belisle
Registered User
Quebec, CANADA
When rebuilding my PA-12 I have installed a new nose bowl without an hole for the cooler and I changed the heavy oil cooler for an aluminum Harrisson model 8526250 and installed it at the rear of the #4 cylinder as per drawings of 337 forms that I had from the cub club. I had also the engine majored. Since that time the oil temperature is pretty hot on days above 80˚F. It shows 245˚ and over. I am still running with mineral oil. The oil pressure is in the green arc. So I checked the oil temperature gauge probe with an electric kettle and it was right on the 210˚ mark with boiling water. A friend that has an other oil cooler loan me his Niagara (20002A) cooler to check if it was the oil cooler and it made the same. I saw on this site that some guys have made a mod on their baffles to create a kind of venturi to increase the volume of air to pass through the oil cooler. I would like to know how to make this mod or find a drawing of it to fix my problem. Also I wonder if I change the oil for regular Aeroshell W100 if it will help to lower the temperature. Any comment, drawing or help will be appreciated. Please send your comment to my email address: belisleb@webnet.qc.ca even if you post them here.
Bernard
Bernard