
70019401960 Specifications
Section
2 024, 024 T, 024 TIC Engines
Crankshaft
Max1
) runout, two centre bearings ............................. .
others
........................................ . .
Crankshaft, end
clearance, new ............................... .
max .
.............................. .
main bearing
clearance, new ....... ............... .
max
....................... .
Connecting
rod bearings, side clearance, max .................. .
bearing
clearance, max ............... .
new
............... .
l)Measured with two outer main bearings in V·blocks.
Main bearing journal s
Out of round, max ........................................... .
Taper, max
................................................. .
Diameter, standard .
.................................... ..... .
undersize 1 .
...................................... .
2 ....................................... .
3 ......................... .............. .
Con necting rod bearing journ als
Out of round, max ........................................... .
Taper, max
................................................. .
Diameter, standard
.......................................... .
undersize 1
....................................... .
2
....................................... .
Con necting rods
Only to be replaced in sets.
0.06 mm 0.0023 in
0.04 mm
0.07-0.18 mm
0.25 mm
0.016-0.075 mm
0.16 mm
0.0015 in
0.0027-0.0071 in
0 .0098 in
0.0006-0.0029 in
0.0062 in
0.4 mm 0.0157 in
0.12 mm
0.015-0.062 mm
0.0047 in
0 .0005-0.0024 in
0.03 mm 0.0012 in If ~ 0.05 mm 0.0020 in
58.00 (57.955-57.975) mm
2.2834 (2.2816-2.2824) in -+ +-) 57.75 (57.705-57.725) mm
2.2736 (2.2718-2.2726) in
57.50 (57.455-57.475) mm t
2.2637 (2.2620-2.2627) in 57.25 (57.205-57.225) mm Out of round 115089
2.2539 (2.2521-2.2529) in
0.03 mm 0.0012 in
0.05 mm 0.0002 in
47.80 (47.758-47.778) mm
1.8818 (1.8802-1.8810) in
47.55 (47.508-47.528) mm
1.8720 (1.8703-1.8711) in
47.30 (47.258-47 .278) mm
1.8622 (1.8605-1.8613) in Taper
Side clearance on crankshaft, max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.4 mm 0.0157 in Max. weight deviation between connecting rods in same engine. . . 6 grams
Flywheel
Warp, max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05 mm at 150 mm diameter
0.0019 in at 5.90 in. diameter
112

(
70019401960 Specifications
Section
2 024, 024 T, 024 TIC Engines
Tig ht enin g to rqu es
Tightening torques apply to oiled bolts and nuts. Oegreased (washed) parts should be oiled prior to assembly .
I' ~ ~ 0 8 CD 0 (IJ
#' ~ G e Q e Q GJ
128149
Tighten
sequence for cylinder head bolts
Note: Loosen the bolts in the reverse order when removing the cylinder head.
R etorquing of cylinder head bolts
Retorque after 1 000-2000 km (600-1200 miles). The en
gine
should be cold or almost cold.
Tighten each bolt separately in correct sequence (see
above
illustration).
Tighten bolt 90°. Note: This should be done in one move
ment without stopping.
Bolts should not be slacken ed
first.
Crankshaft
pulley (vibration damper) Ti
g
hten cylinde r h ea d bolts in stages
Remove oil and dirt from bolt holes. Oil left in holes will
reduce the pressure on the cylinder head gasket.
Bolt threads and washers must however be oiled, other-
wise
frictional forces will be too large.
Use new bolts .
Tighten in six stages in sequence shown above
Stage 1 = 40 Nm (30 ft Ib)
2 = 60 Nm (44 ft. Ib)
3 = 75 Nm (55 ft. Ib)
4 = tighten 180°. Note: This should be done in
one movement without stopping .
5
= run engine until oil temperature is at least
+50°C (112°F).
6 = tighten 90°. Note: This should be done in one
movement without stopping
Nm
ft lb.
center bolt1) ............................... ............... . 350 258
Allen bolts ..... :: ......................................... . 20 15
Flywheel (use new bolts and locking fluid,
Volvo PIN
277 961-9) ............................... .
75
55
Camshaft gear, front
......................................... .
