REPAIR INSTRUCTIONS, PART 1
Page 245
Inlet Manifold Installation
[214 HD]
358
Figure 358 — Inlet Manifold Installation — LCF Chassis
359
Figure 359 — Installing Inlet Manifold Seal
1. Lubricate and install the inlet manifold seal
in the groove in the manifold.
Apply a minimal amount of MACK approved
silicone sealant in the seal groove to hold the seal
in place during assembly. Install the manifold
within 20 minutes of applying sealant.
2. Place the manifold in position on the cylinder
head and insert the attaching screws with
mounting spacers.
Replacement inlet manifolds contain longer
mounting bosses and require only new longer
screws to attach them to the cylinder head, no
spacers. If the original manifold is to be reused,
new screws with mounting spacers are
required.
360
Figure 360 — Torque Sequence for Inlet Manifold Screws
3. Using a torque wrench, tighten the screws in
sequence according to specification.
4. Assemble the air pressure/temperature
sensor on the manifold at the rear.
5. Using a torque wrench, tighten the sensor
according to specification.
1. Inlet Manifold
2. Inlet Manifold Screw
3. Inlet Manifold Mounting Spacer (Required only with original
manifolds)
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