3406B DIESEL TRUCK ENGINE Caterpillar

(1) Distance from vertical centerline of dowel hole to vertical centerline of pilot bore ... 186.33 mm (7.336 in)

(2) Bore in cylinder block for idler gear shaft pilot ... 31.750 ± 0.025 mm (1.2500 ± .0010 in)

Depth of bore from surface of cylinder block ... 11.9 ± 2.5 mm (.47 ± .10 in)

Diameter of idler gear shaft pilot ... 31.687 ± 0.025 mm (1.2475 ± .0010 in)

(3) Tighten bolts that hold idler gear shaft in position to ... 55 ± 7 N·m (40 ± 5 lb ft)

(4) Distance from horizontal centerline of dowel and crankshaft to horizontal centerline of pilot bore ... 247.02 mm (9.725 in)