cylinder). Pour the oil in > there and see if the pressure comes up. > > I couldn't get oil pressure once after an oil change (I'd let the oil > drain for a week) and Cliff Coy suggested this to me. Worked perfect. > > Cheers, > Steve Dalton > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=148233#148233 > > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message yak-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Yak-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/yak-list Browse Digests http://www.matronics.com/digest/yak-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.