45
33
rear
....................................... .. . 100 74
Camshaft bearing caps .................................... .. . 20 15
Main bearing caps .......................................... .
65 48
Connecting rod bearing caps (use new nuts)
................... .
45
33
1) Tightening torque 350 Nm (258 ft. lb.) applies when using special tool 5188.
5187
G lo w plugs
Threads and bolt head contact surface to be smeared with locking compound (Volvo PIN 277961-9).
If a torque wrench is used directly on the centre bolt (without 5188), the bolt must be tightened to 450 Nm (332 ft. lb.) .
PIN.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 257889-4
Tightening
torque. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Nm (16 ft Ib)
113
'il IN 11 '11 11
·11 III

(
780 1988
Fu se Circuit protected
No.
Rating
1 Main fuel pump ........................... 25 A
2
Central locking, system, hazard
warning
lights, rear fog lamps ................ 25 A
3 Dipped beams, rear
foglamps ............... 15 A
4 Brake
lights .................. ............. 15 A
5
Glove compartment lighting, clock, .......... 15 A
radio, engine compartment
lighting,
interior lighting, boot lighting,
electric aerial,
door courtesy
lights, vanity mirror
6
Electrically-heated front seats ............... 30 A
7
Electronic climate control (ECC) ............. 30 A
8
Electric window winders .................... 30 A
9
Seat belt reminder , direction ................ 15 A
indicators, air conditioning ,
electrically-heated front seats,
electric window winders
10 Electrically-heated rear window, ............. 30 A
electrically -heated rear-view
mirrors,
electric sun roof
11 Fuel pump (tank pi.Jmp), .................... 15 A
electrically-heated oxygen sensor
(Lambdasond)
(B 280 F)
12 Reversing lights, cruise control .. ............ 15 A
ignition on, automatic
transmission disengagement
13 Automatic idling controls ................... 15 A
70019401960 Specifications
Section
3 Electrical System
780 1988
Fu se Circuit protected
No. Rating
14 Power rear-view mirrors, .................... 15 A
cigarette
lighter, radio, heater fan,
air conditioning
15 Horn, windscreen wipers, windscreen ........ 25A
washers
16
17
LH main beam ............................ 15A
18 RH main beam , supplementary main beam ... 15 A
19 LH dipped beam ............. ............. 15A
20 RH dipped beam .......................... 15 A
21 LH parking lights, front and rear, ............ 15 A
number
plate light. Illumination of
ashtray, heater
controls, rear window
heater switch,
electric sunroof switch.
Illumination of instruments and
switches to
left of steering wheel
22 Illumination of seat belt locks ............... 15 A
RH parking lights, front and rear.
Illumination of storage pocket between
front seats.
Supplementary main beams .
23 Relay, power seats ................ .... .... 15 A
24 Power passenger seat .................. ... 30 A
25 Rear fog lamps (USA/CON) ................. 15 A
26 Power driver's seat ................... .. .. . 30 A
N.B. The system also includes a 10 A fuse for the ABS
(anti-lock
braking system) function. This is incorporated in
the transient surge protector at the pedal mounting.
133
·,f' "'I .", '" .",
'" .",
'" .",

70019401960 Specifications
Section
3 Electrical System
780 1989-1990
Fuse Circuit protected
No. Rating
1
2
3
4
5
6 7
8
9
10
11
12
13
134 Main
fuel pump ........
. .................. 25 A
Central lock, hazard warning lights, main
beam
flash ....... ........................ 25 A
Foglights, front & rear ...................... 15 A
Brake
lights, power boot (trunk) release ...... 15 A
Glove box light, clock, radio engine compo
light, courtesy light, boot light, power radio,
door open warning
lights, vanity mirror light,
door instep light, central lock relay ........... 15 A
ECC
..................................... 30A
ECC heater fan
Heated front seats
......................... 30 A
Power windows
............................ 30A
Fasten seat belt reminder , turn signals,
heated front seats, power windows .......... 15 A
Heated rear window, heated door mirrors,
power sunroof
.............. ............... 30 A
Fuel tank pump, heated Lambdasond
(B 280 F, B 230 FT) ......................... 15 A
Reversing (back-up)
lights, cruise control,
15-circuit card in central electrical unit,
overdrive
.......... ....................... 15 A
Glow plugs (diesel), fuel valve (diesel),
boost pressure limiter (turbodiesel) , electric
cooling
fan ................................ 15A
780 1989-1991
Fuse Circuit protected
No.
