Heating the Oil

The oil heat is taken from the cab heat plumbing, via a brass "T" (top center, red hose, and bottom right, inset). The coolant return taps into a similar "T" that is not shown, below the alternator.

Also shown is the lube oil Racor filter (bottom center) and the air intake, which has been relocated to make room for this mess (gray pipe, upper right). Inset shows temperature sensor clamped to the heater plumbing "T". Across the left and top is the relocated wiring, which had formerly gone across the center of the pictured area.