---------------------------------------------------------- Stratus-List Digest Archive --- Total Messages Posted Thu 04/22/04: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:47 AM - Re: Oil Burn (gary) 2. 04:58 AM - intake/mixture (gary) 3. 07:52 AM - Re: Oil Burn (HINDE,FRANK (HP-Corvallis,ex1)) 4. 08:27 AM - Re: Oil Burn (Bill Cardell) 5. 08:36 AM - Re: Oil Burn (HINDE,FRANK (HP-Corvallis,ex1)) ________________________________ Message 1 _____________________________________ Time: 04:47:33 AM PST US From: "gary" Subject: Re: Stratus-List: Oil Burn --> Stratus-List message posted by: "gary" Bill, How much were you burning before? I'm guessing this is a sudden jump? I'm no engine guy, but I'd be worried. I have no idea why it would burn that much but I'll ask around. Maybe ask on the airsoob list too. I just added oil for the first time the other day and I was surprised to see the level dropped because I haven't really seen it move during the 45 hours I have on it now. I think I changed the oil around 20 hours. So, I added less than 1/2 qt in about 20 hours but it's hard to say. I messed around with my oil temp sender and ended up draining/replacing some about 10 hours ago. I'll have to check my records and start keeping track. My exhaust pipes are really sooty too as is the belly of the plane. Keep us posted, Gary ----- Original Message ----- From: "Bill Morelli" Subject: Stratus-List: Oil Burn > --> Stratus-List message posted by: "Bill Morelli" > > Guys, > > I'm burning about 1 quart of oil every 6 to 7 hours of flying!!! > > Using castrol 20w-50 oil > > My compression is the same as it was when the engine was new. I perform a > differential and regular compression check. > > Plugs all have a light tan color and never wet. > > No oil leaks anywhere. I did have seeping last year at both front and rear > seals but I replaced both seals on my annual and there is now no leakage. > > I do have soot inside the exhaust stack that readily comes off on my > finger. Bottom of fuselage gets a light coat of soot over time but I have > always noticed that since day one. > > Don't mind putting oil in every 7 hours but just would like to know where > it is going. > > Stratus now has 315.7 hours on it. > > Any thoughts???? > > Regards, > Bill (N812BM - HDS - Tri - Stratus (RAM Heads) - Vermont - 315.7 flight > hrs. - 434 landings, (1 ON ICE!!) > web site -> http://homepages.together.net/~billvt/ > > | > ---=( )=--- > 0 0 > > ________________________________ Message 2 _____________________________________ Time: 04:58:30 AM PST US From: "gary" Subject: Stratus-List: intake/mixture --> Stratus-List message posted by: "gary" > The plug from cylinder 1 is nice and tan, but the plug from cylinder 3 is wet > and sooty. Engine runs fine, but this phenomina is puzzling! Dick, I found that too on both sides. I think either Kelly or Bill here (sorry, forgot who) provided some insight. The theory is that the slanted intake provides more fuel to the front cylinders and less to the rear because it has a hard time making the sharper turn. At least that's my interpretation. Ron at RAM said that's a problem with the Stratus intake, it has to be set up rich so that the rear cylinders won't run too lean. Gary ________________________________ Message 3 _____________________________________ Time: 07:52:14 AM PST US From: "HINDE,FRANK (HP-Corvallis,ex1)" Subject: RE: Stratus-List: Oil Burn --> Stratus-List message posted by: "HINDE,FRANK (HP-Corvallis,ex1)" Hey Bill, If this has been doing this from day one I would bet that your cylinders are out of round. Ron at Ram performance tells me that unless you bore the engine with the deck plate bolted down, the cyliners will shift as you bolt up the heads. Almost nobody bores engines this way. Not much you can do about it...I burn oil too but not quite that much. Frank -----Original Message----- From: owner-stratus-list-server@matronics.com [mailto:owner-stratus-list-server@matronics.com] On Behalf Of Bill Morelli Subject: Stratus-List: Oil Burn --> Stratus-List message posted by: "Bill Morelli" Guys, I'm burning about 1 quart of oil every 6 to 7 hours of flying!!! Using castrol 20w-50 oil My compression is the same as it was when the engine was new. I perform a differential and regular compression check. Plugs all have a light tan color and never wet. No oil leaks anywhere. I did have seeping last year at both front and rear seals but I replaced both seals on my annual and there is now no leakage. I do have soot inside the exhaust stack that readily comes off on my finger. Bottom of fuselage gets a light coat of soot over time but I have always noticed that since day one. Don't mind putting oil in every 7 hours but just would like to know where it is going. Stratus now has 315.7 hours on it. Any thoughts???? Regards, Bill (N812BM - HDS - Tri - Stratus (RAM Heads) - Vermont - 315.7 flight hrs. - 434 landings, (1 ON ICE!!) web site -> http://homepages.together.net/~billvt/ | ---=( )=--- 0 0 advertising on the Matronics Forums. ________________________________ Message 4 _____________________________________ Time: 08:27:09 AM PST US From: Bill Cardell Subject: RE: Stratus-List: Oil Burn --> Stratus-List message posted by: Bill Cardell Possibly too rich and washing the cylinder walls? -----Original Message----- From: Bill Morelli [mailto:billvt@together.net] Subject: Stratus-List: Oil Burn --> Stratus-List message posted by: "Bill Morelli" Guys, I'm burning about 1 quart of oil every 6 to 7 hours of flying!!! U ________________________________ Message 5 _____________________________________ Time: 08:36:13 AM PST US From: "HINDE,FRANK (HP-Corvallis,ex1)" Subject: RE: Stratus-List: Oil Burn --> Stratus-List message posted by: "HINDE,FRANK (HP-Corvallis,ex1)" For an engine to use oil only one of three things can be happening... 1) It leaks 2) Poor oil/air seperation and it loses oil thru the crankcase vent tube....EA 81's do this a little but its barely noticable 3)getting between the valves stem and guide and burnt in the combustion chamber 4) Its getting past the rings and burning in the combustion chamber. 5) Leaking head gasket that is sucking the oil into the combustion chamber....Never heard of that happening on one of these motors. Root causes for item 3 are possibly.... Broken/missing piston ring, hole in the piston, damaged bore/piston or cylinder out of round Frank -----Original Message----- From: owner-stratus-list-server@matronics.com [mailto:owner-stratus-list-server@matronics.com] On Behalf Of Bill Cardell Subject: RE: Stratus-List: Oil Burn --> Stratus-List message posted by: Bill Cardell Possibly too rich and washing the cylinder walls? -----Original Message----- From: Bill Morelli [mailto:billvt@together.net] Subject: Stratus-List: Oil Burn --> Stratus-List message posted by: "Bill Morelli" Guys, I'm burning about 1 quart of oil every 6 to 7 hours of flying!!! U advertising on the Matronics Forums.