Bill/John(and everyone else who weighed in), I did have the FAA CD, and the original equip list showed engine serial #3527-6-12 in it when it left the line. Around 1953 engine serial #276-5-12 started showing up in the annual inspection forms that the IA's used to file with the Fed's every year. No mention of an engine swap & my log only cover 1966 to present. What is the -5? Series? Do I just have an early production case here? I have some photos, can't figure out how to attach to this...will forward off-group. Still looking for the legal justification to keep this engine on the plane.
Rick Eason --- In [email protected], William R. Bayne <ercog...@...> wrote: > > > Hi Rick, > > Your plane, serial number 3372, N2747H was completed 9/12/46. Have you > ordered the FAA CD for it? > > That should give you all information as to what engine was on your > aircraft originally and any subsequent changes documented by filed and > approved forms 337. > > I know that Project #571, Report #1 indicates an objective to compare > the effectiveness of the Lord J-2079-2 Conical Sandwich Engine Mounting > to the standard grommet type mounting by shake and flight test. It > contains drawing No. SC-2802 dated 11-8-45 (Lord Manufacturing Co., > Erie, PA). > > Tests were conducted using ERCO's NX2094H with the standard engine, > rubber grommets and mount as in present production and then with a > modified engine, (above) Lord mounts, and modified supporting structure > (engine mount). This ship was completed 8/1/46 and taken over "new" by > ERCO's Engineering Dept. > > So, while we can't specifically connect your plane with the Lord > mounts, it is known that ERCO had started working on such an > installation beginning just six weeks before your bird came off the > production line. Perhaps Continental and/or Lord would have more > information. > > Regards, > > William R. Bayne > .____|-(o)-|____. > (Copyright 2010) > > -- > > On Jan 28, 2010, at 23:04, rickeason2000 wrote: > > > OK guys, > > Got a good one for you. The 'C' Model that I have been restoring & > > assembling for the past two years was getting close. We were fitting > > the cowling on, and having a very difficult time making it work. The > > zero time engine that is on it, has been hanging there about 6 years, > > so we decided to change the mounts. Here is where the problem begins: > > I obtained a new set of the standard Continental mounts, we hoisted > > the engine & begin to replace them. To our surprise, what was in there > > was a set of larger Lycoming mounts! This assembly included a bolt > > spacer. I appear to have a case that nobody has seen before. The most > > current logbook (starting in 1966) lists the engine as a C-75-12, > > Serial #276-5-12. Data plate says the same thing. The case is slightly > > different than another one that I have w/ serial #4XXX. My case was > > built on 3/12/1946, and both halves have casting numbers one digit > > off. > > So, did someone filed modify this case somewhere in the past 60 > > years or do I have some kind of mutant? It appears the Lycoming mounts > > will work, I just can't find a legal basis for it. > > Unfortunately, if I can't come up with a Legally (FAA) acceptable > > solution I feel compelled to remove/replace this zero time engine and > > sell it to an EAA guy or for parts. > > > > I would love to hear options, > > > > Rick Eason >
