PLATE AS 5086567 - Caterpillar

Illustration 1. Turbocharger oil lines group.Adaptable As: The part numbers of the improved turbocharger oil drain elbows [1W5542 (RH), 1W5543 (LH)] have not changed. The improved oil drain elbows are in effect as shown in the chart. If an engine has a problem with oil drain tube leakage, the tubes should be inspected for cracks or worn spots, and replaced if needed. On earlier engines, the turbocharger oil drain elbows can be replaced or machined to the larger diameter. This larger diameter is 40.55 0.08 mm (1.596 .003"). If the elbows are machined, they must have a 30° chamfer on the bores. This chamfer has an outside diameter of 43.8 0.5 mm (1.72 .02"). See Illustration 2.
Illustration 2. Dimensions to machine a turbocharger oil drain elbow.