Tips to install an oil cooler

Posted on March 24th, 2011 by

Paul McBride, an expert on engines, retired after almost 40 years with Lycoming. Q: We have a Citabria 7ECA with a Lycoming O-235-C1 engine. We live in East Texas, where summers are very long and very hot. Even with an... Continue Reading →

Ask Paul: What’s up with my oil temperature?

Posted on February 9th, 2011 by

Paul McBride, an expert on engines, retired after almost 40 years with Lycoming. Q: I’ve been having trouble with my Lycoming O-360-AIA engine for some time. The oil temperature is running about 200° on a cool day. The head temperature... Continue Reading →

Ask Paul: Why are holes larger than dowel pins?

Posted on January 25th, 2011 by

Paul McBride, an expert on engines, retired after almost 40 years with Lycoming. Q: I recently saw your article about Narrow Deck vs. Wide Deck and believe you are just the person to ask this question. A fellow AMT has... Continue Reading →

Why mineral oil for break-in?

Posted on December 13th, 2010 by

Paul McBride, an expert on engines, retired after almost 40 years with Lycoming. Q: I’ve seen this in Lycoming literature — “Keep in mind that all turbocharged Lycoming engines must be broken-in on ashless dispersant oil only” — but why... Continue Reading →

Is 172 with H2AD engine a good buy?

Posted on December 6th, 2010 by

Paul McBride, an expert on engines, retired after almost 40 years with Lycoming. Q: Hi, I am a Mexican looking for my first plane. I found a 1980 Cessna 172 with an H2AD engine that has just 100 hours since... Continue Reading →

A puzzling compression problem

Posted on October 20th, 2010 by

Paul McBride, an expert on engines, retired after almost 40 years with Lycoming. Q: My engine, which now has 300 hours on it, is an O-290-D2B which had a new-limits field overhaul. It has settled-in as a nice smooth-running, economical... Continue Reading →

Is it possible to convert my engine?

Posted on September 28th, 2010 by

Paul McBride, an expert on engines, retired after almost 40 years with Lycoming. Q: I have a Lycoming O-360-A1F6D that was originally installed in a Cessna Cardinal. This engine has since been used in an Van’s RV-6 and I will... Continue Reading →

Ask Paul: Are these spark plugs approved for my plane?

Posted on August 8th, 2010 by

Q: Could you please help my pretty blonde wife and myself with our spark plug problem? We are desperate! Our mechanic is going to put the new fine wire plugs we just bought into our 1976 Cessna Cardinal RG, but... Continue Reading →

Ask Paul: Can this be correct?

Posted on July 11th, 2010 by

Q: My Tri-Pacer has an O-320 with a narrow deck (A) engine. It has SL32000N-A1 Millennium cylinders, which are are installed with no plates and splined nuts. Can this be correct? I have no wide deck cylinders to compare them... Continue Reading →

Is new technology worth the investment?

Posted on July 4th, 2010 by

Q: I am about to change my Alfa Romeo boxer engine to a Lycoming O-360A1F1 on my experimental Glastar aircraft. I read your answer recently to a question if LASAR is really useful (Will my engine benefit from new technology?... Continue Reading →