BobCat 753 – RECONDITIONING THE ENGINE – Cylinder Head Removal And Installation

Remove the nuts from the valve cover, remove the valve cover and gasket [Figure 70-100-1].

Remove the fuel injector nozzles. (See Fuel Injector Removal And Installation on Page 70-70-10.)

Remove the glow plugs. (See Glow Plugs Removal And Installation on Page 70-70-2.)

Remove the belt shield. (See Shield Removal And Installation on Page 30-50-1.)

Remove the alternator. (See Removal And Installation on Page 60-30-4.)

Remove the rocker arm and shaft assembly (Item 1) [Figure 70-100-2].

Remove the push rods (Item 2) [Figure 70-100-2].

Remove the intake and exhaust manifolds.

Remove the water return hose [Figure 70-100-3].

Remove the cylinder head bolts in order of # 18 to # 1 [Figure 70-100-4].

Installation: Put oil on the bolt threads. Tighten the bolts in the correct sequence of #1 to #18 to 68-72 ft.-lbs. (93-98 Nm) torque.

NOTE: Retighten the cylinder head bolts in the correct sequence after the engine has been run for 30 minutes.

Remove the cylinder head from the engine block.

Installation: Always use new head gasket and new O-ring. Make sure the O-ring is seated over the dowel [Figure 70-100-5].