The second attempt at an oil cooler mount worked much better than the first one. I adjusted the dimensions slightly the second time around, which allowed me to position the cooler further inboard and higher. The lower part of the cooler will be below the top of the cylinder fins, so it will not get a direct blast of air. But the bottom end of the cooler is 1.25 inches aft of the back baffle, so that will allow room for the air to get at it.

Read on for more.

I had to cut away a big portion of the flange on the upper right rear part of the cooler so it would not interfere with the engine mount. I'll use a short bolt going through the front flange only at that position. The other bolts will go through both flanges, with a spacer to keep the bolt tension from bending the rear flanges.

Each side of the mount is made from two pieces of 0.093" thick aluminum, cut from a piece of 1" x 2" C-channel. The two pieces are bolted together to position the top of cooler 1.75" from the back baffle, and the lower edge 1.25" from the baffle.

The flange on the right side of the mount (left side in the picture) will be narrowed to about 1" wide. The flanges of the mount will be riveted to the back baffle, which is reinforced with a piece of 0.063" thick aluminum sheet.