SEAL GP 2194302 - Caterpillar

Remove Cylinder Head Assembly
START BY:a) remove fuel lineb) remove fuel filtersc) remove valve cover basesd) remove rocker shaft and push rodse) remove turbochargerf) remove instrument panel 1. Disconnect bracket (1) from the cylinder block and clamp (3) from the bracket and remove breather tube (2) from the engine. 2. Remove the bolts. Slide adapter assembly (5) into pipe (6).3. Remove tube (7) from pipe (6) and the cover.4. Remove the bolts and plate (4) from the cylinder head and the timing gear cover. 5. Remove tube (8) from the expansion tank and elbow (9).6. Remove the bolts and elbow (9) from the aftercooler. 7. Remove bolt (11) and disconnect clip (10).8. Install bolt (11) back in the hole that holds the lifting bracket. 9. Remove the bolts and elbow (12) from the aftercooler. 10. Remove bolt (14) and disconnect clips (13) that hold the fuel lines to the cylinder head. 11. Remove bolts (15) and (17) and bracket assembly (16) from the cylinder head and air cleaner housing.12. Install bolts (17) back in the holes that hold the lifting bracket. 13. Fasten tooling (A) and a hoist to cylinder head (18). Remove bolts (19) and cylinder head (18) from the spacer plate. The weight of the cylinder head is 222 kg (490 lb.).
Do not put the cylinder head down on a flat surface. This can cause damage to the fuel injection valves.
14. Remove seals (20) and cylinder head gasket (21) from the spacer plate.Install Cylinder Head Assembly
Be sure a new gasket has been installed between the spacer plate and the cylinder block. See REMOVE AND INSTALL SPACER PLATE.1. Make sure all gasket surfaces are clean and free of dirt. 2. Install a new head gasket (2) on the spacer plate and seals (1) on the dowels. 3. Fasten tooling (A) to cylinder head (3) and put it in position on the spacer plate.4. Put clean engine oil on the threads of the cylinder head bolts. Insall the cylinder head bolts and washers. Tighten the bolts in sequence shown in illustration A87019x1:a) Tighten bolts 1 through 20 in number sequence to a torque of 270 25 N m (200 20 lb.ft.).b) Tighten bolts 1 through 20 in number sequence to a torque of 450 20 N m (330 15 lb.ft.).c) Tighten bolts 1 through 20 in number sequence to a torque of 450 20 N m (330 15 lb.ft.) by hand.d) Install rocker shafts and push rods. See INSTALL ROCKER SHAFTS AND PUSH RODS.e) Tighten bolts 21 through 26 in number sequence to a torque of 270 25 N m (200 20 lb.ft.).f) Tighten bolts 21 through 26 in number sequence to a torque of 450 20 N m (330 15 lb.ft.).g) Tighten bolts 21 through 26 in number sequence to a torque of 450 20 N m (330 15 lb.ft.) by hand.h) Tighten the 3/8" bolts to a torque of 43 7 N m