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Posted on Mar 27, 2011

Torque specs for 3.9l engine cylinder head and crankshaft bolts.

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chasdall

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  • Posted on Mar 27, 2011
chasdall
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Joined: Mar 27, 2011
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Page 3-26 of Chilton's reads:
14. Using no sealer whatsoever, install the new head gasket(s) to the block. Clean, dry and lightly oil all head bolts threads. Install the heads and install the head bolts.

Tighten head bolts in sequence to 50 ft. lbs. (68Nm). Repeat the sequence retightening the bolts to a final torque of 105 ft. lbs. (143 Nm) and repeat the second step to ensure that all bolts are accurately torqued.

torgue chart from chilton (page 3-11) for your engine and year show:
main bearing bolts 85 ft lbs
rod bearing bolts 45 ft lbs
crankshaft damper bolts 135 ft lbs
flywheel bolts 55 lbs

4 Related Answers

Anonymous

  • 233 Answers
  • Posted on Sep 17, 2009

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
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Barry N Melissa Spring

  • 230 Answers
  • Posted on Feb 07, 2009

SOURCE: need to know cylinder head bolt torque specs

Head Bolt Torque For your 1994 Oldsmobile Cutlass Supreme (3.4L SFI DOHC): clearpixel.gif Foot pounds (Final torque) clearpixel.gif Note: Torque sequence --------- | 6 2 3 7 | | 5 1 4 8 | --------- Step 1: torque in sequence to 33 Ft/Lbs Step 2: turn an additional 90 degrees Recheck final torque in sequence *** CAUTION ***engine uses Torque To Yield head bolts (TTY) thatpermanently stretch during the initial installation.New head bolts must be used when cylinder head isreplaced or re-installed to obtain proper torque. clearpixel.gif clearpixel.gif clearpixel.gif Foot pounds (Final torque) clearpixel.gif Note: Torque sequence --------- | 8 4 1 5 | | 7 3 2 6 | front --------- of engine | 6 2 3 7 | | 5 1 4 8 | Step 1: torque to 40 Ft/Lbs --------- Step 2: turn an additional 90 degrees Recheck final torque in sequence *** CAUTION ***engine uses Torque To Yield head bolts (TTY) thatpermanently stretch during the initial installation.New head bolts must be used when cylinder head isreplaced or re-installed to obtain proper torque.

Anonymous

  • 98 Answers
  • Posted on Sep 04, 2008

SOURCE: how to rebuilt the cylinder head of daihatsu charade 3 cylinder engine

Which motor?

ITGuy181

  • 1 Answer
  • Posted on Dec 02, 2008

SOURCE: Engine Bolt Torques- 2005 Chevy Impala/3400 Engine

Head Bolts
Step one 37 ft lbs then tignten 120 degrees more

Rocker arms
Step one 11 ft lbs then tighten 90 degresss more

Upper intake
89 inch lbs
Lower intake
132 inch lbs

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