---------------------------------------------------------- Engines-List Digest Archive --- Total Messages Posted Mon 05/12/03: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:40 AM - Lycoming models (Gary Casey) 2. 07:29 AM - Re: Lycoming models (Konrad Werner) ________________________________ Message 1 _____________________________________ Time: 06:40:30 AM PST US From: "Gary Casey" Subject: Engines-List: Lycoming models --> Engines-List message posted by: "Gary Casey" Does anyone out there know how to identify a "narrow deck" Lycoming 540 compared to the "wide deck" engine? I understand there is a difference in either the serial number or model number. Gary Casey ES, getting ready for a Lycoming parallel-valve engine ________________________________ Message 2 _____________________________________ Time: 07:29:30 AM PST US From: "Konrad Werner" Subject: Re: Engines-List: Lycoming models --> Engines-List message posted by: "Konrad Werner" Dear Gary, (On the O-360's) a Narrowdeck engine uses holddown plates underneath the nuts on the cylinder base. A Widedeck has a fatter base itself and therefore doesn't need these beef-up plates. I would assume the same to be true in the 540 series. But then, I am not 100% sure. Good Luck to you, Konrad > Does anyone out there know how to identify a "narrow deck" Lycoming 540 > compared to the "wide deck" engine? I understand there is a difference in > either the serial number or model number. > > Gary Casey > ES, getting ready for a Lycoming parallel-valve engine > >