3508 EUI Engine for Off-Highway Truck/Tractors Caterpillar

Illustration 1	g01273502
Front view of cylinder block

Illustration 2	g01273506
Right side view of cylinder block

(1) Spacer plate

Thickness of spacer plates ... 12.313 mm (0.4848 inch)

(2) Gasket

Thickness of gasket between the cylinder block and spacer plates ... 0.20 ± 0.05 mm (0.0080 ± 0.0020 inch)

(3) Dowel

All dowels extend above the face by the following distance: ... 21.0 ± 0.5 mm (0.83 ± 0.02 inch)

(4) Plug

Torque ... 100 ± 15 N·m (75 ± 11 lb ft)

(5) Height of Cylinder liner

For the correct method of determining height of the liner, refer to Testing And Adjusting, "Cylinder Liner Projection".

(6) Bore

Camshaft bore with the camshaft bearings ... 86 ± 0.06 mm (3.386 ± 0.024 inch)

(7) Camshaft bearing junction

(8) Centerline through oil holes in camshaft bearings

Oil holes must be positioned from horizontal at angle (X) to the following angle: ... 20 ± 5 degrees

Note: All centerlines through oil holes in the camshaft bearings (8) and bearing junctions (7) must be in the position that is shown for each side of the cylinder block.

(9) New dimension from centerline of crankshaft bearing bore to the top of the block ... 586.00 mm (23.071 inch)

(10) Main bearing cap width

Width of main bearing cap ... 340.030 ± 0.015 mm (13.3870 ± 0.0006 inch)

Width of cylinder block for main bearing cap ... 339.985 ± 0.015 mm (13.3852 ± 0.0006 inch)

Tight press fit between the sides of the main bearing cap and the cylinder block ... 0.075 mm (0.0030 inch)

Loose press fit between the sides of the main bearing cap and the cylinder block ... 0.015 mm (0.0006 inch)

(11) Bore in the block for the main bearings

Standard, original new size ... 169.742 ± 0.020 mm (6.6827 ± 0.0008 inch)

0.63 mm (0.025 inch) larger than original size ... 170.372 ± 0.020 mm (6.7076 ± 0.0008 inch)

(12) New dimension from the centerline of the crankshaft bearing bore to the bottom of the block (pan rails) ... 236 mm (9.30 inch)

(13) Main bearing cap bolts

Use the following procedure to tighten the main bearing cap bolts:

1. Install main bearing caps with the part number and FRONT toward the front of the block. Each cap has a number. Each cap must be installed in the same position as the correct number on the side of the cylinder block pan rail.

2. Put clean engine oil on the bolts before assembly.

3. Start the bolts by hand prior to using torque wrenches. Tighten the bolts in the letter sequence.

   Torque ... 190 ± 14 N·m (140 ± 10 lb ft)

4. Tighten the bolts in the letter sequence again.

   Rotation ... 180 ± 5 degrees

(14) Dowel

The dowel extends from the rear face of the block by the following distance: ... 6.0 ± 0.5 mm (0.24 ± 0.02 inch)

(15) Plug

Torque ... 100 ± 15 N·m (75 ± 11 lb ft)

(16) Dowel

The dowels extend from the front face of the block by the following distance: ... 6.0 ± 0.5 mm (0.24 ± 0.02 inch)

(17) Dowel

The dowels extend from the rear face of the block by the following distance: ... 19.0 ± 0.5 mm (0.75 ± 0.02 inch)

(18) Dowel

The dowels extend from the front face of the block by the following distance: ... 40.0 ± 0.5 mm (1.58 ± 0.02 inch)