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The torque specs and pattern on the head bolts for a 1991 Toyota pickup with a 3.0 EFI is 50 foot pounds per bolt. The pattern is 4,5,6,3,7,2,8,1 with 1 being at the front of the engine.
torque for 2c engine cylinder head bolts
A C15 Caterpillar engine has dozens of torque specifications for many different engine bolts. The head bolts should be torqued at 350 pounds.
Conrod bolts
The torque specs for a Cadillac depend on which engine it has. For most 425, 572, 368, and 500 engines, the torque for the head bolts is 115 ft. pounds. The torque for the cam bolts is 25 ft. pounds, and the torque for the valve covers is 10 ft. pounds.
which one? The head bolts? Engine to transaxle? And, are you really asking what the tightening sequence and/or torque rating is?
The torque specs and pattern on the head bolts of a 1991 Toyota pickup with a 3.0 engine are 5, 4, 6, 3, 2, 7, 1, and 8. This sequence is started from the center of the head and requires 75 foot pounds of torque on each bolt.
Very important!
Mike each manufacture has a specific pattern for tightening the head bolts. I suggest you purchase a repair manual at most auto parts stores to find the correct pattern and torque.
The 3800 Pontiac engine had bolt torque specification is 160 pounds. The head bolts should be torqued in 40 pound intervals.
For the 1996 Chevy S-10 4.3 liter, the torque specs for the crankshaft damper bolts is 70 ft. lbs. For the cylinder head bolts, the torque is 65 ft. lbs, and for the engine mount-to-head bolts, the torque is 35 ft. lbs. For the engine mount-to-frame bolts, the torque is 52 ft. lbs.
start in the center and work in a circular pattern outward making each circle larger and larger. clockwise or anticlockwise as you wish. snug bolts on the first pattern, tighten bolts moderately on the second pattern and torque bolts on the third pattern. re-torque bolts on the fourth pattern for the final result.