How do I install an oil cooler on my homebuilt?

Posted on December 7th, 2007 by

I have an O-235 Lycoming engine. The assembly case has not been drilled to accept an oil cooler. Continue Reading →

Which valve is safe to use?

Posted on November 23rd, 2007 by

QUESTION: I have a question on my IGO-540-A1A, an engine with a rated RPM of 3,400. When it comes time for an overhaul, S.I. 1037K calls for intake valve LW-12949. Continue Reading →

Prepare your plane for winter

Posted on November 9th, 2007 by

For those of us who reside in northern climates, it’s time for us to begin thinking about what we need to do to get our aircraft ready to put in the barn for the winter. Continue Reading →

Should I lean while taxiing?

Posted on October 19th, 2007 by

QUESTION: I have had instructors insist that I lean the engine while taxiing my O-320 Lycoming. Continue Reading →

Can you identify this engine?

Posted on October 5th, 2007 by

QUESTION: A friend has an O-320 in his hangar. I have only the following data, and am wondering how or where I can use these data to determine exactly which engine this is. Data plate says: O-320, eng #2689-27. The... Continue Reading →

Can I use a yellow tagged camshaft in my Wittman Tailwind?

Posted on September 21st, 2007 by

I have a Lycoming O-320-D2A that will be going into a Wittman Tailwind. The crankcase and crankshaft are yellow tagged. The camshaft is really pitted and will need to be replaced. I imagine the followers will need replacing also unless... Continue Reading →

What’s causing popping noises at low RPM?

Posted on September 7th, 2007 by

I have a high-wing homebuilt aircraft into which I have installed an IO-360-A1B 200-hp Lycoming salvaged from a Lake Amphiban, with 660 TT. My problem is that it makes loud popping noises at low RPM, such as when landing or... Continue Reading →

When should I achieve highest RPM?

Posted on August 24th, 2007 by

I own a 1962 Piper Colt with a O-235-C1B engine. My operator manual says that I should have 115 hp at 2800 RPM. At what point would I achieve highest RPM? On takeoff? Level flight at full throttle? Continue Reading →

How can TBO increase by 33%

Posted on July 20th, 2007 by

Cessna 182s have been burdened by a 1,500 hour TBO for many years. However, the O-470-U engine is now available with a 2,000 hour TBO. What possibly could they have done to the engine to extend the TBO by 33%? Continue Reading →

What’s the best oil for my engine? Our oil expert weighs in on this reader’s question

Posted on July 6th, 2007 by

I have a Lycoming AEIO-360 in my Pitts S1S. I have been running AeroShell 100W Plus for years. Some buddies I fly with have been using an Amsoil oil (I’m not sure the number). What is the best oil and... Continue Reading →