length VOLVO 940 1982 Service User Guide

700/940/960 Specifications
Section 2' 8200,8230 Engines
Group 25 Intake and exhaust systems
Turbo engines
'-198~
Engine type .... ; ......... . , ............ .. .............
Charg~ pressure, at full load and ................... r/min
checking
.. ................... kPa (psi)
setting. . . . . . . . . . . . . . . . . . . . .
.. kPa (psi)
Charge air overpressure, switch opens at ....... kPa
(psi)
Charge air pressure, switch closes at ........... kPa (psi)
Tightening torques
4) 18 Nm (13 ft IW)
/
1) Apply sealer PIN 1 161 053-2. 2) Use new nuts
3) Use sealer PIN 1161 035-9.
8200/230 ET
3500
45-53 (6.4-7.5)
50 (7.1)
65-75 (9.2-10.7)
15-25 (2. 1-3.6)
3)
4) Use new boils. If absolutely necessary, old boils can be reused if they
are smeared with sealer PIN 1161053-2.
Mounting bolts, turbocharger -exhaust manifold
• Measure length of bolt. Bolts can be reused if shorter
than
89 mm (3.5 in)
• Apply assembly paste PIN 1 161 078-9 to mating sur-<=;==;=""-~
faces and threads
• Fit new locking plates
•
Tighten bolts in three stages according to below
64
Stage I = 1 Nm (0.7 ft Ib)
II = 45 Nm (33 ft Ib)
III = 45° in one motion without stopping
89mm
135780
~Nm
s::L).Nm
8230FT
3000
46-54 (6.5-7.7)
48-54 (6.8-7.7)
85-95 (12 .1-13.5)
-
136772

70019401960 Specifications
Section'-2" B 28 Engine
Group 21 Engine block
Cylinder head
Max warp:
Maxium warp is
0.05 mm (0.002 in) per
100 mm (4 in) length.
Note: Do not level a warped cylinder head,
replace it!
Cylinder liners
[
Bore, liners marked 1 (A-marked piston) ....................... .
2 (B-marked piston) ....................... .
3 (C-marked piston) ...................... .
Liner height above
block face:
checking (runing engine,
old shims) ....................... .. .
adjusting (new shims)
..................................... .
Pistons
Max weight difference between pistons in same engine .......... .
Piston
float ................................................. .
Piston diameter A-marked pistons
......... .
B-marked pistons
......... .
C-marked pistons
........ .
]
91.00-91.01 mm
91.01-91.02 mm
91.02-91.03 mm
0.14--0.23 mm
0.16-0.23 mm
6 grams
0.020-0.040 mm
90.970-90.980 mm
90.980-90.990 mm
90.990-91.000 mm
3.5826-3.5830 in
3.5830-3.5835 in
5.5835-5.5838 in
0.0055-0.0091 in
0.0063-0.0091 in
0.0007-0. 0015 in
3.5814-:3.5818 in
3.5818-3.5822 in
3.5822-3.5826 in
((0)) t
'" ~L-f
Piston diameter is measured at right-angles to gudgeon pin bore, S mm from bottom edge.
135676
Piston rings
/,
I 111111111 ~III
'--J 115085
Side clearance (measured with ring on piston) ............... mm
in
Ring gap when checked in 91 mm (3.5826 in) cylinder,
Ring gap measured 15 mm
(0.6 in) from lower edge of
cylinder
U 129520 pper
compression
ring
0.045-0.074
0.0017-0.0029
Lower Oil ring
compression
ring
0.025-0.054 0.009--0.233
0.0009--0.0212 0.0003-0.0091
(see fig) ................................................. mm 0.40-0.60 0.40-0.60 0.40-1.45
in 0.0157-0.0236 0.0157-0.0236 0.0157-0.0570 Gudgeon (piston) pins
Clearance in connecting rod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.020-0.041 mm
piston. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.010-0.016 mm
70 0.0007-0.0016
in
0.0003-0.0006 in

