GASKET 4T7968 - Caterpillar

A - 5P4158 Gauge Illustrated Firing order (injection sequence) ... 1, 3, 4, 2Injection timing before TC (top center) ... 13° 30' 1°(1) Torque for bushing 130 +10 or -5 lb. ft. (177 +14 or -7 N m)(2) Thickness of spacers:9N6496 Spacer ... .161 in.(4.12 mm)9N6495 Spacer ... .166 in.(4.22 mm)5M2697 Spacer ... .170 in.(4.32 mm)2M4208 Spacer ... .174 in.(4.42 mm)2M4209 Spacer ... .178 in.(4.52 mm)2M4210 Spacer ... .182 in.(4.62 mm)2M4211 Spacer ... .186 in.(4.72 mm)2M4212 Spacer ... .190 in.(4.83 mm)5M2691 Spacer ... .194 in.(4.93 mm)5S7189 Spacer ... .198 in.(5.03 mm)4N9839 Spacer ... .203 in.(5.16 mm)4N9840 Spacer ... .207 in.(5.26 mm)(3) 1S206 Spring:Length under test force ... 1.39 in.(35.3 mm)Test force ... 15.4 .8 lb.(68.5 3.6 N)Free length after test ... 1.59 in.(40.4 mm)Outside diameter ... 979 in.(24.87 mm)(4) Timing dimension for the fuel injection pumps:OFF Engine with 5P4158 or 8S7167 Gauge ... 4.2675 .0020 in.(108.395 0.051 mm)ON Engine with 5P4158 or 8S7167 Gauge ... 4.2216 .0020 in.(107.229 0.051 mm)(5) Length of pump plunger (new) ... 2.5934 .0015 in.(65.872 0.038 mm)Minimum permissible length (worn) ... 2.5869 in.(65.707 mm)(6) Bore in the bearings for the rack:Bearing at the rear ... .5018 .0018 in.(12.746 0.046 mm)Bearing at the front ... .5023 .0015 in.(12.758 0.038 mm)Diameter of fuel rack ... .4985 .0002 in.(12.662 0.005 mm)Diameter of fuel rack ... .4985 .0002 in.(12.662 0.005 mm)Maximum permissible clearance between rack and bearings (worn) ... .005 in.(0.13 mm)(7) Bore in bearings for the camshaft ... 1.8755 .0005 in.(47.638 0.013 mm)Diameter of bearing surfaces (journals) of the camshaft (new) ... 1.8730 .0005 in.(47.574 0.013 mm)Maximum permissible clearance between the bearings and the camshaft bearing surfaces (journals)(worn) ... .010 in.(0.25 mm)(8) Torque for the nuts that hold the fuel lines (use 5P144 Fuel Line Socket) ... 30 5 lb. ft.(40 7 N m)(9) Torque for the nuts that hold the nozzles ... 105 5 lb. ft.(142 7 N m)(10) Body.(11) Put 5P3931 Anti-Seize Compound on threads of glow plug and tighten to ... 120 24 lb. in.(13.6 2.8 N m)(12) Tighten nozzle finger tight on body.(13) Put 5P3931 Anti-Seize Compound on threads of precombustion chamber and tighten to ... 150 10 lb. ft.(205 14 N m) See Glow Plug Positioning.