Question about 1999 Cadillac DeVille

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What are the cylinder head torque specs for a 1999 cadillac deville 4.6l

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I can help you with this but I have to ask one question. Have you already taken this apart and putting it back together? Did you rethread all the head bolt holes because they strip out when you tighten them and you will ruin the head gaskets. Let me know, I have don't this job quite a few times. I'll have to look up the actual torque specs. Also you are wanting the spec for the cylinder head bolts and not the cylinder head cover bolts right?

Posted on Jun 12, 2010

  • Vincent Dal
    Vincent Dal May 10, 2015

    I redid heads and yes I'm rethreading the cylinder head bolt holes have all torque specs but the camshaft cap bolts, I purchased a manuel but it says go to dealer to have this done lol

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1999 cad need the torque spec for the head going too get retread

Posted on May 05, 2012

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Head bolt torque spec for 96 Deville


You will need to buy new head bolts and I would recommend getting a repair manual , the torque is done in degrees . First step all 11 m bolts torque to 22foot pounds then 60 degrees go back to the first bolt then torque another 60 degrees and last do this one more time that will give you a total of 180 , The 6m bolts is 106 inch pounds , you do really need a repair manual because their are certen steps out lined that need to be followed . Good luck take care because you are tightening these bolts into and aluminum block and they are known to pull threads when pulling out the old bolts , you will know if this has happened because you will see the materiel in the bolt threads

Aug 14, 2014 | 1996 Cadillac DeVille

1 Answer

I need head bolt torque specs for a 2000 cadillac deville dts..


DeVille, Eldorado, Seville 1999-2005

Cylinder Head

Print


Removal & Installation

Left Side

  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Drain the cooling system.
  3. Properly relieve the fuel system pressure.
  4. Remove or disconnect the following:

    Negative battery cable Exhaust manifold Alternator Water crossover Intake manifold Valve cover Timing cover Secondary camshaft drive chain Power steering return hose retaining bolt from the cylinder head 3 M6 external drive bolts from the front portion of the cylinder head 10 M11 internal drive cylinder head bolts Cylinder head and gasket.
  5. Clean the head mating surfaces.

To install:

0996b43f80231662.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Left cylinder head bolt torque sequence-4.6L engine

  1. Install the cylinder head with a new gasket. Lubricate the bolts with engine oil prior to installation.
  2. Torque the M11 bolts in sequence as follows:
    1. Step 1: 30 ft. lbs. (40 Nm), plus an additional 70 degrees
    2. Step 2: Turn an additional 60 degrees
    3. Step 3: Turn an additional 60 degrees (total 190 degrees)

  3. Torque the M6 bolts to 106 inch lbs. (12 Nm)
  4. Install or connect the following:

    Power steering return hose retaining bolt to the cylinder head and tighten to 37 ft. lbs. (50 Nm) Secondary camshaft drive chain Timing cover Valve cover Intake manifold Water crossover Exhaust manifold Negative battery cable
  5. Change the oil and filter.
  6. Fill the cooling system.

Right Side
  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Drain the cooling system.
  3. Properly relieve the fuel system pressure.
  4. Remove or disconnect the following:

    Negative battery cable Exhaust manifold Water crossover Intake manifold Valve cover Timing cover Secondary camshaft drive chain Electrical connector from the Engine Coolant Temperature (ECT) sensor Nut attaching the coil cassette ground wire to the cylinder head Bolt attaching the exhaust crossover pipe to the cylinder head Bolt attaching the right transaxle mount bracket to the cylinder head Bolt attaching the rear transaxle brace to the transaxle Nuts attaching the rear transaxle brace to the cylinder head Rear transaxle brace 3 M6 external drive bolts from the front portion of the cylinder head 10 M11 internal drive cylinder head bolts Cylinder head and gasket
  5. Clean the head mating surfaces.

To install:

0996b43f80231663.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Right cylinder head bolt torque sequence- 4.6L engine

  1. Install the cylinder head with a new gasket. Lubricate the bolts with engine oil prior to installation.
  2. Torque the M11 bolts in sequence as follows:
    1. Step 1: 30 ft. lbs. (40 Nm), plus an additional 70 degrees.
    2. Step 2: Turn an additional 60 degrees.
    3. Step 3: Turn an additional 60 degrees (total 190 degrees).

  3. Torque the M6 bolts to 106 inch lbs. (12 Nm).
  4. Install or connect the following:

    Rear transaxle brace over the studs located at the rear of the right cylinder head Nuts attaching the rear transaxle brace to the cylinder head, loosely Bolts attaching the rear transaxle braces to the transaxle and tighten to 37 ft. lbs. (50 Nm) Nuts attaching the rear transaxle brace to the cylinder head and tighten 37 ft. lbs. (50 Nm) Electrical connector to the ECT sensor Bolt attaching the exhaust crossover pipe to the cylinder head and tighten to 18 ft. lbs. (25 Nm) Nut attaching the coil cassette ground wire to the cylinder head and tighten to 13 ft. lbs. (17 Nm) Secondary camshaft drive chain Timing cover Valve cover Intake manifold Water crossover Exhaust manifold Negative battery cable
  5. Change the oil and filter.
  6. Fill the cooling system.

