---------------------------------------------------------- Rocket-List Digest Archive --- Total Messages Posted Tue 10/12/04: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:35 AM - Re: Re: Crazy Horse (Bill and Janet Asbell) 2. 07:19 AM - oil pressure (Frazier, Vincent A) 3. 08:09 AM - Re: oil pressure (923te) 4. 08:01 PM - Re: Crazy Horse Flies! (FlyinJon@aol.com) ________________________________ Message 1 _____________________________________ Time: 05:35:04 AM PST US From: "Bill and Janet Asbell" Subject: Re: Rocket-List: RE: Crazy Horse --> Rocket-List message posted by: "Bill and Janet Asbell" Vince -- I AGREE 100% you will see the oil temp drop about 20 d and the press increase as Billy sez.Mineral oil is the ONLY thing for break-in.I would highly recomend AERO-SHELL 80 for our climate now.Let engine warm up till ya have at least 100F showing on the oil temp,then do your engine run-up,less than that you chance you stand a good chance of galling the cam. I think Lyc recomends 140 on the oil temp fer T.O. to prevent this.If ya have any ?????? ya got my ph # ,Bubba Bill helper #32 ----- Original Message ----- From: Subject: Re: Rocket-List: RE: Crazy Horse > --> Rocket-List message posted by: Jones15183@aol.com > > Vince, I think that you might see a 20 psi increase in oil pressure by using > a straight grade mineral oil, such as Aeroshell w-100 ( 50 wt. ) or W-80 which > is 40 wt oil. Don't know what your climate is going to be for the winter but > I would'nt recommend a multi visc oil for break in. Didn't know they made a > multi visc. in mineral oil.?? I think 50 PSI is too low for cruise conditions. > I'll bet your idle oil pressure ois also very low. billy 026 > > ________________________________ Message 2 _____________________________________ Time: 07:19:56 AM PST US Subject: Rocket-List: oil pressure From: "Frazier, Vincent A" --> Rocket-List message posted by: "Frazier, Vincent A" -----Original Message----- Vince, I think that you might see a 20 psi increase in oil pressure by using a straight grade mineral oil, such as Aeroshell w-100 ( 50 wt. ) or W-80 which is 40 wt oil. Don't know what your climate is going to be for the winter but I would'nt recommend a multi visc oil for break in. Didn't know they made a multi visc. in mineral oil.?? I think 50 PSI is too low for cruise conditions. I'll bet your idle oil pressure ois also very low. billy 026 Billy and others, Thanks for the advice and comments. I think I've got a handle on it now. I had checked the guage against a known guage and even checked the ground connection at the sender. No problems there. The Sacramento Sky Ranch website and the Lycoming tech rep tell me that Lyc. makes 4 different pressure relief springs. Different lengths and wire diameters for CS or fixed pitch applications. Lyc. tells me that we CS 540's need the white one, p/n LW 11713. It will be here today. Lyc says that adding washers will help, but it's better to simply get the proper spring. I'll let you know how it works out. It would be nice if Lyc. could put more useful info like this in their OH manuals!!! There isn't one freaking word in the OH manual about how to set the oil pressure. The parts manual lists the 4 different springs.... but it also is silent on how to determine which one to use. I guess you're just supposed to know it. WTF? Well, at least Lyc. has a tech support number, 1-800-258-3279. Thanks for the info! I think I'm on to it now. I'm also looking for some Aeroshell straight wt mineral oil to replace the other. Vince ________________________________ Message 3 _____________________________________ Time: 08:09:26 AM PST US From: "923te" <923te@cox.net> Subject: Re: Rocket-List: oil pressure --> Rocket-List message posted by: "923te" <923te@cox.net> Hi Vince, Looks like you have probably found the source of your low oil psi. Good news. I have my ECI "Break-In Instructions" manual before me and wanted to give you all a quote from it concerning break in oils: "Phillips SAE 20W-50 multiviscosity oil provides quick lubrication for improved start-up with the SAE 20W low temperature viscosity. All multi grade oils lubricate three times faster than straight weight, yet its full bodied SAE 50 viscosity will completley protect the engine at high temperatures and operational loads. The ashless dispersant (AD) in this oil keeps your engine's lubrication system free from oil related contaminants. The dispersant additive further enhances the system by suspending contaminants and operational wear metals in solution rather than allowing them to settle to the bottom of your crankcase forming harmful engine sludge. Finally this 100% mineral product will enhance the mating of all the parts invovled in systems requiring operational wear-in." I purchased this oil for breaking in my engine. Your Fellow Aviation Enthhusiast, Ned ----- Original Message ----- From: "Frazier, Vincent A" Subject: Rocket-List: oil pressure > --> Rocket-List message posted by: "Frazier, Vincent A" > > > -----Original Message----- > Vince, I think that you might see a 20 psi increase in oil pressure by > using a straight grade mineral oil, such as Aeroshell w-100 ( 50 wt. ) > or W-80 which > > is 40 wt oil. Don't know what your climate is going to be for the winter > but I would'nt recommend a multi visc oil for break in. Didn't know they > made a multi visc. in mineral oil.?? I think 50 PSI is too low for > cruise conditions. > > I'll bet your idle oil pressure ois also very low. billy 026 > > > Billy and others, > > Thanks for the advice and comments. I think I've got a handle on it > now. > > I had checked the guage against a known guage and even checked the > ground connection at the sender. No problems there. > > The Sacramento Sky Ranch website and the Lycoming tech rep tell me that > Lyc. makes 4 different pressure relief springs. Different lengths and > wire diameters for CS or fixed pitch applications. > > Lyc. tells me that we CS 540's need the white one, p/n LW 11713. It > will be here today. Lyc says that adding washers will help, but it's > better to simply get the proper spring. > > I'll let you know how it works out. > > It would be nice if Lyc. could put more useful info like this in their > OH manuals!!! There isn't one freaking word in the OH manual about how > to set the oil pressure. The parts manual lists the 4 different > springs.... but it also is silent on how to determine which one to use. > > I guess you're just supposed to know it. WTF? Well, at least Lyc. has > a tech support number, 1-800-258-3279. > > Thanks for the info! I think I'm on to it now. I'm also looking for > some Aeroshell straight wt mineral oil to replace the other. > > Vince > > ________________________________ Message 4 _____________________________________ Time: 08:01:50 PM PST US From: FlyinJon@aol.com Subject: Re: Rocket-List: Crazy Horse Flies! --> Rocket-List message posted by: FlyinJon@aol.com Cogratulations Vince, Mine is ready SN#129, The FAA will be here Wed the 20th, so first flight soon after. John Lauer