General
10
TOLERANCES
AND
WEAR
LIMITS
l
The
term
''wear limits" indicates parts which
are
near
or
have already reached
the
dimensions given should
j not
be
reinstalled during an overhaul. When determining the wear
limit
of
pistons and cylinders, the oil
1
consumption
of
the
pertinent engine must be taken into
account.
;
Note:
The
values
are
in mm
if
not otherwise
specified.
Cooling
System
Thermostat • ·
•••••••••••
Opening
temp.
Fan/pulley
•••
':
••••••••
Imbalance
Oil
Circuit
l-OU
p~essure
bSAE
30
oils only)
at
70
C/158
F oil
temp.
at
2500 rpm • • • • • • • • • • Pressure
2-0il
check
valve
spring
compressed length:
39.0
mrn . • • • • • • • • • • • Load
3-0il
pressure control
valve
spring compressed length:
16.8
mm
••••••••••••
Load
4-0il
pressure switch
opens at
• • • • • • • • • • • • Pressure
Cylinder
Head
and
Valves
1-Cylinder
seat
depth in cylinder
2-Combustion chamber
volume
3-a)
Roc)<er
arm
••••••
, •
~
Inside
dia.
b) Rocker shaft
••••.••••
Diameter
4-Valve
springs •
compr.
length
30
••••••••
Load
5-Valve
seats
a)
Intake
••••••••••••
Width
-b)
Exhaust • • • • • • • • • • • Width
c) Intake
••••••••••••
Seat
angle
d)
Exhaust • • • • • • • • • • •
Seat
angle
e) Outer correction
angle
• • •
f)
Inner correction angle •
~
••
6-Valve
guide
Intake
• • • • • • • • • • • • • Inside
dia.
Exhaust • • • • • • • • • • • • Inside
dia.
7-Valve
stem
Intake
• • • • • • • • • • • • •
Diameter
Exhaust • • •
••
•
.•
• • • •
••
Diameter
8-Valve
guide/valve
stem
Intake
+ exhaust • • • • • • • • Side
clearance
9-Valve
head
Intake
• • • • • • • • • • • • •
Diameter
Exhaust • • • • • • •
••••
,
Diameter
10-Valve
clearance
(cold)
Intake
••••
, , • • • • • • • Adjustment
Exhaust
• • • • • • • • • • • • • Adjustment
Printed in Germany
Upon
Install.
(New)
85
-
90°C/185·194°F
max.
5 cmg
approx 64psi
(4.5
atm)
15 - 19 lb
(6.8-8.8
kg)
9.6
lb
(4.35
kg)
2.1-6.4psi
(0,15·0.45atm)
5,4-6.6
3
58.7-60,2
em
20.0-20.02
19.95-19.97
160 -184lb (72.
5-83.
5kg)
1.8
-
2.2
2.0
-
2.5
45°
45°
15°
75°
8,00
-
8.02
9.00
-
9,02
7.
94 -
7.
95
8.91-
8.92
Max.
0,30
42.0
36.0
0.15
0.20
Tolerances and Wear Limits
Wear Limit
28psi
(2
atm)
20.04
19.93
8.06
9,06
7.90
8.87
1.2
10 -
01
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