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Engine torque specs for 4.3L chevy 1999 blazer

Need tightening sequence and torque specs.

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: tightening head

New Headbolts are recommended

Long bolts are torqued to 46'lbs + 90 degrees.

Short bolts are torqued 43'lbs + 90 degrees.

Start in the center, and work to the edges, torquing the bolts in two stages.

Rockers are torqued to 22'lbs.

Posted on Dec 21, 2008

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johnny5846
  • 379 Answers

SOURCE: Looking for the torque specs for 1998 chevy astro van?

1998 chevy astro 4.3 v6 torque specs include :
* foot pounds *
balance shaft (if equiped) gear bolt = step 1 = 15 ft.lbs. step2 = additional 35 degrees.
camshaft sprocket bolt = 18 ft. lbs.
connecting rod cap = step 1 = 20 ft. lbs. step 2 = additional 70 degrees.
crankshaft damper bolt = 74 ft. lbs.
crankshaft oil deflectorbolt/nut = 27 ft.lbs.
cylinder head bolts = step 1 = 15 ft. lbs. step 2 = additional 73 degrees. (tighten in sequence)
2811243.jpg


exhaust manifold bolts = step 1 = 11 ft. lbs. step 2 = 22 ft. lbs.
flywheel bolt = 74 ft. lbs.
main bearing cap bolts = step 1 = 15 ft. lbs. step 2 = additional 73 degrees.
oil filter adapter bolt = 15 ft. lbs.
oil pan bolt/nut = 18 ft. lbs.
oil pump bolt = 66 ft. lbs.
rocker arm with press in studs = 18 ft. lbs.
rocker arm with screw in studs = 19 ft. lbs.
valve lifter retainer bolt = 12 ft. lbs.
water pump bolt = 33 ft. lbs.
* inch pounds *
balance shaft retaining plate bolt = 106 in. lbs.
camshaft retainer plate bolt = 106 in. lbs.
front cover bolt = 106 in. lbs.
intake manifold upper = step 1 = 44 in. lbs. step 2 = 88 in. lbs.
intake manifold lower = step 1 = 27 in. lbs. step 2 = 106 in. lbs. step 3 = 133 in. lbs. ** (tighten bolts in sequence)

cbb8861.jpg

thanks for your vote !

Posted on Dec 28, 2008

Danno5691
  • 17 Answers

SOURCE: I need the torque specs and sequence on a 1998 chevy 350 vortec

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.
Dan

Posted on Apr 25, 2009

SOURCE: need torque specs for a 85 s10 chevy with a 2.5 engine?

here you go!

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Posted on Jun 21, 2009

reisdos
  • 1297 Answers

SOURCE: I need torque specs and bolt tightening sequences

what bolt specs do you need?

Posted on Sep 04, 2010

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1 Answer

Need head bolt torque specs for a 1996 saturn sl


Quote:





Originally Posted by norvelplagbao52

1993 saturn sl2 1.9 dohc cylinder head torque
specs and sequence
Cylinder head bolt
tightening procedure:
CYLINDER HEAD BOLT TIGHTENING SEQUENCE:

INTAKE
SIDE
8 4 1 5 9

7 3 2 6 10
EXHAUST SIDE

In sequence,
torque the cylinder head bolts. Torque: 30 Nm (22 ft-lbs).
In sequence,
torque all bolts. Torque: 50 Nm (37 ft-lbs)
In sequence, turn each bolt an
additional 90 degrees.





Originally Posted by norvelplagbao52

1993 saturn sl2 1.9 dohc cylinder head torque
specs and sequence
Cylinder head bolt
tightening procedure:
CYLINDER HEAD BOLT TIGHTENING SEQUENCE:

INTAKE
SIDE
8 4 1 5 9

7 3 2 6 10
EXHAUST SIDE

In sequence,
torque the cylinder head bolts. Torque: 30 Nm (22 ft-lbs).
In sequence,
torque all bolts. Torque: 50 Nm (37 ft-lbs)
In sequence, turn each bolt an
additional 90 degrees.

Sep 19, 2013 | 1996 Saturn SL

1 Answer

Intake Manifold tightening sequence plus torque specs


start in the middle and alternate left to right and the torque on a alloy manifold will be around 14lbs or a nip with a 3/8th drive rachet ,any water passages use contact adhesive around the water ports .

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99 Honda civic 1.6 engine torque specs and sequences for cylinder head


Tighten the cylinder head bolts to their final torque specification in two steps. Use a crisscross sequence starting with the bolts at the middle of the head and working toward the outer bolts.
  1. Step 1: Tighten each bolt to 22 ft. lbs. (30 Nm).
  2. Step 2: Tighten each bolt to 61 ft. lbs. (85 Nm).

zjlimited_1681.jpg

Fig. Cylinder head bolt loosening sequence - 1.6L (B16A2) engines (click image for zoom)

Hope helps.

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1 Answer

What is the torque specifications and sequencing for the intake manifold on a 1998 Chevy blazer?


zjlimited_198.jpg

Fig. 1: Intake manifold installation-4.3L engines (click over image for zoom)


zjlimited_200.jpg

Fig. 2: Intake manifold bolt tightening sequence-1996-98 4.3L engines

Install the bolts and tighten in sequence and in 3 steps as follows:

  1. First step to 26 inch lbs. (3 Nm).
  2. Second step to 106 inch lbs. (12 Nm).
  3. Final step to 11 ft. lbs. (15 Nm).

Hope this helps (remember to rate this answer). Good luck.

Dec 08, 2010 | 1998 Chevrolet Blazer

1 Answer

I AM DOING THE HEAD GASKET ON 1999 SAAB 95 4 CYL I NEED THE TORQUE SPEC ON CYL. HEAD


Torque spec

Step 1- 44 Ft.Lbs.
Step 2- 59 Ft.Lbs.
Step 3- Tighten bolts an additional 90 degrees.

Here the head bolt's tightening sequence.

bcas1298_1.gif

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Need the torque specs and sequence for the engine oil pan 1999 potiac sunfire 2.4


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7245611.jpg


Fig. Cylinder head bolt tightening sequence-2005 3.4L engines

5579e52.jpg

Hope this help (remember rated and comment this).

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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.

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Torque Spec for '99 Chevy C1500 5.7L engine lower intake manifold


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  1. Step 1: 71 inch lbs. (8 Nm).
  2. Step 2: 106 inch lbs. (12 Nm).
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f2266b6.jpg

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