1995 NISSAN ALMERA N15 Service Manual

Frontmark
Oil hole
Engine
front Piston
grade
number
Cylindernumber
SEM946C

Top
Oil

SEM199F CYLINDER
BLOCK []:[J
Assembly (Conl'd)

2. Heat piston to60 to70°C (140to158°F) andassemble piston,
piston pin,connecting rodand new snap ring.

• Align thedirection ofpiston andconnecting rod.
• Numbers stampedonconnecting rodand capcorrespond to
each cylinder.
• After assembly, makesureconnecting rodswings
smoothly.

3. Set piston ringsasshown.

CAUTION:
• When piston ringsarenotreplaced, makesurethatpiston
rings aremounted intheir original positions.
• When replacing pistonrings,thosewithout punchmarks can
be mounted witheither sideup.
Oil ring
expander
*v

Engine!/
front

(:J

#5
#4 ~

~il hole #3~~ \)

#2 ~~ ,
#1~~~ ~~

12 ~~

Engine front~
SEM685DCRANKSHAFT

1. Set main bearings intheir proper positions oncylinder
block andmain bearing cap.

• Confirm thatcorrect mainbearings areused. Referto
"Inspection" ofthis section.
• Apply newengine oiltobearing surfaces.
EM-110

Tighteninnumerical order.
'::::::-.... Alignoilhole.
~~
'~~-
SEM015D
SEM159B CYLINDER
BLOCK [][]
Assembly (Cont'd)

2. Install crankshaft andmain bearing capsandtighten bolts
to the specified torque.

• Apply newengine oiltothread ofbearing capbolts.
• Prior totightening bearingcapbolts, shiftcrankshaft back
and forth toproperly seatthebearing cap.
• Tightening procedure
a. Tighten allbolts to26 to32 N'm (2.7to3.3 kg-m, 20to24 •
in-Ib).
b. Turn allbolts 75to80 degrees clockwise withTool orsuit-
able angle wrench.
c. Loosen allbolts completely.
d. Tighten allbolts to32 to38 N'm (3.3to3.9 kg-m, 24to28
ft-Ib).
e. Turn allbolts 45to50 degrees clockwise withTool orsuit-
able angle wrench.
• Ifan angle wrench isnot available, markallbearing cap
bolts onthe side facing engine rear.Then, turneach bolt
specified degreesclockwise. Confirmangleofdegrees with
a graduator, notbyeye-measurement.
• After securing bearingcapbolts, makesurecrankshaft
turns smoothly byhand.

3. Measure crankshaft endplay.

Crankshaft endplay:
Standard
0.10 -0.26 mm(0.0039 -0.0102 in)

Limit
0.30 mm(0.0118 in)

If beyond thelimit, replace thrustbearings withnewones.
4. Install connecting rodbearings inconnecting rodsandcon-
necting rodcaps.

• Confirm thatcorrect bearings areused. Referto
"I nspection" .
• Install bearings sothat oilhole inconnecting rodaligns with
oil hole ofbearing.
• Apply newengine oiltobolt threads andbearing surfaces.

5. Install pistons withconnecting rods.
a. Install themintocorresponding cylinderswithTool.

• Becareful nottoscratch cylinder wallbyconnecting rod.
• Arrange sothat front mark onpiston headfaces toward
front ofengine.
• Apply newengine oiltopiston ringsandsliding surface of
piston.

EM-111

Connectingrodcap nut

SEM017D
SEM218D
SEM219D CYLINDER
BLOCK ~
Assembly (Cont'd)

b. Install connecting rodcaps.
Tighten connecting rodcap nuts tothe specified torque.

Tightening procedure:
1) Tighten nutsto14 to16 N'm (1.4to1.6 kg-m, 10to

12 ft-Ib).

2) Turn nuts60to65 degrees clockwise with
angle wrench.
If
angle wrench isnot available,
tighten nutsto38 to44 N'm (3.9to4.5 kg-m, 28

to 33 ft-Ib).

