Question about Chevrolet Malibu
Cylinder Head Bolt Torque Specification for the GM 3.1L and 3.4L Engines is as follows:
Tighten the cylinder head bolts to 44 ft.lbs (60 N-m) in the order to seat gasket.
Tighten an additional 95 degrees.
Then make a second pass tightening all the bolts an
Remember, 95° is just a little more than a 1/4 turn, not 1/2 turn, or from 12 o’clock to 3 o’clock on the dial. Do not tighten beyond this.
Posted on Feb 17, 2019
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Posted on Jan 02, 2017
Vortecs are a little different that old school small blocks, grab a Haynes or Chiltons, the cross patterns and specs are simply diagramed. Vortec, as any really, start with 25# then 45# and then final torque which I believe is around 70-75# but to be sure verify with the manual. AutoZones, Murry's, Adavance auto all carry the books, Cheap insurance.
Posted on Apr 25, 2009
Hello. I can help you out. Just need to know if it is 2x4 or 4x4 and what liter size is this engine?
You can go to autozone.com and register for free and you will get full free online repair manual.
Just let me know.
Posted on Nov 15, 2009
99 chevy malibu v6 3.1 engine, head bolt torque is-- 98 through 2001 is step1- 37 foot lbs, step 2- rotate an additional 90 degrees (1/4 turn). the rocker arm bolts are 168-in. lbs.
Posted on Sep 07, 2010
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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!
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