Oil Cooler Air Flow Improvement Modification

Route engine air box hose to blind corner of oil cooler instead of heater shroud to increase air flow to oil cooler for lower oil temperatures. This modification will lower oil temperature 12 to 15 degrees.

Add elbow below oil cooler and route hose to heater shroud to improve heater efficiency.

Oil cooler drawing
Fig 1. Oil cooler
<--- FWD Looking down on oil cooler mount. (no cooler installed yet)
Elbow weldment
Fig 2. Elbow weldment (ref. drawing) below oil cooler for heater shroud inlet hose.
Oil cooler hose
Fig 3. White arrow points to oil cooler hose installed in blind corner of cooler.