QUESTION: I’m thinking of purchasing a C150 with an 0-320 engine, serial number 4800-027. It may be a D2J. Do you have any knowledge of the history of this engine and its serviceability? Or, could you direct me to another source of information? Arthur Dodd Jacksonville, Fla. ANSWER: From the engine serial number you provided, […]
What causes engines to develop less-than-rated power?
QUESTION: I just read your article on the history of the 0-320-H2AD engine (What engines should I avoid, Dec. 24, 2004, issue). I have had three Skyhawks with the later engine (two 1977s and one 1979) and have had no problems with TBO — all went well past 2,000 hours. My question is about power. […]
Is a reground cam as good as a new one?
QUESTION: My Lycoming IO-360-B1E engine will be majored sometime early next year and I am trying to educate myself. The facility I plan to use for the overhaul says that a reground cam is just as good as a new one. Could you please explain how a cam is reground. I don’t understand how if […]
Worries about a warranty?
From time to time I receive letters regarding various questions about warranties. If you’re like most people, it’s very seldom we really read and understand a warranty on a product. Having been responsible for the warranty on Lycoming engines at one point during my career there, I can tell you that gives one a whole […]
Is it normal to lean the mixture for ground ops, takeoff?
QUESTION: I’m operating a C-172 with a Lycoming O-360 engine at an approximately sea level airport. Is it normal to have to lean the mixture for ground operations and takeoffs? I have to or the engine runs a bit rough. Perhaps the mixture settings on the carb are not adjusted correctly, although some say it […]
What led to camshaft damage?
QUESTION: Last year I bought a 1971 C172L model with a Lycoming O-320-E2D. When I bought the plane I did an annual at the same time and for the most part everything was fine. This year it was discovered that the camshaft had been damaged along with lobe wear on the No. 4 cylinder. I […]
Can you explain lifter bleed?
QUESTION: Can you explain the lifter bleed down check procedure in detail (or tell me where I can find it) for my IO-360-B1E on my 1967 Arrow? Wayne Whittington Blackwell, Okla. ANSWER: Wayne, I suggest you focus your attention on Lycoming Service Instruction 1011H. It will give you the general inspection requirements and checks for […]
Who held the original speed record?
QUESTION: Who did Lt. Russell Maughan take the air speed record from when he set the record in March 1923? Sue Hechinger Flower Mound, Texas ANSWER: Lt. Russell Maughan set his record in 1922, not 1923, when he won that year’s Pulitzer Race on Oct. 14 at 205.856 mph in a Curtiss R-6, beating a […]
Overhauled engine means relearning how it operates
QUESTION: First, let me say thanks for your excellent column. It’s always one of the first things I flip to when GANews arrives. In my 1947 PA-12 (I’m new to the plane, purchased after complete restoration), I have an O290-D2B with about 18 hours on a new limits field overhaul, including new exhaust valves, seats, […]