Engine Valve Lash - Inspect - Perkins 1204F-E44TA Systems Operation Testing And Adjusting

96
Air Inlet and Exhaust System
6. Install the fuse for the glow plugs.

Engine Valve Lash - Inspect

Table 6
Tool Part Number
A (1) 21825576
27610291
A (2)
27610289
T400014
B
(1) The Crankshaft Turning Tool is used on the front pulley.
(2)
This Tool is used in the aperture for the electric starting motor.
Illustration 84
Cylinder and valve location
(A) Exhaust valve
(B) Inlet valve
Too much valve lash can cause some broken valve
stems, springs, and spring retainers. Damage to the
valve mechanism will produce emissions in excess of
the correct specification.
The hydraulic lifter will compensate for all normal
wear of the components of the valve train.
Too much valve lash can be an indication of the
following problems:
• Worn camshaft and valve lifters
• Worn rocker arms
This document has been printed from SPI2. NOT FOR RESALE
i04319692
Required Tools
Part Description
Crankshaft Turning Tool
Barring Device Housing
Gear
Timing Pin (Crankshaft)
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• Bent pushrods
• Broken socket on the upper end of a pushrod
• Loose adjustment screw for the valve lash
• Issues with the hydraulic lifters
If the camshaft and valve lifters show rapid wear, look
for fuel in the lubrication oil or dirty lubrication oil as a
possible cause.
Valve Lash Check
Qty
1
1
Accidental engine starting can cause injury or
1
death to personnel.
1
To prevent accidental engine starting, turn the
ignition switch to the OFF position and place a do
not operate tag at the ignition switch location.
1. Remove the valve mechanism cover. Refer to
Disassembly and Assembly, "Valve Mechanism
Cover - Remove and Install" for the correct
procedure.
Illustration 85
Typical example
2. Remove the plug (1) from the cylinder block. Use
Tooling (A) to rotate the crankshaft until the
number one piston is at the top center position.
Note: The number one piston may be on the
compression stroke or the exhaust stroke.
UENR4490-01
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