C-21
35 Series 4WD, Model - 3535, 4035, 4535 and 5035 SM June’08
Manifolds, Cylinder Head & Valves
1. DESCRIPTION
1a. MANIFOLDS
Manifolds are used in various designs depending
on engine type and application. Inspect manifold
for tight sealing, whenever the engine is
overhauled. Two manifolds are used on diesel
engines. The intake manifold being bolted to left
side of the cylinder head and the exhaust manifold
being bolted to the right hand side.
The exhaust manifold for 3 & 4 cylinder
Tier IV < 50 Hp engines is same for all models.
1b. CYLINDER HEAD AND VALVES
The cylinder head is cast in one piece and houses
the intake and exhaust valves. Valve guides are
press-fit. Valves are operated by rocker arms shaft
mounted on the cylinder head. Lubrication for the
valve operating mechanism is provided through
rifle drilled passages in the crankcase and cylinder
head.
The valve rocker arm shaft assembly, thermostat
housing inlet & exhaust manifolds are fitted on
the cylinder head.
The crankcase filler cap, mounted on front cover,
also serves as a breather to the cylinder head.
The breather cap outlet is connected back to intake
manifold through PCV valve.
2. MANIFOLDS
2a. REMOVAL :
i) Intake & Exhaust Manifold Removal :
a) Drain and remove the power steering reservoir.
b) Remove the fuel filter (2-1).
c) Remove the injector lines (1-1).
d) Remove the manifold bolts & lift it off.
e) Exhaust manifold can be removed by removing
the four bolts (1-2).
Fig. 2
Cylinder Head
Intake Manifold Exhaust Manifold
Fig. 1
NOTE: In overall Engine Section, 3 cylinder pictures
shown.
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