1999 NISSAN PRIMERA ad blue

SEL188W TypeOuter view
CircuitConnector symbol
and connectionCase color
BLACK
BROWN
GRAY
BLUE
The arrangement of terminal numbers on the actual relays may differ from those shown above.
STANDARDIZED RELAY
Description (Cont’d)
EL-9

When grinding crank pin and crank journal:
IGrind until clearance is within specified standard bearing
clearance.
IFillets should be finished as shown in the figure. R: 2.3 -
2.5 mm (0.091 - 0.098 in)
Refer to SDS, EM-187 for standard bearing clearance and
available spare parts.
6. If the crankshaft is replaced, select thickness of main bearings
as follows:
a. Grade number of each cylinder block main journal is punched
on the respective cylinder block. These numbers are punched
in either Arabic or Roman numerals.
b. Grade number of each crankshaft main journal is punched on
the respective crankshaft. These numbers are punched in
either Arabic or Roman numerals.
c. Select main bearing with suitable thickness according to the
following table.
Main bearing grade color:
Crankshaft main jour-
nal grade numberCylinder block main journal grade number
012
0 Black Red Green
1 Red Green Yellow
2 Green Yellow Blue
For example:
Cylinder block main journal grade number: 1
Crankshaft main journal grade number: 2
Main bearing grade number=1+2=Yellow
Connecting rod bearing (Big end)NCEM0026S08021. Install connecting rod bearing to connecting rod and cap.
2. Install connecting rod cap to connecting rod.
Tighten bolts to the specified torque.
3. Measure inner diameter ªCº of each bearing.
SEM588A Main journal and pin journal
SEM930F Front
Main journal
grade number
(0, 1, 2)
Cylinder block
No.1 No.3 No.5
No.2 No.4
AEM172 Crankshaft journal
grade number
No. 1 No. 5
SEM194C Oil hole
Oil groove
Identification colourFront
AEM027 Inside micrometer
CYLINDER BLOCKQG
Inspection (Cont'd)
EM-58

b. Grade number of each crankshaft main journal is punched on
the respective crankshaft. These numbers are punched in
either Arabic or Roman numerals.
c. Select main bearing with suitable thickness according to the
following table.
How to select main bearings
(Identification mark and color)
Crankshaft
main journal
grade numberCylinder block main journal grade number
0123
00
(A, Black)1
(B, Red)2
(C, Green)3
(D, Yellow)
11
(B, Red)2
(C, Green)3
(D, Yellow)4
(E, Blue)
22
(C, Green)3
(D, Yellow)4
(E, Blue)5
(F, Pink)
33
(D, Yellow)4
(E, Blue)5
(F, Pink)6
(G, White)
For example:
Main journal grade number: 1
Crankshaft journal grade number: 2
Main bearing grade number=1+2
= 3 (D, Yellow)
Connecting rod bearing (Big end)
1. Install connecting rod bearing to connecting rod and cap.
2. Install connecting rod cap to connecting rod.
Tighten bolts to the specified torque.
3. Measure inner diameter ªCº of each bearing.
4. Measure outer diameter ªDpº of each crankshaft pin journal.
5. Calculate connecting rod bearing clearance.
Connecting rod bearing clearance=CþDp
Standard: 0.020 - 0.045 mm (0.0008 - 0.0018 in)
Limit: 0.065 mm (0.0026 in)
6. If it exceeds the limit, replace bearing.
7. If clearance cannot be adjusted within the standard of any
bearing, grind crankshaft journal and use undersized bearing.
Refer to step 7 of ªBEARING CLEARANCE þ Main bearingº
(EM-114).
SEM013D Type I
Main journal grade number
No. 5
No. 4 No. 1
Crankshaft
front view
SEM203D Type II
Main journal grade number
No. 1
No. 5 journal
Crankshaft
front view
AEM027 Inside micrometer
AEM028
CYLINDER BLOCKSR20DE
Inspection (Cont'd)
EM-115

