3116 and 3126 Truck Engine Cylinder Block Diagram

(1) Depth that cup plugs are installed (measured from block face to top edge of plug) … 1.25 ± 0.25 mm (0.049 ± 0.010 in)

(2) Distance all dowels extend from top face … 14 ± 2 mm (0.55 ± 0.08 in)

(3) Distance two large dowels extend from rear face … 12.0 ± 0.5 mm (0.47 ± 0.02 in)

(4) Distance all dowels extend from front face … 8.0 ± 0.5 mm (0.31 ± 0.02 in)

(5) Bores in block for all camshaft bearings except front bearing … 69.000 ± 0.038 mm

(2.7165 ± 0.0015 in)

(6) Locate bearing oil hole for all camshaft bearings (except from bearing) at top of bore.

(7) Bore in block for front camshaft bearing … 70.000 ± 0.025 mm (2.7559 ± 0.0010 in)

(8) Front camshaft bearing joint location.

(9) Front camshaft bearing oil hole.

NOTE: Install front camshaft bearing with bearing oil hole (9) aligned with oil hole in block and bearing joint (8) positioned as shown.

(10) Width of main bearing cap … 159.995 ± 0.020 mm (6.2990 ± 0.0008 in)

Width of cylinder block main bearing cap … 160.000 ± 0.018 mm (6.2992 ± 0.0007 in)
(11) Bore in block for main bearings … 95.000 ± 0.013 mm (3.7402 ± 0.0005 in)

(12) Main bearing cap bolts. Install as follows:

Install bearing caps with sequence number to the right, 1 through 7 (front to rear).

a. Before assembly, put 2P2506 Thread Lubricant on the bolt threads and washer face.
b. Tighten both bolts of each bearing cap to a torque of … 54 ± 7 N·m (40 ± 5 lb ft)
c. Then tighten bolts an additional … 90 ± 5 degrees (1/4 turn
(13) Location of bearing cap sequence number.

(14) Dimension from centerline of crankshaft bore to pan rail … 110.00 mm (4.331 in)

(15) Dimension from centerline of crankshaft bore to top of block … 322.00 mm (12.677 in)

(16) Cylinder bore size (8WL1-UP) … 105 mm (4.134 in)

Cylinder bore size (1WM1-UP) … 110 mm (4.331 in)
NOTE: Bore size must be checked with a 4C4377 Cylinder Head Stress Plate and gasket installed. Refer to Installation Of 7C6208 Cylinder Sleeve, Special Instruction SEHS9047

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