dzeleski Posted April 24, 2020 Report Posted April 24, 2020 Hopefully a simple question. While doing an oil change I figured I would get the oil sump heaters bonded to the engine. It looks like the instructions for the IO-360 dont match my A3B6D. I took two photos on where I though would be a decent place to mount them, which is behind the alternator on the front of the engine. I figured I would ask what others have done for the same engine, or if this location wont work that well. Quote
Andy95W Posted April 24, 2020 Report Posted April 24, 2020 Ideally, you'd want the oil sump heaters to be mounted on the underside of the sump, to better transfer heat upward through the oil. 1 Quote
David Lloyd Posted April 24, 2020 Report Posted April 24, 2020 It is not important to have the pad on the underside of that sump as it is open to the servo and intake pipes. I put a pad there and the engine would be heated overnight to 75 degrees on a 20 degree morning. The engine oil is contained in the space above the intake system, where you have the red outline. As long as the pad is firmly and completely attached, it will work great. I usually stuff a blanket in the cowl inlets to help hold the heat inside the cowling. Made 5-10 degree difference. 1 Quote
dzeleski Posted April 24, 2020 Author Report Posted April 24, 2020 13 minutes ago, Andy95W said: Ideally, you'd want the oil sump heaters to be mounted on the underside of the sump, to better transfer heat upward through the oil. Agree but there doesnt appear to be enough room underneath the sides of the sump that stick out. I could mount it under where the intake is but Im thats too far away from the actual sump itself. Just now, David Lloyd said: It is not important to have the pad on the underside of that sump as it is open to the servo and intake pipes. I put a pad there and the engine would be heated overnight to 75 degrees on a 20 degree morning. The engine oil is contained in the space above the intake system, where you have the red outline. As long as the pad is firmly and completely attached, it will work great. I usually stuff a blanket in the cowl inlets to help hold the heat inside the cowling. Made 5-10 degree difference. So basically where the sump bumps out on the sides if you draw a line across through the intake system thats roughly where the oil sits? If thats the case I think this is probably the best location for them as they dont seem to both fit anywhere else. I can get one closer or on to the bump but not both. 1 Quote
David Lloyd Posted April 24, 2020 Report Posted April 24, 2020 Yep. Yep. Pad heats the case, case heats the oil. The 75 degree temperature I mentioned was the CHT measured by a JPI 700. Cylinders might differ a degree or two. Oil temp would be right at the same. Seemed like every bit of the engine was heated. 1 Quote
dzeleski Posted April 24, 2020 Author Report Posted April 24, 2020 Awesome, thank you very much! Off to the hangar Quote
carusoam Posted April 25, 2020 Report Posted April 25, 2020 The way heat is transferred through aluminum... it moves far and fast... Ideally, it would be best on the bottom surface where the oil always comes to rest... Like air... warm oil rises... cold oil falls downwards... given enough time... the aluminum piece is going to be relatively uniform in temperature... Given a lot of time, the whole engine gets warmed... If you need less time or more heat... second pads are available and cylinder heaters as well.... PP thoughts only, not a mechanic... Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.