[215 Nk] Coolant Manifold; Inspection; Installation - Mack E7 Service Manual

5-101.bk Page 64 Friday, March 17, 2006 11:05 AM

[215 NK] COOLANT MANIFOLD

Inspection

Check the coolant manifold sections for
restrictions, cracks and flange wear. The manifold
cannot be repaired. Replace if any signs of
damage are present.

Installation

Refer to Figure 6-74.
1. Ensure that the front coolant manifold
section (1) is clean. Position a coolant/air
inlet manifold gasket on the mounting
surface.
2. Lubricate threads of the capscrews (5) with
clean engine oil and secure front coolant
manifold section with the mounting
capscrews.
3
1
1. Coolant manifold, front section
2. Couple
3. Clamp
4. Coolant manifold, rear section
5. Capscrew
Page 6-64
200 ENGINE ASSEMBLY
2
3
9
Figure 6-74 — Coolant and Air Inlet Manifold Installation
6. Air inlet manifold, rear section
7. Inlet air temperature sensor (sending unit)
8. Air inlet manifold, front section
9. Capscrew, 12-point
3. Place couple (2) in position on the couple
mounting flange. Place two clamps (3) over
the couple.
4. Insert the rear manifold section (4) in the
couple.
5. Place a gasket between the mounting
surfaces of the rear manifold section and the
cylinder head.
6. Lubricate threads of the mounting
capscrews (5) and secure the rear manifold
section with the mounting capscrews.
7. Torque all mounting capscrews to 25 lb-ft
(34 N m) using torque wrench J 24406 or
equivalent.
8. Ensure that the couple is properly installed
and secure it in position with the clamps.
Tighten the clamps to 38 lb-in (4.3 N m).
4
5
8
6
7
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