14 Power door mirrors, cigar lighter,
radio, reading lamps (rear), ECC, power fuel
Rating
tank flap release .......................... 15 A
15 Horn, windscreen wash/wipe, headlight
wiper, power front seats .... ................ 25 A
16
Amplifier , front ............................ 15 A
17 Main beam
(left), indicator lamp main beam .. 15 A
18 Main beam (right), fog
light. ................. 15 A
19 Dipped beam,
left ......................... 15 A
20 Dipped beam, right .
....................... 15 A
21 Parking lights (left), front & rear,
numberplate light, lighting for: ashtray
(front), heater
control panel switch, heated
rear window switch, power sunroof switch,
instrument
lighting & switches to left of
steering
wheel ...... ...................... 15 A
22 Parking
lights (right), front & rear
Relay, front & rear foglights, auto.
trans
selector panel light, lighting for:
heated front seat switches, storage box
between front seats, rear ashtray
........... 15 A
23
Relay, power front seats (1989)
Amplifier, rear ......................... 15 A (25)
24 Power driver seat
.......................... 30 A
25 Rear
foglight (USA/CON) ................... 15 A
26 Power passenger seat
..................... 30 A
Additional fuses
ABS: one 10 A fuse incorporated in the transient surge pro
tector at the
pedal mounting
Radio
amplifier (front & rear); two 30 A fuses next to battery
(not
Italy)
B 230 FT high output: one 10 A fuse mounted on left sus
pension tower

70019401960 Specifications
Section 4 Power Transmission
Automat ic transmission BW 55
Make and type .. ............................................ .
Reduction ratios, 1 st gear ..
................. ................. .
2nd gear
................................... .
3rd gear
................... ................. .
Reverse
.................................... .
Torque converter, type ratio
................................ .. .
Lubricant.
........................... ....................... .
Fluid capacity .................... ........................... .
* ATF = automatic transmission fluid.
1.45:1 x Converter ratios
Borg
Wirner type
55
2.45 :1
1 : 1
2.21 : 1
1-approx 2:1
ATF, type G (or F)*
6.9
litres = 7.2 US qts (inc!. approx 2.5 litres = 2 .6
US qts in torque converter)
.~ Engine type Normal
stall speed*
rls (r/min)
Type
designation
Type plate
colour
....... WAOIIHUH
55 e:> ~~D ~~~I~ f'"OUTUTAUS
B28A 38.3 (2300) 029 SERIAl~ Light brown 131755 * At sea level.
Stall speed drops 2 rls (120 rpm) for each 1000 m increase in altitude .
Throttle cable setting
Distance between adjusting sleeve and stop
at idling .................................................. .
kick -down
........................ ........................ .
C leara nces
Oil pump: pump body -outer cog wheel ....................... .
arc segment -
large cog wheel ...................... .
axial clearance .................................... .
Clutch C2, brakes B1 and B2:
clearance between
clutch assembly pressure plate and
locking ..................................................... .
Input shaft, clutch C1 axial clearance .......................... .
Output shaft,
axial clearance ................................. .
Line pressure
Idling D .................................................... .
R ..................... .... ........................... .
Stall speed, D .................. .............. ...... ........ .
R .............................................. .
