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What are the torgue specification for replacing the intake manifold.... after replacing the gasket... what should the torque be on the bolts and nuts.

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20 ft pound, tighten fasteners in sequence working out to the ends in a cross pattern. don't over torque

Posted on Jul 28, 2008

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The torque specs when replacing the inake gaskets on a 97 Lumina 3.1 liter enne


The torque specification is a 2-step process; tighten the vertical lower intake manifold bolts (the four middle ones) to 7 Nm (62 lb in). Tighten the diagonal lower intake manifold bolts (two on each end) to 7 Nm (62 lb in). Tighten the vertical lower intake manifold bolts (the four middle ones) to 13 Nm (115 lb in). Tighten the diagonal lower intake manifold bolts (two on each end) to 25 Nm (18 lb ft).

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Bolt torque sequence on 1991 jaguar xj6 4.0 intake manifold?


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HOW TO FIX A BLOWN HEAD GASKIT?


Buy a gasket kit for the upper end. Remove the valve cover intake and exhaust manifolds. Remove the head bolts. Remove head and clean up block from old gasket material. Take the head to a machinist and make sure that it is not warped. If it is warped either replace the head with a new one or have it machined true. Install new gasket and get torque specs with new head bolts and follow torque sequence using the correct torque specs. Clean exhaust, intake and valve cover of old gaskets. install new gaskets and torque according to specifications.

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What are the torque measurements for the rocker arms and intake manafold?


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These engines are not equipped with rocker arms. The camshafts directly actuate the valves.

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When install or connect the check the following:
- Pushrods and the rocker arms. Torque the bolts to 24 ft. lbs. (32 Nm). - Rocker arm cover using a new gasket. Torque the rocker cover bolts to 89 inch lbs. (10 Nm).
- Heater bypass pipe. Torque the screw at the water pump to 106 inch lbs. (12 Nm), the bolt at the cylinder head corner to 18 ft. lbs. (25 Nm) and the nut to 18 ft. lbs. (25 Nm).


About the INTAKE MANIFOLD...
-
Intake manifold nuts and bolts and tighten to 89 inch lbs. (10 Nm)
- Pushrods and rocker arms. Torque the bolts to 89 inch lbs. (10 Nm) plus an additional 30 degree turn. - Lower intake manifold. Apply sealant to the threads of the bolts and torque the bolts to 115 inch lbs. (13 Nm).



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Exploded view of the upper and lower intake-3.1L & 3.4L engines


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Fig. Lower intake manifold tightening sequence-3.1L & 3.4L engines

Hope help.

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How to replace the intake manifold? I have a 96 grand cherokee v8, unable to replace the thermostat housing to the manifold because one of the screw holes cracked off on the manifold.


Position The Intake Manifold Gasket On The Engine.Dowels May Be Provided To Hold The Gasket In Place During Manifold Installation.. The Use Of Silicone Sealer Is Required. Especially Where The Front And The Rear Seals Meet The Side Gaskets On V-type Engines. Installing An Intake Manifold On V-type Engines Can Be Difficult. It Is Critical That You Use Sealer Properly On The Engine To Prevent Vacuum,Coolant, And Oil Leaks.

Start All The Fasteners By Hand Before Tightening. This Will Aid In Bolt Hold Alignment. Then Torque The Intake Manifold Fasteners To Specifications. Use The Specific Torque Pattern Given In The Service Manual.. Basically The Pattern Will Be A Crisscross Pattern

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That depends on type of gasket being used. Some fel-pro gaskets have sealant built into the gaskets, I have used some sealant to help hold gaskets in place around bolt holes during installation but that's not always necessary...and yes there is a torque sequence for intake manifolds...example given in link.

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2005 Dodge 1500 code p0404 EGR valve.


The electronic EGR valve and solenoid assembly is attached to the rear of the left cylinder head ,

  1. Remove electrical connector (5) at top of EGR valve solenoid.
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  5. Remove and discard metal gasket located between cylinder head and valve assembly.
INSTALLATION
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  4. Position EGR valve to cylinder head. Install and tighten two bolts (5). Refer to Torque Specifications.
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