SHAFT 0617250 - Caterpillar

START BY:a. remove glow plugsb. remove fuel injection valves1. Drain the coolant from the cylinder heads. 2. Separate the push rods and rocker arms with tool (A). Move the rocker arms to one side.3. Put identification marks on valve bridges (1) as to their location on the head. Remove valve bridges (1). 4. Remove precombustion chambers (2) with tool (B).Install Precombustion Chambers
1. Put liquid soap on the bores of the cylinder head and on seal (2).2. Put 5P3931 Anti-Seize Compound on the threads of precombustion chamber (3). Install chamber (3) and gasket (1) in the cylinder head. Tighten the precombustion chamber with tool (B) to a torque of 205 14 N m (150 10 lb.ft.). 3. Install valve bridges (4) in their correct location.4. Connect the push rods and rocker arms with tool (A).5. Check the level of the coolant of the engine. See the Maintenance Guide.END BY:a. install fuel injection valvesb. install glow plugs