MANIFOLDS

Figure 1. - Intake and Exhaust Manifold (400 Series Turbocharger for Payline Shown)*

MANIFOLDS - CONT - TM-5-3820-256-24-5_176

TM-5-3820-256-24-5 Drilling System Well Rotary Truck Mounted Air Transportable 600 Feet Capacity Model LP-12 NSN 3820-01-246-4276 Manual
Page Navigation
144

SERVICE MANUAL MANIFOLDS Section 2 GENERAL INTAKE MANIFOLD The intake manifold, located on the left side of the engine, serves as a passage for filtered air to enter the combustion chamber. Manifold design and configuration varies with application (Turbocharger vs. naturally aspirated). EXHAUST MANIFOLD The exhaust manifold, mounted on the right side of the engine, contains six passages which remove exhaust gases from each cylinder. Air flows through the intake manifold (with the boost of a Turbocharger on some engine models) into the cylinder head combustion chamber. By special cylinder head design the air swirls to bring about high turbulent air-to fuel mixing. Correct torque values are necessary when installing manifolds so efficient fuel-air mixing results. PATCH TYPE INTAKE MANIFOLD MOUNTING BOLTS A prevailing torque type bolt with plastic patch (Fig. 2) has replaced the standard intake manifold mounting bolt. The new patch type bolt provides a more secure retention with the intake manifold and cylinder head. In the event of intake manifold repair, the standard type bolt should be replaced by the patch type bolt. IMPORTANT: Refer to appropriate parts catalog for the particular application when ordering bolts so the correct length(s) are obtained. SPECIFICATIONS Intake Manifold bolt Torque Data .......................................... 27 N•m (20 Ibf-ft) Exhaust Manifold Nut Torque Data .......................................... 77 N•m (57 Ibf-ft) Exhaust Manifold Flange Thickness ................................19.05 mm (.75 in) Other specifications are not applicable for service. INTERCOOLER The intercooler is a heat exchanger that removes heat generated by compression of air in the turbocharger and transfers the heat to the cooling system. Cooling the air intake charge reduces the formation of oxides of nitrogen. Use of such a device enables certain engines to meet California Emission Standards. Figure 2. - Patch Type Bolt 1. Bolt 2. Plastic Patch CGES-185-3 PRINTED IN UNITED STATES OF AMERICA Page 2

Privacy Statement
Press Release
Contact