8. If crankshaft is replaced with a new one, select connecting rod
bearing according to the following table.
Connecting rod bearing grade number:
These numbers are punched in either Arabic or Roman numerals.
Crank pin grade numberConnecting rod bearing grade
number
00
11
22
Identification color:
Grade 0; Black or Yellow
Grade 1; Brown or Red
Grade 2; Green or Blue
Method B (Using plastigage)
CAUTION:
IDo not turn crankshaft or connecting rod while plastigage
is being inserted.
IWhen bearing clearance exceeds the specified limit,
ensure that the proper bearing has been installed. If incor-
rect bearing clearance exists, use a thicker or undersized
main bearing to ensure specified clearance.
CONNECTING ROD BUSHING CLEARANCE (Small end)
1. Measure inner diameter ªCº of bushing.
Refer to SDS EM-193 - ªCONNECTING RODº.
2. Measure outer diameter ªDpº of piston pin.
3. Calculate connecting rod bushing clearance.
Connecting rod bushing clearance=CþDp
Standard:
0.005 - 0.017 mm (0.0002 - 0.0007 in)
Limit:
0.023 mm (0.0009 in)
If it exceeds the limit, replace connecting rod assembly or
connecting rod bushing and/or piston set with pin.
SEM013D Type I
Main journal grade number
No. 5
No. 4 No. 1
Crankshaft
front view
SEM204D Type II
No. 1No. 2No. 3
No. 4 cylinder
Grade 0
Grade 1
Grade 2
Pin journal
grade number
Crankshaft
rear view
EM142
AEM029
AEM030 Micrometer
CYLINDER BLOCKSR20DE
Inspection (Cont'd)
EM-116

IIf crankshaft main journal is worn or shows any abnormality,
regrind crank journal and use undersized bearings to maintain
the specified oil clearance.
IRefer to SDS for regrinding crankshaft journal diameter
and available service parts (EM-200).
IWhen regrinding crankshaft journal, do not grind fillet-roll.
IIf either bearing, crankshaft or cylinder block is replaced with
a new one, select main bearing according to the following
table. These numbers are punched in either Arabic or Roman
numerals.
Main bearing housing grade number
012
Main bearing grade number
Crankshaft main journal
grade number0012
1123
2234
Identification color:
Grade 0 Yellow
Grade 1 Green
Grade 2 Brown
Grade 3 Black
Grade 4 Blue
For example:
Main journal grade number: 1
Crankshaft journal grade number: 2
Main bearing grade number=1+2=3
Main bearing thickness:
Refer to SDS (EM-200).
CONNECTING ROD BEARING CLEARANCE (Big end)
1. Install connecting rod bearing to connecting rod and cap.
2. Install connecting rod cap with bearing to connecting rod.
Apply oil to the threaded portion of bolts and seating surface
of nuts.
: 37 - 45 N´m (3.8 - 4.6 kg-m, 27 - 33 ft-lb)
3. Measure inside diameter ªCº of bearing.
SEM566B Counter weight
Main journal
.Maintain more than 0.13 mm (0.0051 in)
SEM706DA
SEM706A
AEM027 Inside micrometer
CYLINDER BLOCKCD20T
Inspection (Cont'd)
EM-170

4. Measure outside diameter ªDpº of crankshaft pin journal.
5. Calculate connecting rod bearing clearance.
Connecting rod bearing clearance = CþDp
Standard:
0.031 - 0.055 mm (0.0012 - 0.0022 in)
IIf it exceeds the limit, replace the bearing.
IIf crankshaft pin journal is worn or shows any abnormality,
regrind crank pin and use undersized bearings to maintain the
specified oil clearance.
IRefer to SDS for regrinding diameter of crankshaft pin and
available service parts (EM-200).
IWhen regrinding crankshaft pin, do not grind fillet-roll.
Selective connecting rod bearing
IIf either bearings or crankshaft are being replaced with new
ones, select connecting rod bearings according to the follow-
ing table. Grade numbers are punched in either Arabic or
Roman numerals.
Crankshaft pin journal grade number
012
Connecting rod bearing grade
number012
Identification color
Grade 0: Black
Grade 1: Yellow
Grade 2: Blue
CONNECTING ROD AND PISTON PIN CLEARANCE
(Small end)
Clearance (D þ d):
0.025 - 0.044 mm (0.0010 - 0.0017 in)
IIf clearance exceeds the specifications, replace the bearing.
SEM361D Counter weight
Pin journal
.Maintain more than 0.13 mm (0.051 in)
SEM705D
SEM575B Clearance=Dþd
CYLINDER BLOCKCD20T
Inspection (Cont'd)
EM-171

