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Oil usage
Oil usage
20 May 2021 16:25 #1
by John Farrell
Compressions, oil pressure, all good at this time! Amazingly strong running C85 engine IMHO! Based on flying and owning five Bonanzas and one Debonair over twenty-five years. Thanks for the reply, Larry.
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19 May 2021 19:52 #2
by Larry Snyder
You’re in pretty good shape. I believe the Continental limit for C-85 oil consumption is one quart every 2.8 hours. At that limit you are at the “fill it with oil and check the gas” stage. Makes cross country trips a real pain!
My plane has 1400 on the bottom end and 1600 on the top and I get 10-12 hours per quart. Getting 8 isn’t bad.
As long as compressions, oil pressure, and oil consumption are good, you’re in good shape!
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19 May 2021 19:32 #3
by John Farrell
Have only owned this Ercoupe N94865 (1948 415E) for about 8 months. Using about one quart of oil in eight hours. C85 engine is past TBO. Bottom overhaul done about 1250 hours ago. All cylinders have been either replaced or O/H since the mid 90's and as late as 2011-15. What is maximum oil usage should these engines get before considering a top or major? No major leaks noticed noticed. Has an oil filter.
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Ercoupe/Forney Specific
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Oil usage
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