Specifications
VALVE SYSTEM
Valve clearances
D20
Intake
va
lve,
warm
engine
.......................................... .
c
old
engine
............................................ .
Exhaust
valve,
warm
engine
.....................
...
............... .
cold
engine
......................................... .
Shims, thickness ......................................................... .
VIIyes
7.97
mm
= 0.3137
in
36
mm
- 1.417
in
0.5
mm
= 0.020
in
7.97 mm
.
(tlJ)
---..I~~I-_mi".
0.5
mm
Vllye
seats
32.8
mm
"" 1.2193
in
1.5
mm
= 0.0590
in
2.0
mm
==
0.787
in
Intake Yllye
,
32.8
nm
Intake
YI
lye
selt
,331,
.
\33J!.II
Cold engine =
engine
at
r
oo
m
temperature
= intake valves
A
= exhaust valves
Checkladjust valves in foll
owing
order:
0 20 = '-2-4-5-3
024
= ' -5-3-6-2-4
Checking
Setting
mm
;"
mm
0.20-
0.30
0.
008-0.012
0.25
0.1
5-
0.25
0.006- 0.010
0.20
0.40-0.50
0.016-0.020
0.45
0.35-0.45
0.014-0.018
0.40
3.00-4.25
at
increments
of
0.05
mm
0.012-0.167
at
increments
of
0.002
in
7.95
mm
= 0.3129 in
31
mm
'"
1.22 in
45'
7.95 mm
Exhaust
y.lye
;n
0.010
0.008
0.018
0.Q16
131115
Importanti
Exhaust valves are stellite coated and
must not
be
ground
by machine. Grind-in valve on
seat
with
grinding
paste.
30.4
mm
= 1.1968 in
1.5
mm
= 0.0590 in
2.4
mm
= 0.094
in
30
.4
nm
Exhlust
y.lye
selt
1:13159
Exhaust
Valve seat
diameter
,
standard
............................................
mm
Intake
37.090-37.105
1.4602
-1.
4608
37.
290-37.305
1.4681- 1.4687
33.090-33.105
1.3027-1.3033
33.290-33.305
1.3106-1.3112
oversize 1
..
........................................
mm
Seat
width
in
cylinder
head:
diameter, standard ..............................................................
mm
oversize 1 .......................................................
...
..
mm
;n
6
37.000-37.016
1.4566-1.4573
37.200-37.216
1.
46
45-
1 .4651
33.000-33
.016
1.2992-1.2998
33.200-33.216
1.
3070-1.3071
•
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