Cessna oil cooler

landon18

Pre-Flight
Joined
Feb 25, 2023
Messages
48
Display Name

Display name:
Landon Scarbrough
Is the return line out of the oil cooler supposed to have a 90 or a t on it?
 
It originally had a tee on it. The lower end of the tee had a cap. When the airplane left the factory there was a sticker on the face of the cooler that told you to remove the cap and drain the cooler at oil changes.

It was mostly useless. The cooler sits sideways so that the ports are halfway up and only half the oil drains out, the clean half. The sludgy half stays where it was, in the bottom.

Cessna recommends removing the cooler and flushing it every 1000 hours. If that isn't done, the cooler gets full of baked-in crud and doesn't cool so well. You end up with high oil temps on a new engine. A new oil cooler fixes that.
 
It originally had a tee on it. The lower end of the tee had a cap. When the airplane left the factory there was a sticker on the face of the cooler that told you to remove the cap and drain the cooler at oil changes.

It was mostly useless. The cooler sits sideways so that the ports are halfway up and only half the oil drains out, the clean half. The sludgy half stays where it was, in the bottom.

Cessna recommends removing the cooler and flushing it every 1000 hours. If that isn't done, the cooler gets full of baked-in crud and doesn't cool so well. You end up with high oil temps on a new engine. A new oil cooler fixes that.
So the t is correct
 
So the t is correct
yes.
121.jpg


063_2.jpg
 
Last edited:
That's a later version of the cooler mounting. The tee actually drains the cooler fairly well there. The earlier versions have the cooler mounted horizontally on the firewall.

1706838484675.png
 
Last edited:
That's a later version of the cooler mounting. The tee actually drains the cooler fairly well there. The earlier versions have the cooler mounted horizontally on the firewall.
And was some of the reason I didn't switch to a 180hp 360. That air shroud is a easy 2000, just the shroud plus the STC and more.
 
Last edited:
Back
Top