6. Measure connecting rodside clearance.

Connecting rodside clearance:
Standard 0.20 -0.35 mm(0.0079 -0.0138 in)
Limit 0.50 mm(0.0197 in)

If
beyond thelimit, replace connecting rodand/or crank-
shaft.
7. Install rearoilseal retainer.
a. Before installing rearoilseal retainer, removealltraces of
liquid gasket frommating surface usingascraper.
• Also remove tracesofliquid gasket frommating surface of
cylinder block.
b. Apply acontinuous beadofliquid gasket tomating surface
of rear oilseal retainer.
• Use Genuine LiquidGasket orequivalent.

EM-112

Rightside

SEC. 130.135.185.186.210.213.233
~: N.m(kg-m. in-Ib)

[ClJ :
N.m (kg-m. ft-Ib)
OUTER
COMPONENT PARTS

I~
16-21
(1.6 -2.1,
12-
15)7

I

.~
SEM044FA
•

G)
Starter motor

@
Injection pump

@
Injection tube

@
Thermostat housing
@

Injection nozzle

@
Spill tube

!J)
Water outlet

@
Beltcover

EM-113
@

Timing belt

@
Injection pumpsprocket

@
Rear camshaft sprocket

@
Rear backcover

@
Oilcooler

@
Gasket

OUTERCOMPONENT PARTS
Left side

SEC. 120.135.140.210.230

l"J
16•21 (1.6 .2.1. 12•
7

<, ~

~
/
7~

~ 16-21 (1.6 •2.1, 12•15)~~""

Ii] :
N.m (kg-m, in-Ib)
~ :N.m (kg-m, fl-Ib)
L

~-@@~
-@

~18•22 (1.8 -2.2, 13.16)

6

/

~~ ~2.75(6.3.7.6,46 -55)

SEM045FA

CD
Beltcover upper

@
Water pumppulley

@
Beltcover lower
@

Crankshaft pulley

@
Alternator

@
Alternator bracket

EM-114
(J)

Exhaust manifold

@
Gasket

@
Intake manifold

COMPRESSIONPRESSURE

1. Warm upengine sufficiently.
2. Disconnect injectiontubesonnozzle sideandloosen injec-
tion tubes onpump side.Release clampsoninjection tubes.

• Use twowrenches toprevent delivery holderonpump side
from loosening.

3. Remove spill-tube assembly.

• Toprevent spilltube from breaking, removeitby gripping
nozzle holder.

4. Remove allinjection nozzlesusingasuitable tool.
5. Disconnect fuel-cutsolenoid valveconnector.

EM-115
•

COMPRESSIONPRESSURE

6. Fitcompression gaugetocylinder head.

SEM505D
7.Crank engine andread compression gaugeindication.

Cranking speed:200rpm
Compression pressure:kPa(bar, kg/cm
2,
psi)
Standard
3,138 (31.4, 32,455)

Limit

2,452 (24.5, 25,356)

Limit ofdifference betweencylinders

490 (4.9, 5,71)

8. Ifthe pressure appearslow,pour about 3me (0.11 Impfloz)
of engine oilthrough nozzleholesandrepeat test.
For indications oftest, refer tothe following table.
Gauge indication duringtests Trouble
diagnosis

First
reading Second
reading
Increased
reading
Same reading
maintained
•
Piston ringsareworn ordamaged.
• Iftwo adjacent cylinders arelow, gasket isdamaged .
• Valve issticking .
• Valve seatorvalve contact surface isincorrect.

EM-116

@
Nozzle side

..

Combustion
chamber sideCOMPRESSION
PRESSURE

9. Replace nozzlegaskets andre-install injectionnozzles.

New nozzle gaskets mustbeinstalled inthe direction shown.
Nozzle tocylinder head:
~: 59-69 N'm (6-7 kg-m, 43-51 ft-Ib)

•

SEM511D

10.Install spilltube byholding nozzleholder.

Spill tube nut:
~: 39-49 N'm (4-5 kg-m, 29-36 ft-Ib)

11. Install injection tubesusingtwowrenches asshown.

Injection tubes:
~: 22-25 N'm (2.2-2.5 kg-m, 16-18 ft-Ib)
EM-117