HEAD DISTRIBUTION
ENG
5
42
5
Apply a rough lapping paste on the contact
surface of the valve.
Apply molybdenum disulphide oil on the valve
stem.
Install the valve in the head.
Rotate the valve until the contact surface and its
seat are evenly polished, then remove all lapping
paste.
ATTENTION
Avoid the lapping paste penetrating in the space
between the valve stem and the guide.
NOTA:
NOTA:
To obtain the best lapping results, slightly spot the
valve seat whilst manually rotating it forwards and
backwards. Figure
Apply a thin lapping paste on the surface contact
of the valve and repeat the above procedure.
After every lapping operation, it is important to
remove every trace of lapping paste from the
contact surface and from the valve seat.
Apply blue colouring (Dykem) for mechanics on
the contact surface of the valve.
Install the valve in the head.
Push the valve inside the guide and against its seat
to leave a well-defined impression.
4
Lappa
Lap:
• the contact surface of the valve
• the valve seat
N
NOTE:
After having replaced the head or the valve and the
relative guide, the seat and the contact surface of
the valve must be lapped.
4
a
b
c
d
C
C
5
e
f
g
h
i
Summary of Contents for 2009 TREK1130
Page 2: ...Workshop Manual 2009 ...
Page 3: ......
Page 9: ......
Page 10: ...GEN INFO 1 ...
Page 12: ...GEN INFO ...
Page 26: ...SPEC 2 ...
Page 28: ...SPEC ...
Page 54: ...CHK ADJ 3 ...
Page 57: ...CHK ADJ ...
Page 157: ...CHAS 4 ...
Page 162: ...CHAS ...
Page 269: ...4 107 ENGINE CHAS ENGINE REMOVAL 1 2 3 4 5 6 8 10 11 9 7 12 ...
Page 321: ...ENG 5 ...
Page 326: ...ENG ...
Page 360: ...HEAD DISTRIBUTION ENG HEAD REMOVAL 5 34 8 9 9 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 3 7 3 5 4 6 ...
Page 377: ...CYLINDERS ENG CYLINDERS REMOVAL 5 51 1 1 2 3 4 4 ...
Page 397: ...ENG CLUTCH REMOVAL 5 71 5 8 9 10 11 12 13 13 14 1 2 3 7 CLUTCH 6 4 15 PM S ...
Page 483: ...COOL 6 ...
Page 485: ...COOL ...
Page 509: ...ELEC 7 ...
Page 512: ...ELEC ...
Page 573: ...ELECTRIC LAYOUT ELECTRIC PLANT 7 61 ELEC ...
Page 579: ......
Page 581: ......
Page 582: ......