J3 Cub Forum > Cub Discussions > Powerplants > Minimum oil level on a continental A65

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Old 07-10-2017, 02:09 AM   #31
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How do I handle that? Easy - I do not do that stuff.


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Old 07-10-2017, 02:50 AM   #32
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That''s also my point. J3''s are more than just trainers. They are a wonderful, highly functional little work plane.


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Old 07-10-2017, 04:17 AM   #33
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Glad I helped you make your point.
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Old 07-23-2017, 02:38 PM   #34
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Hi all, I had my 2 year flight review yesterday, and while checking the oil in my cub, my instructor asked me what the minimum pile level was for the Continental A65. I replied that I thought it was 2.5 qts, but he believes it was 3 qts. I checked the tcds, and Harry Fenton's small Continental website, as well as searched here. So, does anyone know where to find this info? Thanks in advance for your knowledge!
Tell him you keep 4 quarts, in the sump at all times ,thats the best answer, in my opion, why would you not carry, extra extra oil in you cub, its to expensive to replace the engine ,by letting the oil run to low, ive owned a cub for 22 years, and always carried extra oil in the baggage compartment, oil cost less than a Engine overhaule.

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Old 07-23-2017, 02:48 PM   #35
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Minimum oil level isn't about cost. It is about the mess when it is blowing the 4th quart overboard constantly and making a mess.
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Old 07-23-2017, 03:45 PM   #36
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When I first got mine, I had been told that I had a 5 quart kidney on the C-90 and that the 90 required more oil than a 65. So, going by the maxim that "Oil's cheap, engines aren't", I put in 5 quarts. Big mistake. Before I knew what was happening, I had a quart and a half all over the bottom of the airplane and the gear and the struts and just about everyplace else. I even lubed the elevator hinges! Several hours of work later, I had a clean airplane again.
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Old 07-24-2017, 12:59 AM   #37
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Minimum oil level isn't about cost. It is about the mess when it is blowing the 4th quart overboard constantly and making a mess.
Jim, i must be lucky, my PA11 has a Cont 90 HP ,and for 22 years, ive always had full oil sump ,and no oil mess, except when she eat up , a ex valve ,and it went threw the piston, then i had oil down the right side of the fuselage,i wasnt talking about cost, have a great day sir, like i said in a former site ,you are well respected Sir ,have a great day, Sir.

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Old 07-24-2017, 01:39 AM   #38
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I appreciate the kinds words. I've simply been lucky to grow up with Cubs around. I guess I had to learn something by osmosis.

You are indeed fortunate yours does not. I sure wish mine didn't. The C-85 (1100 SMOH) in my Cub and the O-300 (200 SMOH) in my former Swift with brand new Titan cylinders, new pistons and rings, both blow the 4th and 8th quart respectively. Rick's O-200 does as well. Most small Continentals I've flown and dealt with do it.
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Old 07-24-2017, 06:05 AM   #39
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And large Continentals. And AEIO 360 Lycs.

Ask the 180 Cessna guys what happens when they put 12 quarts in.

I run my Decathlon at six exactly for inverted flight, and will go down to five for all positive G flight. Any more than six seems to disappear out the breather or somewhere.


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