>From memory I believe the baffels were optional but recommended on a 75 to 85 conversion for a 415C (but they may be required for a D?)
My 415C came with the 85HP upgrade but no baffles. Oil temp got very near redline in the summer. I installed the baffles several years ago (if you think they are merely expensive - wait till you see how hard they are to install!) and also installed a El Reno oil filter. Now I have trouble getting my oil above 170F if the weather is below 60F (I use the blocking plate until temps are over 60). The baffles seem to really make a difference. You need to look through the Univair type certificate info On my copy of the type certificate for the 415C/CD under Engines and Accessories states "111. Baffle plate, Erco P/N 415-40252 (optional with all engines)" David Abrams [EMAIL PROTECTED] http://www.ercoupe.com ---------- From: rich[SMTP:[EMAIL PROTECTED] Sent: Wednesday, July 01, 1998 5:36 PM To: Coupers Subject: Baffles. I have a '46 415C converted to a 'D' with a C-75-12F converted to a C-85-12F. The aircraft has the skyport nose bowl installed and additionally has the optional oil cooler installed per memorandum 20. The aircraft has a McCauley 1CM90 (I left the specification at work so not sure of the propeller number but it is the McCauley listed as #4,5 or 6 of the specs. Univair specification A-787 for the 415D model, note 4.b, states that the C-85 engine can be installed with the McCauley propeller if it also has additional baffling installed that cools the oil sump, speciffically part no. 415-40486, 40485, 40487L, 40487R and 40488 and one baffle that I can't locate in the parts manual. Now the problem. My coupe does not have any of the baffling installed as noted above and required by the Specification and I can't seem to find anything that authorizes their removal. The previous owner when asked stated that the oil temperature was well within the green band even during a circumnavigation of the U.S. that took 3 weeks during the month of August. Questions: 1. Does the STC for the skyport nosebowl remove the baffling? 2. Does anyone operate with the oil sump baffling installed on their C-85? 3. If you do have the baffling, what are your oil temperatures during warm days and climbing to altitude? 4. Does anyone have a reference that removes the baffling for the oil tank? The replacement cost for the six pieces that makes up the baffling is in excess of $550.00 from Univair. If it turns out that it is really required does anyone have a set of used baffling for sale or for Loan so that I could use it as a pattern. I'm good at sheet metal work so it won't be much of a chore to make. Richard [EMAIL PROTECTED]
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