You must use a circular tightening sequence starting in the middle of the cylinder head and work your way out to both ends.....Start at 20 Ft. Lbs. and Stop at 80 Ft. Lbs. Use the Circular Sequence in 20 Ft. Lbs. increments till You Finish off at 80 Ft. Lbs.......Lightly oil the threads and the underside of the Head Bolts before starting to insure correct Torque wrench reading.............
Thank you. Kind regards. Johan
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SOURCE: what torque spec for chev aveo 2004 cylinder head
18 lb ft+60°+60°+60°+10°
NEW HEAD BOLTS ARE REQUIRED WHEN REPLACING THE HEAD OR HEAD GASKET.
SOURCE: torque settings for cylinder head nissan sentra
Tighten in sequence to 29ft.lbs then tighten in sequence to 58ft lbs. then loosen all bolts. Then tighten in sequence to 33ft lbs. then tighten each bolt in sequence 90 degrees then tighten each bolt again 90 degrees
SOURCE: 94 mazda B3000 3.0L cylinder head torque specs
Step 1 torque to 59 ft pounds
2. Loosen one full turn
3. 37 ft pounds
4. 68 ft pounds
Use torque sequence below
SOURCE: need cylinder head gasket torque specs.
looks like there is special sequence to reassemble and tightening, a quick note replace any bolts that have two punch marks.tighten as follows: x x x x x 10 4 2 6 8 x x x x x 7 5 1 3 9 torque all down to 15 ft lbs torque to 30 ft lbs plus 90 degrees. Good luck!
SOURCE: I have 4.9L6 need torque specs for cylinder head
for cylinder head the torque is : step 1 55 ft-lb, step 2 65 ft-lb, step 3 85 ft-lb. Rocker arm stud nut or bolt is 17 to 23 ft-lb. and valve cover bolt 72 to 108 in-lb.
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