140 0.25-1
.0
mm 51 +1.6mm -0.6
0.07-0.30 mm
0.11-0 .50 mm
0.02-0.10 mm
0.3-1 .2 mm
0.20-0 .55 mm
0.20-0.55 mm
(0.001-0.040 in) (2 +0.63 in) (-0.024Ih)
(0.0027-0.118 in)
(0.004-0 .019 in)
(0.0008-0.004 in)
(0.0118-0 .0472 in)
(0.0078-0.0216 in)
(0.0078-0.0216 in)
0.53-0.63 MPa (75-90 psi)
0.74-0.91 MPa (105-129 psi)
1 .12 -1.37
MPa (159-195 psi)
1.54-1.96
MPa (219-279 psi)

(
Throttl e cable se tting
Distance between adjusting sleeve and cable stop
at idling .............................. mm 0.25-i.O
(in) (0. 001-0.040)
kick-down ............. .... mm 50.4-52.6 (1.99-2.1)
Sol e n o id va lv e
Resistan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 0
C lea ra n ces
Oil pump : pump body -outer gear wheel. ............... mm (in)
arc segment -large gear wheel ...................... mm (in)
axial clearance ................................ ..... mm (in)
Brake BO: clearance between clutch pressure plate
and lock ring ....................................... mm (in)
Clutch C2, brakes B1 and B2
clearance between clutch assembly pressure plate
and lock ring ....................................... mm (in)
Input shaft, clutch CO, axial clearance ........... ... ..... mm (in)
Output shaft, axial clearance ................. .......... mm (in)
B ra ke a nd clutch ring s
0.07-0.15
0 .
11-0.14
0 .
02-0.05
0.35-1.60
0.3--1.2
0 .
3--0.9
0.3--0 .9
Minimum permissible thickness ..................... .... mm (in) 2.1 mm
Line pr ess ure
Engine Tra nsmi ssion Press ure, 0
MPa (psi)
B
19/200 ElF AW70 0.35-0.44
(50--63)
B23E AW71 "
B230K -1986 AW71 "
B200K, B230F AW70 0.46-0.54 (65-77)
B23/230FT AW71 "
B 230 A
, B 230 FB AW71 "
B230K 1987-AW71 "
B28A, E, F AW71 "
B234 FIG AW72 0.44-0
.52 (63--74)
B280
AW71 0.51 (73)
S tall spee d press ure
Engine T
ra n smi ssion Press ure, 0
MPa (psi)
B
19/200 E AW70 1.00--1.20 (142-205)
B23E AW71 "
B230K -1986 AW71 "
B 200 K, B 230 F AW70 1.00--1.20 (142-205)
B23/230 FT AW71 "
B 230 A, B 230 FB AW71 "
B230K 1987-AW71 "
B28A, E, F AW71 "
B234 FIG AW72 1.12
-1.32 (159-188)
B280 AW71 1
.15 (164)
7001940 1960 Specifications
Section
4 Power Transmission
025-10mm
(0.003 -0 .006)
(0.0043--0 .0055)
(0.0008-0.0019)
(0.0138-0.0629)
(0.0118-0.0472)
(0.0118-0.0354)
(0.0118-0 .0354)
(0.083)
Pres sur e, R
MPa (psi)
0.50--0 .64 (71-91)
"
"
0.70--0.82 (106-117)
"
"
"
"
0.64-0.76 (91-109)
0 .
77 (110)
Press ure, R
MPa (psi)
1.37-1.70 (195-242) "
"
1.50--1.90 (213-270)
- -
"
"
"
1 .55-1.95 (220--277)
1 .
74 (247)
-
143
I
I
I
I

(
70019401960 Specifications
Section
4 Power Transmission
Tig ht enin g to rqu es
Nm ftlb
Drive plate-torque converter M 8 ................ .............. . 17-27 12-20
M10x 1.25 ......... .............. . 41-50 30-36
Torque converter -engine, M 10 .............................. . 35--50 25--36
M12 ........................ ...... . 55--90 40-65
Valve body -transmission gearcase ....................... .... . 7-9 5--6.5
Plate above parking detent ............ ............ ........... . 9--11 6.5--8 .0
Rear case -gearcase .............................. ......... . 20-26 14-19
Strainer - valve body -gearcase ................ ............ . . 7- 9
5--6.5
Governor -balance -pawl .......... ......................... . 9--11 6.5--8.0
Oil pump -separator plate .................. ................ . . 9--11 6.5--8 .0
B 4 cylinder -gearcase ...................................... . 9--11 6.5--8 .0
Plug -separator plate, M 14 .................................. . 34-46 25--33
M20 ....... ................ ...... ..... . 43- 57
31-41
Torque converter casing -separator plate -gearcase ........... . 40-52 29-38
Oil pan -gearcase .......................................... . 7-9 5--6.5
Drive plate -output shaft .................................... . 85--115 61-83
Blind plug, oil pan .................... ................. ...... . 13-17 9--12
Oil filler tube -oil pan ....................................... . 85--115 61-83
Group 45 Propeller shaft
/'
Tightening torque, flange bolts,
steel
joint M 8 ....................... ...... ..............•..
