Removing and reinstalling Intake Manifolds. - Dodge Challenger Forum: Challenger & SRT8 Forums
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#1 (permalink) Old 08-29-2009, 02:12 PM
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Removing and reinstalling Intake Manifolds.

A few stupid questions....

1) - Do you need to drain the engine coolant?

2) - What are the torques for the intake and Throttle body bolts?

3) - How do you re and re injectors?

4) - any other issues or knowledge dealing with the removal and reinstallation an intake manifold?

Just for some common knowledge if someone wants to paint or replace their intake.

Lets go all you Hemi Gurus out there
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#2 (permalink) Old 08-29-2009, 02:29 PM
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A good person to ask is Chryslertech.

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#3 (permalink) Old 08-29-2009, 02:38 PM
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RT6SPD,

I was wondering the same thing. I'd like to pop my black plastic unit off and turn it into Hemi Orange.

I can think of another question: What parts may be required like gaskets or O-rings?

Bill

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#4 (permalink) Old 08-29-2009, 02:41 PM
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I'm actually looking at doing the exact same thing. Going to maybe glossy black or, if i'm really bold and like cleaning a lot, stone white?
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#5 (permalink) Old 08-29-2009, 03:02 PM
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Quote:
Originally Posted by fltinstructor View Post
A good person to ask is Chryslertech.
Not after the last episode....

I think you are one of the more knowledgable Hemi heads here Flt. Are there coolant galleries in the intakes???
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#6 (permalink) Old 08-29-2009, 03:12 PM
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Quote:
Originally Posted by RT6SPD View Post
Not after the last episode....

I think you are one of the more knowledgable Hemi heads here Flt. Are there coolant galleries in the intakes???
Uh Oh...He's not starting trouble again is he?? I would suggest if your gonna do any engine work,buy a service manual or C/D.Torq. specs don't come with most parts as some people believe.techCONNECT ContentREMOVAL


1. Remove the engine covers (1). 2. Perform the fuel system pressure release procedure (Refer to 14 - Fuel System/Fuel Delivery - Standard Procedure) 3. Disconnect the fuel supply line (Refer to 14 - Fuel System/Fuel Delivery/FITTING, Quick Connect - Standard Procedure)


4. Disconnect the negative battery cable.


5. Remove the air cleaner housing (1) and clean air tube (2). 6. Disconnect electrical connectors for the following components:
  • Manifold Absolute Pressure (MAP) Sensor
  • Short runner valve (SRV)
  • Fuel Injectors
  • Electric Throttle Control (ETC )
7. Disconnect the brake booster hose, purge hose, and Make Up Air Hose (MUA).




NOTE: Remove the intake manifold and throttle body as an assembly. 8. Using the sequence shown, remove the intake manifold retaining fasteners 9. Remove intake manifold as an assembly.
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#7 (permalink) Old 08-29-2009, 03:19 PM
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techCONNECT ContentINSTALLATION


1. Position the intake manifold. 2. Using the sequence shown, install the intake manifold retaining bolts and tighten the fasteners to 12 N·m (9 ft. lbs.). 3. Connect the electrical connectors for the following components:
  • Manifold Absolute Pressure (MAP) Sensor
  • Short runner valve (SRV)
  • Fuel Injector electrical connectors
  • ETC ( Electronic Throttle Control )
4. Connect the brake booster hose, purge hose, and make-up air hose (MUA ).


5. Install the air cleaner housing (1) and clean air tube (2).


6. Connect the negative battery cable.


7. Position the engine covers (1) and snap onto the fuel rails.
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#8 (permalink) Old 08-29-2009, 03:23 PM
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You apparently have to use new bolts with lockpatch. I'm sure somebody here has tried to re-use the bolts after cleaning and a little threadlocker (You didn't hear that from me. )
Be careful with some types of threadlocker and aluminum!

I would likely put new manifold seals in if I were doing mine. I figure once and done.

--------------------------------
From the SM:

The intake manifold is made of a composite material with the runners tuned to give the best balance of power and torque. The manifold uses a single plane sealing system and separate PCV port seals to prevent leaks. The screws connecting the manifold to the head use a thread lock patch, and must be replaced when the manifold is serviced.
REMOVAL


1. Disconnect negative cable from battery (4).
2. Remove air cleaner assembly (Refer to 09 - Engine/Air Intake System/BODY, Air Cleaner - Removal) .
3. Disconnect electrical connectors and reposition harness.
4. Disconnect vacuum lines.
5. Perform fuel pressure release procedure(Refer to 14 - Fuel System/Fuel Delivery - Standard Procedure) .
6. Remove intake manifold retaining fasteners.
7. Remove intake manifold.


CLEANING

NOTE: There is NO approved repair procedure for the intake manifold. If severe damage is found during inspection, the intake manifold must be replaced.
Before installing the intake manifold thoroughly clean the mating surfaces. Use a suitable cleaning solvent, then air dry.


INSPECTION
1. Inspect the intake sealing surface for cracks, nicks and distortion.
2. Inspect the intake manifold vacuum hose fittings for looseness or blockage.


INSTALLATION

1. Install intake manifold seals (1,3).
2. Position intake manifold (2) in place.
3. Install new intake manifold bolts (with thread lock patch) and tighten to 12 N•m (105 in. lbs.) in the sequence shown.
4. Position wiring harness in place and connect electrical connectors.
5. Connect fuel line.
6. Connect brake booster and vacuum hoses.
7. Install air cleaner assembly (Refer to 09 - Engine/Air Intake System/BODY, Air Cleaner - Installation) .
8. Connect negative battery cable.






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#9 (permalink) Old 08-29-2009, 03:28 PM
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Thx BW that was exactly what I was looking for.

What is the Standard procedure to depressurize the fuel system?
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#10 (permalink) Old 08-29-2009, 03:28 PM
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Quote:
Originally Posted by RT6SPD View Post
A few stupid questions....

1) - Do you need to drain the engine coolant?
>>>No

2) - What are the torques for the intake and Throttle body bolts?
>>>Intake, see above

3) - How do you re and re injectors?
>>>?, see above

4) - any other issues or knowledge dealing with the removal and reinstallation an intake manifold?
>>>I never did one on these cars; go for it and let us know how you make out.

Just for some common knowledge if someone wants to paint or replace their intake.

Lets go all you Hemi Gurus out there
.
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