engine MAZDA 232 1990 Suplement Owner's Manual

REMOVAL Bl
Step 6
Separate the engine and transaxle in the order shown in the figure,
MTX
ATX
43GX3i-71
1 _ Intake manifold bracket 5. Air hose [ECE without catalyst only)
2. Center differential lock motor 6. Torque converter nuts @TX)
Removal Note . . _. _. . . ._. . . . . . . . . . . . . _. page 33-l 23 7. Transaxle mounting bolts
3. Starter and bracket 8. Tramaxle
4. Throttle cable (ATX)
Bl-73

Bl INSTALLATiON
INSTALLATION
PROCEDURE
I. Tighten all bolts and nuts to the specified torques.
Step I
1. Join the engine and transaxle.
Toraue Snecifications
1- - -r--
MTX
37-52 (3.8-5.3, 27-38)
37-52 (3.8-5.3, 27-38)
ATX
64-89 (6 S-9 -1, 4746)
Nm (m-kg, ft-lb)
37-52 (3.8-5.3, 27-38)
55-80 (5.6-8.2, 41-59)
N-m (m-kg, ft-lb
51-14

INSTALLATlON ES1
Step 2
Warning
l Be sure the vehicle is securely suppofied on safety stands.
Torque Specifications
I
I i 74-103 (7.5--10.5, 54-76)
/ 7.8-?I N-m
(80--flO cm-kg, 69-95 in-lb) 55-80 (5.fG-8.2, 41-59) 43-61 (4.4-6.2, 32-45)
I
1
I 64-89 (6.5-9.1, 4746) 67-93 (6.8-9.5, 49-69)

7 37-5x 27-38)
Engine and transaxle assembly
Caution
l Do not damage any components in the engine com-
partment.
1. Install the engine and transaxle assembly.

Bl INSTALLATION
Engine mount, clutch release cyiinder (MTX) and engine
mount member
1. Install the No.3 engine mount rubber, and loosely tighten
the bolt and nuts.
2. Install the No.4 engine
mount rubber and bracket assem-
bly, and loosely tighten the
k~olts and nuts.
3. Install the clutch release cylinder and pipe bracket assem-
U-y.
(MTX)
Tightening torque
@: 16-23 Nm (1.6-2.3 m-kg, 12-47 ft-lb)
@: 6.9-9.8
N-m (70-100 cm-kg, 61-87 Mb)
I
93GOBl-72 J .-, , . . ,.
I
93GOBi-713
4. Install the No.2 engine mount rubber and bracket assembly.
Tightening torque:
37-52 Nm (3.8-5.3 m-kg, 27-38 ft-lb)
5. Align the engine mount member to the No.1 and No.2 en-
gine mount bolts, and loosely tighten the nuts.
6. Install and tighten the engine mount member bolt
and nuts.
Tightening torque:
64-89 N-m (6.5-9.1 m-kg, 47-66
ft-Lb)
7. Tighten the No.7 and No.2 engine mount nuts.
Tightening torque:
37-52 Mm (3.8-5.3 m-kg, 27-38 ft.lb)

INSTALLATlON
MTX 1 A-I-X
WUOBX-828
43GOBl-72t
Step 3
Torque Specifications 8. Tighten bolts @ in two or three steps in the order shown.
Tightening torque:
43-61 N-m (4.4-6.2 m-kg, 32-43 ft-lb)
9. Tighten nuts @J.
Tightening torque:
67-93 N-m (6.8-9.5 m-kg, 49-69 ft-lb)
IO. Tighten the No.3 engine mount nuts 0.
Tightening torque:
74-103 Nom (7,5--f0,5 m-kg, 54-76 ft-lb)
Ii. Tighten nut @.
Tightening torque:
67-93 N-m (6.8-9.5 m-kg, 49-69 ft-lb)
12. Install the dynamic damper.
Tightening torque:
55-W N-m (5.6-8.2 m-kg, 41-59 ft-Ib)
13. Remove the chain hoist.
6.9-11 N-m (70-l 10 cm-kg, 63-95 in-lb)
-8-3.1, 20-22)
&TX 6.9-11 N-m (70-130 cm-kg,
b 6% -95 in-lb) /
42-57 (4.3~5.8,31142)
21-27 (2.1-2.8, 15-20)
COTTER PIN, REPLACE
16-23 (1.6L2.3, Q-17)
N-m {m-kg, ft-tb
03UOBX-8:

INSTALLATION Bl
Air cleaner assembly
1. Install the air cleaner assembly.
Tightening torque
@: 19-25 Nm (I-9-2.6 m-kg, 14-19 Mb)
@: 7.8-11 Nm (80~-110 cm-kg, 69-95 in-lb)
2. Connect the airflow sensor connector.
Resonance chamber
1. lnstail the resonance chamber.
Tightening torque:
7.8-W Nm (SO-11 0 cm-kg, 69-95 in-lb)
Undercover and side cuver
1. install the undercovers and side covers.
Steps after installation
1. If the engine oil was drained, refill with the specified amount and type of engine oil.
2. Fill the radiator with the specified amount and type of engine coolant.
3. Fill the transaxle with the specified amount and type of transaxle oil. (Refer to pages J3-36, K3-134.)
4. Connect the negative battery cable.
5. Start the engine and check the following:
(1) Engine oil, transaxle oil, and engine coolant leakage
(2) Ignition timing and idle speed
(3) Operation of emission control system
6. Perform a road test.
7. Recheck the engine oil and engine coolant levels.
93GOSi-719
al-23

