Question about 2005 Chevrolet Aveo
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Posted on Jan 02, 2017
Step 1: 18 lb.-ft.
Step 2: additional 60 degrees.
Step 3: additional 60 degrees.
Step 4: additional 60 degrees.
Step 5: additional 10 degrees.
Each step involves starting at the center two bolts of the head and alternately tightening in a criss-cross pattern, ending with the bolts on the outer edge of the head.
Posted on Sep 14, 2009
You have two bolt sizes the shorter or smaller of the two sizes is called M10 the torque is 22ft lbs +65 degrees +65 degrees again The larger of the two bolts is called a M12 the torque for these are 26ft lbs +65+65. There is a tightening order staring at the top center bolt and working in a circle They have to be torqued in three steps. If you dont under stand something about this repost and I can help you farther. If this is helpful please mark that it was I do this for free to help people DRIVE SAFE TIM
Posted on Feb 19, 2010
Tighten the cylinder head bolts to 50 N·m (37 lb ft) in sequence.
Posted on Mar 10, 2010
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Aug 04, 2014 | 2007 Mitsubishi Outlander 2.4
Fig. Fig. 9: Cylinder head bolt torque sequence A
Fig. Fig. 11: Cylinder head bolt torque sequence C
Sep 25, 2011 | Honda Accord Cars & Trucks
Jun 08, 2011 | Hyundai Elantra Cars & Trucks
Since you didn't say which engine you have, I've pulled torque specs for 3 different engines. Also, since I can't include a diagram showing the relative locations of the numbered head-bolt locations, it would be a good idea for you to purchase a vehicle specific repair guide that will show this info.
Take particular note about the TTY (Torque to Yield) bolts used on 2 of the 3 engines shown. It is said that new head bolts MUST BE USED when head is replaced or re-installed to obtain the proper torque.
B2500 4 Cylinder
Torque sequence: --------- ' 10 6 2 4 8
' front ' ' ' 7 3 1 5 9 ' -----------Step 1: torque in sequence to 51
Ft/Lbs Step 2: torque again in sequence to 51 Ft/Lbs Step 3: final
tighten all bolts an additional 90 to 100 degrees recheck final
torque in sequence *** CAUTION ***engine uses Torque To Yield head
bolts (TTY) that permanently stretch during the initial installation.
New head bolts must be used when cylinder head is replaced or
re-installed to obtain proper torque.
B3000 3.0 6 Cylinder
Torque sequence ---------- ' 6 4 2 8 '
' ' ' 5 1 3 7 ' ---------- Step 1: torque to 59 Ft/Lbs Step 2: loosen
in sequence (1) full turn Step 3: torque to 41 Ft/Lbs Step 4: torque
to 73 Ft/Lbs
B4000 4.0 6 Cylinder
Torque sequence --------- ' 5 1 3 7 ' '
' ' 6 4 2 8 ' --------- Step 1: torque cylinder head bolts in
sequence to 26 Ft/Lbs Step 2: torque cylinder head bolts to 56 Ft/Lbs
Step 3: turn cylinder head bolts in sequence an additional 90-degrees
recheck final torque in sequence *** CAUTION ***engine uses Torque To
Yield head bolts (TTY) that permanently stretch during the initial
installation. New head bolts must be used when cylinder head is
replaced or re-installed to obtain proper torque.
Good luck with this job!
Feb 06, 2011 | 1998 Mazda Pickup
Fig.: Cylinder head bolt torque sequence-2.2L engine
Apply a coating of 1052080 or equivalent sealer to the cylinder head bolt threads. Install the cylinder head bolts (within 15 minutes of sealer application), then tighten them in the proper sequence first to a torque of 46 ft. lbs. (63 Nm) for long bolts or to 43 ft. lbs. (58 Nm) for short bolts and then tighten all bolts an additional 90 degree turn using a torque angle meter.
Hope this helps (remember to rate this answer).
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