70019401960 Specifications
Section
2 B 28 Engine
.. Valve guides are available in three oversizes and are
marked with grooves.
Standard
Oversize 1
Oversize 2
Oversize 3
129865
Valve springs
115083
Rocker arm mechanism
Marking Reamer
No groove
1 groove 5166
2 grooves 5167
3 grooves 5168
Springs marked green
Length
mm
in
47.1 1.85
40.0 1.57
30.0 1 .18
Load
N
o
230-266
613-689
The rocker arm tips are surface hardened and must not
be
ground.
lb.
o
52-60
137-154
Clearance. shaft-rocker arm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.012-0 .054 mm (0.0005-0.0021 in)
Timing gears
Camshaft
Engine type ............................. B28A, E B28F
Left
Right
Marking ................................. F
F
Part number
(last three digits).
early type ............................... .. .615 . . .616
late type ................................ . .. 977 .. .978
740~
Letter
B28A, E B28F
Max lobe lifting height. left and right. inlet ...................... .
exhaust. .
................ "
5.96 mm (0.2348 in) 5.44 mm
5.96 mm (0.2348 in) 5.94 mm
Checking camshaft settings (cold engine):
adjust
valve clearance on 1 st and 6th inlet valves to .......... . 0.7 mm (0.0275 in) 0.7 mm
The inlet valves should then open at:
Left
G
... 486
. . .979
1 st .................................................... . 8±3° B.T.D.C. 1 ±3° B.T.D.C.
6th .. ,
................................................. . 8±3° B.T.D.C. 1 ±3° B.T.D.C.
Journal clearance ........................................... . 0.035-0.085 mm
(0.0013-0.0033 in)
End play, new .............................................. . 0.070-0.144 mm
(0.0027-0.0056 in)
max .............................................. . 0.5 mm
(0.0196 in)
72
Right
G
... 487
... 980
(0.2142
in)
(0.2339 in)
(0. 0275 in)

70019401960 Specifications
Section
2 B 28 Engine
Cylinder head
Tighten all bolts in stages:
1 Tighten
bolts to 60 Nm (43 ft Ibs) 2 a Loosen bolt 1, tighten it to 20 Nm (15 ft Ibs) b Angle-tighten to 106 degrees using special tool 5098. Repeat this for remaining bolts in sequence shown.
118650
Tightening sequence for cylinder head bolts
L~~::~:~' ~I ~: I I I I
i61I~-
c Loosen and tighten each bolt in turn.
3 Adjust valves.
4
Warm-up engine.
5 Allow engine to cool for 2 hours.
6 Angle-tighten each bolt a further 45 degrees
Main bearings
Tighten all nuts in stages:
1
30 Nm (22 ft Ibs) 2 Slacken nut 1 3 Tighten nut 1 30-35 Nm (22-26 ft Ibs) 4 Angle-tighten nut 1 73°_77 °
1111-
i@1lf11 -
5 Slacken and retighten the other nuts in the order specified in stages 2-4.
---,---,---,---,-115091
Tightening sequence for main bearings (via lower crankcase)
Group 22 Lubricating system
General
Oil capacity and quality, see page 12.
Oil pressure, warm engine new oil cleaner:
at 15 rls (900 r/min), minimum .............................. .
50 rls (3000 r/min) .......... ....... ......... ............ .
Lubricating oil pump
End float ................................................... .
Clearance between tooth tip and pump housing wall (excl.
bearing clearance) .......................................... .
Backlash (excl bearing clearance) ................ ............. .
Bearing
clearance, driveshaft ................................. .
idler shaft. ................................ .
Relief valve spring, length under various loads:
unloaded
................................................. .
loaded to 88.3 N (8.83 kp) ............ ... .... .............. .
74
0.1 MPa
0.4 MPa
0 .
025-0.084 mm
0.110-0.185 mm
0 .17-0.27 mm
0.015-0.053 mm
0.015-0.051 mm
89.5 mm
56.5-60.5 mm
(14.2 psi)
(57 psi)
0.0009-0.0033 in
0.0043-0.0072 in
0.0066-0.0106 in
0 .0006-0.0021 in
0.0006-0.0020 in
3 .52 in
2.22-2.38 in

