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2008 Pontiac G5 Question: i need to know the cylinder head bolt torque spec

 

Question

brousse, Miami, FL, January 04, 2011, 14:53
 Rookie

i been going around looking for the repair manual book no one has it please my car had a blown head gasket i need to know the cylinder head bolt torque spec for 2008 pontiac G5 if...................................................................................................//////////////////////////............................///////////////////////////////,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,.////////////////////////////////.................,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,...

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  • Answer #1

    mastertech6371 January 04, 2011, 15:00
    Profile_thumbnail
     Master

    what motor?? 2.2 or 2.4

    Roy

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    brousse, January 04, 2011, 16:18
     Rookie

    2.2Lt

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    Visitor, January 04, 2011, 16:37

    Cylinder Head Replacement

    Tools Required

    J 38185 Hose Clamp Pliers
    J 45059 Angle Meter
    Removal Procedure




    Drain the cooling system. Refer to Cooling System Draining and Filling (GE 47716 Fill) (See: Cooling System\Service and Repair\Cooling System Draining and Filling (GE 47716 Fill))Cooling System Draining and Filling (2.2L (L61), 2.4L (LE5)) (See: Cooling System\Service and Repair\Cooling System Draining and Filling (2.2L (L61), 2.4L (LE5))) .
    Remove the exhaust manifold. Refer to Exhaust Manifold Replacement (RPO L61) (See: Exhaust System\Exhaust Manifold\Service and Repair)Exhaust Manifold Replacement (RPO LE5) (See: Exhaust System\Exhaust Manifold\Service and Repair) .
    Remove the intake manifold. Refer to Intake Manifold Replacement (See: Intake Manifold\Service and Repair\Intake Manifold Replacement) .
    Reposition the radiator surge tank air bleed hose clamp.
    Remove the radiator surge tank air bleed hose from the cylinder head.
    Reposition the radiator inlet hose clamp using the J 38185 .
    Remove the radiator inlet hose from the cylinder head.
    Remove the timing chain. Refer to Camshaft Timing Chain, Sprocket, and Tensioner Replacement (See: Timing Chain\Service and Repair) .



    Remove the cylinder head bolts in the sequence shown. Discard the bolts.



    Remove the cylinder head.
    Remove the cylinder head gasket.
    Clean all of the gasket surfaces.
    Use the following steps when cleaning the cylinder head and cylinder block surfaces:
    Use a razor blade gasket scraper to clean the cylinder head and cylinder block gasket surfaces. Do not scratch or gouge either surface.
    Important: DO NOT use any other method or technique to clean these gasket surfaces.

    Use a NEW razor blade on the cylinder head and a NEW blade on the cylinder block.
    Important: Be careful not to gouge or scratch the gasket surfaces. DO NOT gouge or scrape the combustion chamber surfaces. The feel of the gasket surface is important, not the appearance. There will be indentations from the gasket left in the cylinder head after all of the gasket material is removed. These small indentations will be filled in by the NEW gasket.

    Hold the razor blade as parallel to the gasket surface as possible.
    Clean the old sealer/lube and any dirt from around the bolt holes.
    Important: DO NOT use a tap to clean the cylinder head bolt holes.

    Clean the bolts holes with a nylon bristle brush.
    When cleaning the cylinder head bolt holes use suitable commercial spray liquid solvent and compressed air from an extended-tip blow gun in order to reach the bottom of the holes.
    Installation Procedure




    Important: DO NOT use any sealing material.

    Install the cylinder head gasket.
    Install the cylinder head.
    Install NEW cylinder head bolts.
    Notice: Refer to Fastener Notice .




    Install and tighten the cylinder head bolts in the sequence shown.
    Tighten the bolts to 30 N.m (22 lb ft) plus an additional 155 degrees using the J 45059

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  • Answer #2

    donaldautorepair from Donald Auto Repair, January 05, 2011, 06:10
     Technician

    According to Alldata, in the on-line manual, the "cylinder head bolt torque spec" is a two step process. The first is 22 foot pounds and the second pass is 155 degrees for both the 2.2 and the 2.4 engine on a 2008 Pontiac G5.

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