Connecting RodNCEM0035Unit: mm (in)
Center distance140.45 - 140.55 (5.5295 - 5.5335)
Bend limit [per 100 (3.94)]0.15 (0.0059)
Torsion limit [per 100 (3.94)]0.3 (0.012)
Connecting rod bushing inner diameter* (small end) 19.000 - 19.012 (0.7480 - 0.7485)
Connecting rod big end inner diameter 43.000 - 43.013 (1.6929 - 1.6934)
Side clearanceStandard 0.200 - 0.470 (0.0079 - 0.0185)
Limit 0.5 (0.020)
*After installing in connecting rod
CrankshaftNCEM0036Unit: mm (in)
Main journal dia. ªDmºGrade No. 0 49.956 - 49.964 (1.9668 - 1.9671)
Grade No. 1 49.948 - 49.956 (1.9665 - 1.9668)
Grade No. 2 49.940 - 49.948 (1.9661 - 1.9665)
Pin journal dia. ªDpºGrade No. 0 39.968 - 39.974 (1.5735 - 1.5738)
Grade No. 1 39.962 - 39.968 (1.5733 - 1.5735)
Grade No. 2 39.956 - 39.962 (1.5731 - 1.5733)
Center distance ªrº43.95 - 44.05 (1.7303 - 1.7342)
Out-of-round (X þ Y)Standard Less than 0.003 (0.0001)
Limit Less than 0.005 (0.0002)
Taper (A þ B)Standard Less than 0.004 (0.0002)
Limit Less than 0.005 (0.0002)
Runout [TIR*]Standard Less than 0.04 (0.0016)
Limit Less than 0.05 (0.0020)
Free end playStandard 0.060 - 0.260 (0.0024 - 0.0102)
Limit 0.3 (0.012)
*: Total indicator reading
Main BearingNCEM0037STANDARDNCEM0037S01
Grade No. Thickness ªTº mm (in) Identification color
0 1.826 - 1.830 (0.0719 - 0.0720) Black
1 1.830 - 1.834 (0.0720 - 0.0722) Red
2 1.834 - 1.838 (0.0722 - 0.0724) Green
3 1.838 - 1.842 (0.0724 - 0.0725) Yellow
4 1.842 - 1.846 (0.0725 - 0.0727) Blue
UNDERSIZENCEM0037S02Unit: mm (in)
Thickness ªTº
0.25 (0.0098) 1.960 - 1.964 (0.0772 - 0.0773)
0.50 (0.0197) 2.085 - 2.089 (0.0821 - 0.0822)
SERVICE DATA AND SPECIFICATIONS (SDS)QG
Connecting Rod
EM-186

CRANKSHAFT
Unit: mm (in)
Main journal dia. ªDmº
Grade No. 0 54.974 - 54.980 (2.1643 - 2.1646)
Grade No. 1 54.968 - 54.974 (2.1641 - 2.1643)
Grade No. 2 54.962 - 54.968 (2.1639 - 2.1641)
Grade No. 3 54.956 - 54.962 (2.1636 - 2.1639)
Pin journal dia. ªDpº
Grade No. 0 47.968 - 47.974 (1.8885 - 1.8887)
Grade No. 1 47.962 - 47.968 (1.8883 - 1.8885)
Grade No. 2 47.956 - 47.962 (1.8880 - 1.8883)
Center distance ªrº 42.96 - 43.04 (1.6913 - 1.6945)
Out-of-round (X þ Y)
StandardPin journal: Less than 0.0025 (0.0001)
Main journal: Less than 0.005 (0.0002)
Taper (A þ B)
StandardPin journal: Less than 0.0025 (0.0001)
Main journal: Less than 0.005 (0.0002)
Runout [TIR]
Standard Less than 0.025 (0.0010)
Limit Less than 0.05 (0.0020)
Free end play
Standard 0.10 - 0.26 (0.0039 - 0.0102)
Limit 0.30 (0.0118)
SEM954C
EM715 Out-of-round X - Y
Taper A - B
AB
Y
X
AVAILABLE MAIN BEARING
SEM021D
Main bearing (Standard)
Unit: mm (in)
Grade
numberThickness ªTº Width ªWºIdentification
color (mark)
01.977 - 1.980
(0.0778 - 0.0780)
18.9 - 19.1
(0.744 - 0.752)Black (A)
11.980 - 1.983
(0.0780 - 0.0781)Red (B)
21.983 - 1.986
(0.0781 - 0.0782)Green (C)
31.986 - 1.989
(0.0782 - 0.0783)Yellow (D)
41.989 - 1.992
(0.0783 - 0.0784)Blue (E)
51.992 - 1.995
(0.0784 - 0.0785)Pink (F)
61.995 - 1.998
(0.0785 - 0.0787)White (G)
Main bearing (Undersize)
Unit: mm (in)
Undersize Thickness ªTºMain journal
diameter ªDmº
0.25 (0.0098)2.109 - 2.117
(0.0830 - 0.0833)Grind so that bearing
clearance is the
specified value.
SERVICE DATA AND SPECIFICATIONS (SDS)SR20DE
Inspection and Adjustment (Cont'd)
EM-194