70019401960 Specifications
Section
2 B 28 Engine
Group 25 Intake and exhaust systems
LAMBDA-SOND SYSTEM (B28F ONLY)
Control unit
135 202
Lambda-sond
82
Bosch No . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 050
Volvo PIN ............................... 1 274368-8
Duty cycle
disconnected sand. . . . . . . . . . . . . . . . . . . . . . . . .
42-48°
grounded thermal switch . . . . . . . . . . . . . . . . . . .. 51-57°
grounded microswitch* ..................... 51-57"
grounded pressure differential switch .......... 82°~
* B 28 F USA 1983 models designed for high altitude use:
microswitch must be disconnected at all times.
Bosch No . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 037
Volvo PIN ..................... .......... 1 274367-0
Tightening torque. . . . . . . . . . . . . . . . . .. 55 Nm (40 ft Ib)*
* Apply 'Never-Seez' PIN 1 161 035-9 to entire thread length.

(
70019401960 Specifications
Section
2 B 280 Engine
Group 21 Engine block
Cylinder head
Max warp:
Maximum warp is 0.05 mm (0.002 in) per
100 mm (4 in) length.
I
[
Note: Do not level a warped cylinder head,
replace it!
n~Ql;J 129860
Cylinder liners
Bore liners marked 1 (A-marked piston) ........................ .
2 (B-marked piston) ....................... .
3 (C-marked piston) ....................... .
Liner height above
block face ................................. .
Shims for adjustment of liner height:
thickness, orange paint marking
............................ .
white paint marking
.............................. .
blue paint marking ............................... .
Pistons
Max weight difference between pistons in same engine .......... .
Piston
float ..................................... ............ .
Piston diameter, A-marked pistons
........ .
B-marked pistons .
....... .
C-marked pistons
........ .
91.00-91.01 mm
91.01-91.02 mm
91.02-91.03 mm
0.14-0.21 mm
0 .098-0.134 mm
0.118-0.154 mm
0.138-0.194 mm
6 grams
0.070-0.090 mm
90.920-90.930 mm
90.930-90.940 mm
90 .940-90.950 mm
(3.5826-3 .5830 in)
(3.5830-3.5835 in)
(3.5835-3.5838 in)
(0.0055-0.0083 in)
(0.0039-0.0053 in)
(0. 0046-0.0061 in)
(0.0054-0.0076 in)
(0.0028-0 .0035 in)
(3.5822-3.5826 in)
(3.5826-3.5830 in)
(3.5830-3.5834 in)
((0)) t
~ ~~ Piston diameter is measured at right-angles to gudgeon pin bore, 13 mm (0.512 in) from bottom edge.
135676
Piston rings
Side clearance (measured with ring on piston) .. ............ . mm
Ring gap measured 13 mm (0.51 in)
from
lower edge of cylinder
Upp er Lower Oil ring
com pres-compres-
sion ring sion ring
0.045-0.
074
0.025-0.054 0.009-0.233
in
Ring gap when checked in 91 mm (3.5826 in)
. 0.0017-0.0029
0.0009-0.0212 0.0003-0.0091
(cylinder,
see fig) ..................................... .... mm
Gudgeon (piston ) pins in
0.40-0.60 0.40-0.60 0.40-1.45
0.0157-0.0236 0.0157-0.0236 0.0157-0.0570
Piston. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.007-0.017 mm (0.0003-0.0007 in)
87
"' lit ill lit ·,11 tit ill, til Itil

