CYLINDER HEAD AS 1578380 - Caterpillar

Large bolts (3/4 inch). Put engine oil on all bolt threads and tighten the bolts in the following step sequence:1. Tighten bolts from 1 to 20 in number sequence to ... 200 20 lb. ft.(270 25 N m)2. Tighten bolts from 1 to 20 in number sequence to ... 330 15 lb. ft.(450 20 N m)3. Tighten bolts from 1 to 20 in number sequence again to ... 330 15 lb. ft.(450 20 N m)4. Install the rocker arm shafts (1) for the engine valves.5. Tighten bolts from 21 to 26 in number sequence to ... 200 20 lb. ft.(270 25 N m)6. Tighten bolts from 21 to 26 in number sequence to ... 330 15 lb. ft.(450 20 N m)7. Tighten bolts from 21 to 26 in number sequence again to ... 330 15 lb. ft.(450 20 N m)8. Tighten the twelve small bolts (2) to ... 32 5 lb. ft.(43 7 N m)(2) Small bolts (3/8 inch). See Step 8, above.(3) Torque for twelve studs in cylinder head ... 20 3 lb. ft.(25 4 N m)(4) Height of cylinder head (new) ... 4.440 .010 in.(112.78 0.25 mm)