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Intake Manifold Inspection and Replacement
 
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Pelican Technical Article:

Intake Manifold Inspection and Replacement

Mike Holloway

Time:

15 minutes15 mins

Tab:

$1 to $300

Talent:

*

Tools:

10mm socket wrench with 6 inch extension

Applicable Models:

Mercedes-Benz R107 (1972-89)

Parts Required:

Intake manifold

Hot Tip:

Count screws and bolts

Performance Gain:

Cleaner airflow

Complementary Modification:

Clean intake

The intake manifold allows air to pass from the air box containing the air filter on through to the combustion chamber. During the combustion cycle, partially burned fuel may create deposits on the intake manifold and could contribute to lack of performance.

Removal of the air box is required to get to the intake manifold.

Before you do any work on your car it is important that you wear safety glasses, work gloves and dispose of all fluids in a safe manner.  Coolant is poisonous and should be treated as such.  Animals and small children have been known to die from ingesting coolant.  If you have to jack up your car, make sure to use jack stands and chock your wheels as well as applying the parking brake. Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If you're working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste. Recycle parts, packaging and fluids when possible. Never work on your vehicle if you feel the task is beyond your ability. Always wear eye and hand protection. Disconnect the battery before working on your car. 

Using a 10mm socket wrench, loosen and remove the bolt located on the left side of the air box.
Figure 1

Using a 10mm socket wrench, loosen and remove the bolt located on the left side of the air box.

Using a 10mm socket wrench, loosen and remove the bolt located on the left side of the air box.
Figure 2

Using a 10mm socket wrench, loosen and remove the bolt located on the left side of the air box.

Lift off the air box.
Figure 3

Lift off the air box. The cover has been removed in thisPicture. Removing the cover is not required. If you choose to leave the cover on you should remove the airline leading into the air box.

Using a 10mm socket wrench and an extension, remove all the bolts that hold the intake manifold.
Figure 4

Using a 10mm socket wrench and an extension, remove all the bolts that hold the intake manifold.

Lift off the intake manifold.
Figure 5

Lift off the intake manifold.

Inspect the inside for signs of deposits.
Figure 6

Inspect the inside for signs of deposits. Notice the sludge build-up in thePicture. Chances are the combustion chamber for each 8 cylinders has a deposit build up as well.

Inspect the intake for deposits as well.
Figure 7

Inspect the intake for deposits as well. Fortunately the deposits in thePicture can be cleaned off with a safe cleaning solvent and a cloth. Gasoline will also work. If you elect to clean off the intake, use proper safety procedures and dispose of all materials according to safe handling procedures as outlined by the fire department of your town. Assembly is the reverse of disassembly.

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Comments and Suggestions:
Big A Comments: Hello,
I just bought a 73K, one owner 560 and am in the process of evaluating the different systems for updates or repairs as needed. These articles are a great resource in helping me understand MB architecture, "a picture is worth a thousand words".
June 26, 2015
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help.
- Nick at Pelican Parts
 

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