MANIFOLDS, ELBOWS AND RISERS
SERVICE MANUAL NUMBER 22
90-860074--1 FEBRUARY 2002 Page 7B-3
Torque
Description Nm lb-in. lb-ft
Intake / Exhaust Manifold Nuts 32 24
Rear Cover Bolts 40 30
Water Temperature Switch/Sender 13 120
Exhaust Pipe Bolts (MCM) 30 23
Exhaust Elbow Clamp Nut
Lubricants / Sealants / Adhesives
Description Part Number
Loctite 592 Pipe Sealant With Teflon Obtain Locally
Description
All diesel engines covered in this manual use an exhaust manifold which incorporates air
passages for both intake and exhaust in a single unit. Fresh water from the closed cooling
system is pumped by the engine water circulating pump through the combined intake and
exhaust manifold when the engine is operating.
When reference is made to the exhaust manifold, keep in mind that it includes the intake
air passages (or intake manifold).
Additionally, the engines exhaust manifold includes a flange for mounting a turbocharger
wastegate and valve assembly.