oil not hot enough D1A

[drmax]

With temps at 44, I got my oil temp up to 205 at 2350. This will work in the cold temp, but will either have to 1/2 plate it in the summer, or go with the shutter. I'm happy now.

[videobobk]

Even though I am down here where it is much warmer (50 miles south of Indy,) I have routinely taped over the front of my O-320/160hp 9A oil cooler every winter, just to keep temps within reason. I use the adhesive aluminum stuff Van's sells for cowl heat reflector. I have threatened to make an adjustable shutter. I would put the control inside the oil door, not through the firewall.

When you consider how much surface area the engine has up there on top, and that the cooling air goes over it quickly, I think it is amazing we can get the temps up even with the cooler closed off. Besides, I think the 320 is designed to use all it's fuel for horsepower, not to heat the oil

Bob

[drmax]

Originally Posted by videobobk

Even though I am down here where it is much warmer (50 miles south of Indy,) I have routinely taped over the front of my O-320/160hp 9A oil cooler every winter, just to keep temps within reason. I use the adhesive aluminum stuff Van's sells for cowl heat reflector. I have threatened to make an adjustable shutter. I would put the control inside the oil door, not through the firewall.

When you consider how much surface area the engine has up there on top, and that the cooling air goes over it quickly, I think it is amazing we can get the temps up even with the cooler closed off. Besides, I think the 320 is designed to use all it's fuel for horsepower, not to heat the oil

Bob

Hello Captain Bob. I'm the guy from Martinsville that stopped in last Summer with my family (way back from TN trip) to look at your plane. I did end up with a 9A after all! Nice machine. I have the same HP eng as you and have one tank using Mogas, and the other mixed with mogas and 100LL.
Unsure if you've been doing this, but there is "no" difference in performance and she purs like a kitten. Take care....

[drmax]

I'm happy with my oil temp now at 190 ish. I've noticed now my cht's are also running cooler, as all that air is not rushing through the oil cooler. What i am seeing, though is a couple cht's running at mid to upr 200. Someone is gonna tell me this is too cool, but I'm not about to block off ram air. I don't have an eng. manual. What is the lower limits, if any? I will install the oil cooler shutter assy., in the future. With this I may be able to tweak this temp. Thx, DM

[drmax]

Originally Posted by drmax

I'm happy with my oil temp now at 190 ish. I've noticed now my cht's are also running cooler, as all that air is not rushing through the oil cooler. What i am seeing, though is a couple cht's running at mid to upr 200. Someone is gonna tell me this is too cool, but I'm not about to block off ram air. I don't have an eng. manual. What is the lower limits, if any? I will install the oil cooler shutter assy., in the future. With this I may be able to tweak this temp. Thx, DM

I wanted to c/p this outta the online lyc man...so I'm happy with my temps...!
"Minimum in-flight CHT should be 150˚ F (65˚ C), and maximum in most direct-drive normally aspirated Lycoming engines is
500˚ F (260˚ C). Some of our higher-powered more complex engines have a maximum limit of 475˚ F (245˚ C). Although these are minimum and maximum limits, the pilot should operate his or her engine at more reasonable temperatures in order to achieve the expected overhaul life of the power plant. In our many years of building engines, the engines have benefited during continuous operation by keeping CHT below 400˚ F in order to achieve best life and wear of the power plant. In general, it would be normal during all-year operations, in climb and cruise to see head temperatures in the range of 350˚ F to 435˚ F."

[aussieflyer1]

I have 6hrs on my new 0360 A1A and my oil cooler is mounted on the firewall with a naca scoop on my cowl right side. Because I'm running the engine in at 2400rpm 21" manifold fix prop, I have oil at 80-82 degree PSI and 160-162 degree oil temp in south florida. I maybe wrong, but thought this was good for now seeing that when it gets hot in the summer here, I have room for a hotter running engine.

[drmax]

Hello. I viewed a pic of the "shutter" off of Vans. It appears that it is sandwiched in place, as appears there are no mount holes. Does someone have the specific dimensions? A friend is making a couple of these.
Thx for any info. DM