GOVERNOR GP 8N3353 - Caterpillar

(1) Torque for taperlock studs for cylinder head ... 120 10 lb. ft.(160 14 N m)(2) Depth to install front camshaft bearing ... .31 in.(7.9 mm)(3) Depth to install rear camshaft bearing ... .66 in.(16.8 mm) Install camshaft bearings so oil holes in bearings are in alignment with oil passages in cylinder block.(4) Bore in cylinder block for camshaft bearings ... 3.2505 .0005 in.(82.563 0.013 mm)(5) Balancer gear shafts (V-8 Engines only). Dimension from boss on cylinder block to end of shaft ... 2.686 .002 in.(68.22 0.05 mm) Install shafts so centerline of two holes with threads is parallel with bottom face of cylinder block.(6) Depth of liner counterbore in block ... .499 .001 in.(12.67 0.03 mm) Maximum permissible bore depth after reconditioning ... .545 in.(13.84 mm)Height of liner over block (under installation pressure) ... .004 to .008 in.(0.10 to 0.20 mm)(7) Dimension (new) from centerline of crankshaft bearing bore to top of block (top deck) ... 27.1875 .0025 in.(690.563 0.064 mm)(8) Bore in block for main bearing ... 6.3725 .0005 in.(161.862 0.013 mm) Alignment for the bore in the block for the main bearings ... .000 to .003 in.(0.0 to 0.08 mm)(9) Dimension (new) from centerline of crankshaft bearing bore to bottom of block (pan rails) ... 7.9985 .0015 in.(203.162 0.038 mm)(10) Torque for taperlock studs for main bearing cap ... 500 +50 -0 lb. ft.(680 +70 -0 N m)(11) Torque for nut holding cap for main bearings (lubricate stud threads): a. Tighten all nuts to ... 200 10 lb. ft.(270 14 N m)b. Put mark on each nut and end of stud.c. Tighten each nut from mark ... 120 5°(12) Clearance between main bearing caps and cylinder block ... .0010 (0.025 mm) tight to .0012 (0.030 mm) loose