deesaysy Posted October 8, 2021 Share Posted October 8, 2021 Hi guys, Presently my oil temp is climbing to 200 degrees. Do I need a oil cooler for my 135Hp Franklin engine. You guys with O-235 engines, do you need oil coolers. How about you folks using O-320 Quote Link to comment Share on other sites More sharing options...
Marc Zeitlin Posted October 8, 2021 Share Posted October 8, 2021 52 minutes ago, deesaysy said: Presently my oil temp is climbing to 200 degrees. Do I need a oil cooler for my 135Hp Franklin engine. The first place to look for information on engine limits is in the engine's operators manual, not on some random online forum. The MFG's info, available here: http://www.franklinengines.com/4a.cfm says that the maximum oil temp is 234F. You don't say what engine you have, but I'm assuming the 4 cylinder Franklin, and I'd be surprised if the oil temp limits were different. In any case, 200 < 234, so no - you don't need an oil cooler if the temps stay below 220F or so. On Long-EZ's, everyone uses an oil cooler (and needs them). On Variezes with O-200's, some have coolers, some don't. Don't know what the few folks with O-235's and O-320's on VE's do - I'd assume that like on the Long-EZ's, they'd need a cooler. Quote Marc J. Zeitlin Burnside Aerospace marc_zeitlin@alum.mit.edu www.cozybuilders.org copyright © 2024 Link to comment Share on other sites More sharing options...
deesaysy Posted October 8, 2021 Author Share Posted October 8, 2021 I have a franklin sport. The new 4 cylinder 135Hp engine to replace the O-200 and the 65Hp engines Thanks Mark Quote Link to comment Share on other sites More sharing options...
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