B2
ENGINE
(DOHC)
INDEX . . . . . . . ..**......... . . . . . . . ...* . . . . . . . . . . . . . . . . . . . l . BZ- 2
OUTLINE
................................................ BZ- 3
OUTLINE OF CONSTRUCTION.. .............. BZ- 3
SPEClFlCATlONS .................................. BZ- 4
INTERCHANGEABiLITY
.......................... BZ- 5
CYLINDER HEAD
.................................. BZ- 6
CYLINDER BLOCK AND OIL PAN ........... BZ- 7
PISTON ............................................... BZ- 8
FtYWtiEEL .......................................... BZ- 9
CAMSHAFT .......................................... BZ-10
SUPPLEMENTAL SERVICE INFORMATION BZ-11
COMPRESSION
....................................... 82-I 1
INSPECTION ........................................ B2-11
REMOVAL .............................................. BZ-12
PROCEDURE ........................................ BZ-12
ENGINE STAND MOUNTING.. ................... BZ-20
PROCEDURE ........................................ BZ-20
ENGINE STAND DISMOUNTING.. ..............
BZ-21
PROCEDURE ........................................ 82-21
INSTALLATION
....................................... BZ-23
PROCEDURE ........................................ BZ-23
93GOB2-701

B2 INDEX
INDEX
~IMIY~ULU
TIGHTENING TORQUE
19-25 (1.9-2.6, 14-19)
/5--l ENGINE COMPRESSION
STANDARD
MINIMUM kPa (kglcm2, psi)-rpm
BP Turbo
I
1,059 (10.8, 1543-300
1 i-85 (8.0, 114)-300
EXHAUST MANlFOt
TIGHTENING TORQUE
DEFLECTION AT 98 N (IO kg, 22 Ib)
mm (in)
DRIVE BELT 1 NEW USED
ALTERNATOR 1 8.0-9.0 (0.31-U.35) 9.0-I 0.0 (0.35-U.39)
P/S, P/S + AIC ( 8.U-9.0 [O-31--0.35) 9.0-10.0 (0.35-0.39) 3826 3.9-A.?, -28134)
1. Engine
Removal -*-...-..I-*.* . ..wm._..... * e-e... -. page B2--I 2
Engine stand mounting ._.....__... page B2-20
Engine stand dismounting . . . . . . . page B2-21
Installation _ . . . . . . . . . . . . , . . _. . . . . . _. . . . . . . . , page EQ-23
BZ-2

c
OUTLINE B2
INTERCHANGEABILITY
The following chart shows interchangeability of the main park of the BP DOHC Turbo engine for the 4WD
model and the BP DOHC Non-Turbo engine for the 2WD model.
Symbols: 5 . Interchangeabie X . . . . Not Interchangeable
Part name interchangeability Remark
1 Cylinder head Shape different
Camshaft oil sea! :
Cylinder head bolt
3
Cyijnder head gasket cl
C$rnder head cover 0
1
Cylinder Cylinder head cover gasket cl
I
Cylinder block 0
block
related Man bearing cap 0
Main bearing support plate 3
OrI pan x Shape different
Trming belt cuver cl
Seal plate 3
Front oil seal I
3
Rear oil seal cl
Crankshaft ‘3
Main bearing 0
Thrust bearing 0
Connecting rod and cap 0
Connecting rod bearing I
0
Crankshaft [ Prston Shape different
related
Piston pin +-- -
c Piston ring cl
Crankshaft pulley 0
Rear cover 3
I Flywheel X Shape different
Flywheel bolt 0
Timing belt
cl
Timing belt Timing belt crank pulley
cl
Camshaft pulley 0 I
related
f Timing belt tensioner and spring
i 0
1, ldter
Camshaft
; Valve timing different
I-LA
Valve I Make - cl
Valve Exhaust 0
related
Vaive sprtng Intake 0
and seat
Exhaust 0
Valve guide cl
Valve seal 0
Oil pump 0
Oil pump gasket 0
Lubrication Oil strainer
0
system Oil strainer gasket
0
related
Oil cooler
0
Oil jet
0
Oil fitter
0
Water pump cl
Cooling
Thermostat
X system Specificatron drfferent
related Radiator X Specificatron different
Cooling fan
X Specification different
^^-^-^ m^- Ix?-5

B2 OUTLINE
CYLINDER HEAD
INTAKE PORT 1 EXHAUST PORT
ENTlFlCATlON MARK
BP TURBO.. .BP26
BP NON-TURBO...BP05
The cylinder head for the BP DOHC Turbo engine is the same as for the BP DO% Non-Turbo engine! ex-
cept that the intake ports are shaped differently.
The identification mark is cast at the rear of the cyfinder head.
Identification:
BP DUHC Turbo
: BP26
BP DOHC
Non-Turbo: BP05
W-6