Apr 16, 2013 | 2000 Cadillac DeVille DTS

1 Answer

Cylinder head bolt torque specs for 2000 Cadillac catera 3.0L 6 cyl


YOU NEED NEW HEAD BOLTS OLD HEAD BOLTS BEEN STRETCHED. YOU HAVE TORQUE HEAD BOLTS IN FIVE PASSES. FIRST PASS TORQUE HEAD BOLTS 18 FT LBS. SECOND PASS ADD ADDITIONAL 90 DEGREES.THIRD PASS ADD ADDITIONAL 90 DEGREES.FOURTH PASS ADD ADDITIONAL 90 DEGREES.FIFTH PASS ADD 15 DEGREES.

Dec 22, 2010 | 2000 Cadillac Catera

1 Answer

I wanna know how many foot lbs per torque specs on the pulley for a power steering pump?


The power steering pulley on a 1999 DeVille on either a 4.9 or northstar engine is a pressed on fit (special tools to remove and install pulley)

Aug 26, 2010 | 1995 Cadillac DeVille

1 Answer

Whats the proper order and torque specs for a 99 32v northstar head?


REMOVAL & INSTALLATION NOTE: The manufacturer recommends that the entire powertrain be removed from the vehicle before removing the cylinder heads.
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Drain the cooling system.
  3. Properly relieve the fuel system pressure.
  4. Remove or disconnect the following:
    • Negative battery cable
    • Powertrain assembly
    • Intake manifold
    • Cam covers
    • Harmonic balancer
    • Timing chain front cover
    • Oil pump
    WARNING
    Align all timing marks before performing the next step.
    • Chain tensioner from the timing chain
    • Cam sprockets
    NOTE: The timing chain remains in the chain case.
    • Timing chain guides, access for the retaining screws is through the plugs at the front of the cylinder head
    • Water crossover
    • Exhaust manifold
    • Cylinder head bolts by reversing the torque sequence
    • Cylinder head and discard the gasket
    WARNING
    With the camshafts remaining in the cylinder head some valves will be open at all times. Do not rest the cylinder head on a flat service with the cylinder face down, or valve damage will result. NOTE: Clean all gasket mating surfaces. Clean the head bolt holes in the crankcase. WARNING
    Be careful when cleaning aluminum gasket surfaces to prevent damage to the sealing surfaces.
  5. Check the cylinder head for warpage; it must be less than 0.002 in. (0.05mm). If the cylinder head was resurfaced, the dimension between the combustion chamber gauge pad and the deck surface must be at least 10.5mm. To install: NOTE: Refer to Section 1 of this manual for the cylinder head torque sequence illustration. The illustration is located after the Torque Specification Chart.
  6. Install or connect the following:
    • New cylinder head gasket
    • Cylinder head, lubricate the bolts with engine oil
  7. Torque the M11 bolts, in sequence, as follows:
    1. Step 1: 22 ft. lbs. (30 Nm).
    2. Step 2: Turn an additional 60 degrees.
    3. Step 3: Turn an additional 60 degrees (total 180 degrees).
  8. Torque the M6 bolts to 106 inch lbs. (12 Nm).
  9. Set the camshaft timing
  10. Camshaft guide bolt access hole plugs in the cylinder heads. The plugs should be seated and snug
  11. Install or connect the following:
    • Intake cam covers
    • Oil pump
    • Timing chain front cover
    • Harmonic balancer
    • Cam sprockets
    • Chain tensioner to the timing chain
    • Timing chain guides
    • Intake manifold
    • Water crossover
    • Exhaust manifold. Torque the nuts to 22 ft. lbs. (30 Nm) or the bolts to 18 ft. lbs. (25 Nm).
    • Powertrain assembly
    • Negative battery cable Fig. 1: Minimum head resurface dimension 7922vg04.gif

  12. Fill the cooling system.
  13. Evacuate and charge the air conditioning system.
  14. Run the engine and check for leaks.
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Aug 19, 2010 | 1999 Cadillac DeVille

1 Answer

Torque specs for cylinder heads 4.9 v8 engine (NOT NORTHSTAR) cadillac.


5850a5e.jpg

Fig. Cylinder head torque sequence-4.5L and 4.9L engines (not Nothstar, this is 4.6L)

  1. Tighten cylinder head bolts, in sequence, to 38 ft. lbs. (50 Nm).
  2. Tighten cylinder head bolts, in sequence, to 68 ft. lbs. (90 Nm).
  3. Tighten No. 1, 3 and 4 cylinder head bolts to 90 ft. lbs. (120 Nm).

Hope this helps (remember rated).

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1 Answer

Head bolt torques spec


3.8L V6

cylinder head bolt torque

step 1 37 ft lbs.

step 2 an additional 130 degrees

step 3 4 center bolts an additional 30 degrees

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4 Answers

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Fig. Cylinder head bolt tightening sequence-3.1L engines & 2001-04 3.4L engines

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

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Hope this help (remember rated and comment this).

Mar 30, 2010 | 1999 Pontiac Grand Am GT

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