Inlet And Exhaust Valves - Remove And Install - Perkins 1103 Disassembly And Assembly

36
Disassembly and Assembly Section
3. Install the valve spring compressor (1) in position
on the cylinder head in order to compress the
appropriate valve spring (5). Compress the valve
spring (5).
4. Install the valve keepers (3).
NOTICE
Do not turn the crankshaft while the valve springs are
removed.
5. Carefully release the pressure on the valve
spring compressor (1). Remove the valve spring
compressor (1). Ensure that all of the valves are
secured in place by a valve spring and valve
keepers. Rotate the crankshaft through about
45 degrees in order to clear the piston from the
valve. Lightly strike the top of the valve with a soft
hammer in order to ensure that the valve keepers
(3) are properly installed.
Note: If you are replacing all of the valve springs the
procedure can be done on two cylinders at the same
time. The procedure can be done on cylinder 1 and
cylinder 4, and on cylinder 2 and cylinder 3.
End By:
a. Install the rocker shaft assembly. Refer to this
Disassembly and Assembly, "Rocker Shaft and
Pushrod - Install".
Inlet and Exhaust Valves -
Remove and Install
Removal Procedure
Table 3
Required Tools
Part Number Part Description
21825496
Valve Depth Gauge
21825666
Valve Spring Compressor
27610235
Setscrew Adapter
Start By:
a. Remove the cylinder head assembly. Refer to this
Disassembly and Assembly Manual, "Cylinder
Head - Remove".
Note: Ensure that the machined face of the cylinder
head is kept on a clean, soft surface in order to
prevent damage to the machined surface.
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened
component life.
Note: The removal procedure is identical for the
three cylinder and the four cylinder engines. The
illustrations show the four cylinder engine.
i01947652
Illustration 70
Typical example
1. Use a dial indicator to check the depth of the
valves below the face of the cylinder head before
the valve springs are removed. Refer to the
illustration 70 and refer to Specifications, "Cylinder
Head Valves" for the correct dimensions.
Note: The head of the inlet valve has a larger
diameter than the head of the exhaust valve.
Qty
1
2. Place a numerical index mark on the heads of
the inlet valves and on the exhaust valves so
1
that each valve can be installed in the correct
1
sequence during installation.
SENR9779-02
NOTICE
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