M10 ......................... .. ................ .
rubber joint ...................................... ......... . *Use service kit 9122130-9, socket 9995381 -2
ikd@
1 39 137
30 Nm (22 ft Ibs) + angle-tighten 60°*
50 Nm (36 ft Ibs)
80 Nm (58 ft Ibs)
Group 46 Rear axle
Rear axle , 740 , 760* , 780 -1987, 940 , 965
Reduction ratio ...................................... ....... . 3 .31:1, 3.54:1 , 3.73:1, 3 .91:1, 4 .10 :1 Axial throw, crown wheel ..................................... . Max 0.08 mm Max . 0.003 in Backlash ... ................................................ . 0 .12-0.18 mm 0 .004-0.007 in Preload torque, pinion bearings, new .......................... . 2.5--3.5 Nm 1.8-2.5 Ibs used ...... ... ................ . 1.8-3.4 Nm 1.3-2.5 Ibs
Preload, differential bearings ................................. . 0 .05--0 .08 mm 0.0019-0 .0032 in Clearance , speedometer sensor -pulse wheel .... .. ........... . 0 .5--1.2 mm 0 .020-0.047 in Radial runout outer diameter, pulse wheel ........ : .. : ......... . Max . 0.3 mm Max . 0.0118 in Lubricant ....... . ........................................... .
See page 9
*1988--only 5- doors.
151
III 1 .... 1 III ·111 III ·111 III ·111

70019401960 Specifications
Section
4 Power Transmission
Tightening torqu es
Pinion drive flange, pinion with spacer .......... ........ ....... .
pinion with compression
sleeve ' ............ .
Differential bearing caps .............................. ...... . .
Crown
wheel " .. ............................ .......... ...... .
Wheel nuts ...... ............................... .. .......... .
Lock nut -speedometer sensor .
............................. .
• Do not exceed specified torque .. Use new bolts.
I Final drive 760 /780 4-door 1988-, 960
Reduction ratio ................................... .......... .
Axial throw , crown wheel ..................................... .
Backlash ............... .................................... .
Pinion bearing
preload , new .................................. .
old ........ .. ..... .................... .
Differential bearing, preload .................................. .
Clearance , speedometer' -impulse wheel ....... ............... .
Radial throw , outer diameter, impulse wheel ....... ............. .
Lubricant.
..... ............................................. .
T ightening torque s
='.. Coupling flange -pinion (nut) ................................ .
Crown
wheel -differential housing bolt + 60 deg . angle-tightening.
Wheel nuts .. ............................. .................. .
Impulse sender -rear casing (bolt) ............................ .
Rear casing -
final drive (bolt) ................................ .
Side bracket -final drive (bolt) ............................... .
Lock washer -adjustment nut
(bolt) ........................... .
Balance weight -final drive (bolt) ............................. .
Oil drain plug ............................................... .
Oil filler plug ................................................ .
Drive shaft
bolts (+900 angle tightening) ....................... .
Drive shaft nuts,
(+600 angle tightening) ............... ........ .
152
Nm ttlb
200-250 147-185
180-280 130-207
45-60 33-44
90-110 66-81
85 63
25-40 18-29
3.54:1, 3.73:1, 3.91:1
Max 0.08 mm (0.0032 in)
0.1-0. 16 mm (0.04--0 .006 in)
1.2-2.8 Nm (0.87 -2.0 ft Ib)
1.0-2.5 Nm (0.72-1 .8 ft Ib)
1 + 1 notches on each side
0.35-0.75 mm (0.014--0.030 in)
Max.
0.2 mm (0. 008 in)
See page 9
Nm
180-280
35
85
8-12
20-28
40-56
40-56
20-28
27-40
27-40
30
140
ftlb
(133-207)
(26)
(63)
(6-9)
(14--20)
(29-40)
(29-40)
(14--20)
(20-29)
(20-29)
(22)
(103)