15
Engine,
Cylinder
Head,
Valves
CHECKING
VALVE
GUIDES
1.
Remove deposits with
cleaning
reamer.
2.
Place cy Iinder head
on
mounting
plate
US
4420 and
iasten
with
bracket.
3.
Insert new valve in
guide.
End
of
valve
stem must be flush with
guide.
4.
Determine side
play.
Intake Exhaust
Wear
valve ·
valve
guide
guide
limit
Side play
0.30
mm
1.2mm
Inside
8,02mm
9.02mm
9.06mm
diameter
dia.
dia.
dia.
REPLACING
VALVE
GUIDES
Worn or damaged valve guides can be replaced
with the universal cylinder head repair
set.
Oversize valve guides with a shoulder are
available
for
repairs.
1.
Clean and check cylinder
head.
Cracked
cylinder heads and or heads with valve seat
inserts which cannot be refaced, are not
suitable
for
the installation of new valve
guides.
2.
Fasten cylinder head with
the
combustion
end facing the mounting
plate.
0
3.
Adjust inclination
of
mounting
plate
to 13 •
4.
Drill out valve guides with a step drill to
a depth of
40
-
50
mm
(drill speed about
100
rpm).
15 - 8
Checking Valve Guides Replacing Valve Guides
Printed in Germany
To Next Page
Loading...
