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Torque sequence for 1996 chevrolet van intake manifold with a 4.3 litre moter

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  • Chevrolet Master
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Ha, you tried to fool me with the bit about a 3.5 L motor--I could find that one...here is the complete procedure from AutoZone.com:




Installation To install:

  1. Clean the gasket mounting surfaces. Be sure to inspect the manifold for warpage and/or cracks. If necessary, replace it.
  2. Position the gaskets on the cylinder head with the port blocking plates to the rear and the This Side Up stamps facing upward. Then apply a 3 / 16 in. (5mm) bead of RTV sealant on the front and rear of the engine block at the block-to-manifold mating surface. Extend the bead 1 / 2 in. (13mm) up each cylinder head to seal and retain the gaskets.

    torque sequence for 1996 chevrolet van intake - 0996b43f80208c7b.jpg enlarge_icon.torque sequence for 1996 chevrolet van intake - enlarge_tooltip.gif><span><img src= Fig. Lower intake manifold tightening sequence-4.3L engines
  3. Install the lower intake manifold. Tighten the bolts in sequence and in 3 steps, as follows:


    1. Step 1: 26 inch lbs. (3 Nm).
    2. Step 2: 106 inch lbs. (12 Nm).
    3. Step 3: 133 inch. lbs. (15 Nm).

  4. Install or connect the following:

    Power steering pump Alternator bracket bolt near the thermostat housing Wiring harness to the lower manifold components, including the injector, EGR valve and ECT sensor Air conditioning compressor bracket-to-the lower intake manifold pencil braces
  5. Install transmission oil dipstick tube, if necessary.

    Fuel supply and return lines to the rear of the lower intake
  6. Temporarily reattach the negative battery cable, then pressurize the fuel system (by cycling the ignition without starting the engine) and check for leaks.
  7. Disconnect the negative battery cable.
  8. Install or connect the following:

    Heater hose to the lower intake Upper radiator hose to the thermostat housing Distributor assembly and engage the wiring Ignition coil Connect vacuum hoses to the upper and lower intake manifold. New upper intake manifold gasket, making sure the green sealing lines are facing upward Upper intake manifold Manifold retainers. Tighten them to 88 inch lbs. (10 Nm) using two passes. Purge solenoid and bracket Brake booster vacuum hose at the upper intake manifold PCV hose to the rear of the upper intake manifold Vacuum hoses to both the front and rear of the manifold assembly Throttle body Throttle linkage to the upper intake Wiring to the upper intake components including the TP sensor, IAC motor, MAP sensor and the fuel meter Engine cover Air intake assembly
  9. Connect negative battery cable.
  10. Refill the engine cooling system.
  11. Start the engine and check for leaks.

Posted on Aug 26, 2010

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intake manifold-glquxvjrls3o0ta25lrevmb0-4-0.jpg

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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,
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In sequence, turn each bolt an
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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
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Intake torque on top & bottom bolts


Apply sealer to the lower intake manifold bolts prior to installation. On the 5.0L and 5.7L engines, install the bolts and torque in sequence as follows:
Step 1: 71 inch lbs. (8 Nm).
Step 2: 106 inch lbs. (12 Nm).
Step 3: 11 ft. lbs. (15 Nm).


12_23_2011_2_54_59_am.gif

Fig. Lower intake manifold bolt tightening sequence-5.0L and 5.7L engines / zoom image link here

Upper intake manifold mounting bolts/studs, torque in a crisscross pattern as follows:
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Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day and Merry X-mas.

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Notice: Proper lower intake manifold fastener tightening sequence and torque is critical. Always follow the tightening sequence, and torque the intake manifold bolts using the 3 step method. Failing to do so may distort the crankshaft bearing bore alignment and cause damage to the crankshaft bearings.

Tighten the lower intake manifold bolts.

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Tighten the bolts on the first pass in sequence (1-8) to 3 N·m (27 lb in).
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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.

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8ef3de6.jpg

Fig. Exploded view of the upper and lower intake manifold and fasteners

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- Install the upper intake manifold and tighten the mounting bolts to 18 ft. lbs. (25 Nm).

Hope helps (remember to rate this).

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6a7ecad.jpg

Fig. Intake manifold torque sequence-3.7 & 4.7L engines


Hope this help (remember comment and rated this).

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