(
70019401960 Specifications
Section
2 B 280 Engine
Valve guides are available in three oversizes and are marked with
grooves .
129865
Valve springs
Standard
Oversize 1
Oversize 2
Oversize 3
115083
Rocker arm mechanism
Marking
No groove
1 groove
2 grooves
3 grooves Reamer
5166
5167
5168
Spr ings marked green
Length
mm in
47.1 1.85
40.0 1.57
30.0 1.18
N
o
230-266
613-689
The rocker arm tips are surface hardened and must not be ground
Load
Ibs.
o
52-60
137-154
Clearance, shaft-rocker arm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.012-0.054 mm
Timing gears
Camshaft
(0.0005-0.0021 in)
~
--~
Engine type ............................. B280E B280F
Left
Right Left
Right
Marking
........................... ...... R R S S
Colour
code ...... ... .................... White
White Green Green
Part number (last three digits)
.............. ... 957 ... 959 . .. 958 . .. 960
1
32608
B280E B280 F
Max lobe lifting height . left and right. inlet
...................... .
exhaust
........... ' " ... .. . 6.08
mm (0.
2396 in) 5 .96 mm (0.2348 in)
5.85 mm (0.2305 in) 5.43 mm (0.2139 in)
Checking camshaft settings (cold engine) :
adjust valve clearance
on 1 st and 6th inlet valves to .......... .
The inlet valves should then open
at:
1st ...... .................... .......................... .
6th . ................................................... .
Journal clearance
............................... ............ . 0.7
mm (0.0275 in) 0.7 mm (0.
0275 in)
4.50 B.T.D.C. 5 0 B.T.D.C .
4.50 B.T.D.C. 5
0 B.T.D.C.
0 .035-0.085
mm
(0.0013-0.0033 in)
89
III .. III .. III ... III ·11 III

70019401960 Specifications
Section 2 B 280 Engine
Group 22 Lubricating system
General
Oil capacity and quality, see page 12.
Oil pressure, warm engine , new oil cleaner:
at 15 rls (900 r/min), minimum. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 MPa
50 rls (3000 r/min). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.4 MPa
Lubricating oil pump
End float ...... ........................ ..................... .
Clearance between tooth tip and pump housing wall (excl.
bearing clearance) .
......................................... .
Backlash (excl. bearing clearance) ............................ .
Bearing clearance , driveshaft ....
............................. .
idler shaft ................................. .
Relief valve spring, length under various loads:
unloaded
..................... ................. ........... .
loaded to 90 N (9.0 kp) .................................... .
92
0.025-0.084 mm
0.020-0.095 mm
0.17 -0.27 mm
0.015-0.053 mm
0.015-0.051 mm
89.5 mm
56.5-60.5 mm
(14.2 psi)
(57 psi)
(0.0010-0 .0033 in)
(0.0008-0 .0037 in)
(0.0066-0 .0106 in)
(0.0006-0 .0021 in)
(0.0006-0.0020 in)
(3.52 in)
(2.22-2.38 in)

(
Cylinder block
Bore
Standard (marked C)
........................... ....... mm (in)
(marked
D) ........... ....................... mm (in)
(marked
E) .................................. mm (in)
(marked
G) ................... . .............. mm (in)
Rebore if wear exceeds 0.1 mm and oil consumption is abnormally high.
Pistons
Piston diameter
Diameter to be measured at right
angles to gudgeon pin and
16 mm from bottom of piston.
Standard (marked C)
.................................. mm (in)
(marked
D): ................................ . mm (in)
(marked
E) .. , ........................ ....... mm (in)
(marked
G) ............ ...................... mm (in)
Piston weight
.......................................... g (oz)
Max weight difference between pistons in same engine
......... g
Piston rings
Axial clearance in piston groove ............................ mm
in
Ring gap (measured in cylinder, bore 83.00 mm) ............. mm ? in
Gudgeon (P iston ) pins
Fit in connecting rod ......................................... .
in piston
................................................ .
Valve system
Hydraulic
Valves
Length inlet ...... .................................... mm (in)
exhaust
.............. ......................... mm (in)
Matching surface
angle .................................. .... 0
Edge height, new valve ................................ mm (in)
min after machining .
...................... mm (in)
Max machining of
valve stem ................ ........... mm (in)
Valve Seats
Diameter standard .................................... mm (in)
oversize
.... ................................ mm (in)
Matching surface
angle .......................... ............ 0
Reduction angle, upper ...................................... 0
lower ................. ....... .............. 0
Width ...................................... ... ...... mm (in)
70019401960 Specifications
Section 2 B 6304 Engine
83.00-83.01
83.01-83 .02
83.02-83.03
83.04-83.05
82.98--82.99
82.99--83.00
83.00-83.01
83.02 -83.03
350
± 5
10
(3.2677-3 .2681 )
(3.2681-3.2685)
(3.2685-3 .2689)
(3.2693-3.2697)
(3.2669--3.26 7
3)
(3.2673-3.2677)
(3.2677-3.
2681 )
(3.2685-3.2689)
(12.5 ±
0.2)
(0.4)
Upper
camp. rings
0.05-0.085
0.0020-0.0033
0.2-0.4
0.008--0.016
Lower
camp. rings
0.03-0.065
0.0012-0.0026
0.2-0.4
0.008--0.016
Oil scraper
ring s
0.02-0.055
0.0008 -0.0022
0.25-0.5
0.009--0 .020
Light thumb pressure (close running fit)
Thumb pressure (push fit)
104.05±0.18
103.30±0.18
45.5
1.5
1.2
0 .4 (4
.
096±0.007)
(4.067±0. 007)
(0.059)
(0.047)
(0.016)
inl et exhaust
32.61 (1.284) 28.61 (1.126)
33.11
(1.304) 29 .11 (1.146)
45.25 45.25
20.25 15.25
60.25 60.25
1.4-1.8 (0.055-0.071) 1.8--2.2 (0.071-0.087)
99
Itl
It
Itl
.... 1 '11 Itl ... Itl

