Volvo D20 - Page 9

Specifications
1~· (OoO~r00105 mm)
Notel When replacing "al"e seats: the interference between
the
"al"e seat and its bare in the cylinder head shall be 0.074-
0.105 mm (0.029-0.041 ini. That is. "a l"e seat diameter must be
0.074-0.105 mm greater than the diameter of the bore in the
cylinder head.
- ......
Valve guides mm (ini :-.
Length ... ...................................................... ... ............................ .
Inner diameter ........................................................................... .
Height
abo"e cylinder head lower surface .............................. ..
Clearance, "al"e stem-guide (see fig.l. new ............................ ..
max ............................. .
Clearance is measured
with new "al"e and with "al"e stem
flush
with "al"e guide.
Valve springs
Inner valve springs
Load
N
Ib,
36.50-36.75 (1.4370-1.4468)
8.000-8.015 (0.3 149-0.3155)
40.1 -40.5 (1.5787 -1.59 44)
0.3 (0.018)
1.3 (0.0511)
Outer valve springs
Load
In N
OO M
Ib,
Length
mm
33.9
28.6
18.3
In
1.334
1.126
0.720
O
67-77
209-231
O
15-17.5
47-52.2
Length
mm
40.2
32.6
22.3
1.583
1.283
0.878
O
167-185
433-479
O
38-42
98-108
Tappets
Diameter ........................................................................... .. .
Height ........................................................................................
..
Clearance. sh im -tappet ............................................................. .
tappet-cylinder head ............................................... .
Shims (for adjusting "al"8 clearance)
Thickness .................................................................................. .
Diameter .................................................................................... .
34.950-34.975 (1.3759-1.3769)
28.0-28.8 (1.1023-1.1388)
0.016-0.046 (0.0006-0.00 18)
0.025-0.075 (0.0010-0 .0029)
3.00-4.25 mm at increments of 0.05 mm
0.118-0.167 at increments of 0.002 in
30.950-30.975 (1.2185-1.2194)
7