Perkins 1103D XK Systems Operation Testing And Adjusting page 28

28
Testing and Adjusting Section
Illustration 19
(A) Dial gauge
(1) Valve head
(2) Valve guide
(3) Radial movement of the valve in the valve guide
(4) Valve stem
1. Place a new valve in the valve guide.
2. Place Tooling A with the magnetic base on the
face of the cylinder head.
3. Lift the edge of the valve head (1) to a distance
of 15.0 mm (0.60 inch).
4. Move the valve in a radial direction away from
Tooling (A). Make sure that the valve moves away
from Tooling (A) as far as possible. Position the
contact point of Tooling (A) on the edge of the
valve head (1). Set the position of the needle of
Tooling (A) to zero.
5. Move the valve in a radial direction toward Tooling
(A) as near as possible. Note the distance of
movement which is indicated on Tooling (A). If the
distance is greater than the maximum clearance
of the valve in the valve guide, replace the valve
guide.
When new valve guides are installed, new valves
and new valve seat inserts must be installed.
Valve guides and valve seat inserts are supplied
as an unfinished part. The unfinished valve guides
and unfinished valve seat inserts are installed in
the cylinder head. Then, the valve guides and
valve inserts are cut and reamed in one operation
with special tooling.
This document has been printed from SPI². Not for Resale
Refer to Specifications, "Cylinder Head Valves" for
the maximum clearance of the valve in the valve
guide.
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KENR6912