70019401960 Specifications
Section 2 B 6304 Engine
Valve Guides
Diameter standard .................................... mm (in)
oversize 1
................................... mm (in)
oversize 2
...................... ............. mm (in)
Clearance, valve stem-guide (measured with new valve) ... mm (in)
Min .
................................................ mm (in)
Valve Springs
External diameter ..................................... mm (in)
Internal diameter ...................................... mm (in)
Length at
270 ± 15 N ................................. mm (in)
Length at
670 ± 32 N ................................. mm (in)
Timing gear
Cams haft
Marking
Inlet ..................................................... .
Exhaust
.................................................. .
Max
lift height ................... ..................... mm (in)
Axial clearance ....................................... mm (in)
Crankshaft assembly
Crankshaft
Max out-ol-true ...................................... . mm (in)
Axial clearance ....................................... mm (in)
Radial clearance (main bearings) ....................... mm (in)
Main bearing journals
Diameter ............................................ mm (in)
Out-ol-round, max
.................................... mm (in)
Connecting rod bearing journ als
Diameter ................................... ......... mm (in)
Out-aI-round, max
.................................... mm (in)
Connecting rods
Axial clearance at crankshaft ........................... mm (in)
Tightening torques
Tightening torques apply to oiled nuts and bolts. Degreased
(washed) parts must
be oiled prior to assembly.
Cylinder
head (stage 1) .............................. Nm (ft Ib)
(stage 2) .............................. Nm (ft Ib)
(stage 3) angle -tightening ....................... 0
Bolts should be tightened in sequence Irom center towards ends .. .
Middle section M 10 (stage 1) ........................ Nm (ft Ib)
M 10 (stage 2) ........................ Nm (ft Ib)
M 8 (stage 3) ........................ Nm (It Ib)
M 7 (stage 4) ........................ Nm (It Ib)
M 10 (stage 5) angle -tightening ................. 0
Bolts should be tightened in sequence Irom center towards ends.
100
inlet
12.00 (0.4724)
12.1 (0.4764)
12.2 (0.4803)
0.06 (0.0024)
0.03 (0.0012)
27.90±0.20
20.10±0.20
34.00
24.50
PC I
PC E
9.00 0.05-0.20
0.004
0.08-0.19
0.024-0.047
65.00 0.004
50.00 0.004
0.15-0.45
20
60 150
20±2
45±4
24±4
17±3
90
exhaust
12.00 (0.4724)
12.1 (0.4764)
12.2 (0.4803)
0.06 (0.0024)
0.03 (0.0012)
(1.098±0.008)
(0.791 ±0.008)
(1.339)
(0.965)
(0.354)
(0.002-0.008)
(0. 00016)
(0.003-0.0075)
(0.00094-0.0019)
(2.559)
(0.00016)
(1.969)
(0.00016)
(0.0059-0 .0177)
(15)
(44)
(15±1.5)
(33±3)
(18±3)
(12±2)