1991 MITSUBISHI ECLIPSE engine

9-10ENGINE - SpecificationsItems
rIvrs,iz; rework dimension of valve seat hole
Intake0.3
(012) O.S.0.6
(024) O.S.
Exhaust 0.3
(.012) O.S.
0.6
(024) OS.Oversize rework of valve guide hole
(both intake and exhaust)mm (in.)
0.05
(.002) O.S.0.25
(.OlO) O.S.
0.50
(.020) O.S.Standard Value
43.300-43.325
(1.7047- 1.7057)
43.600-43.625
(1.7165-1.7175)
37.300-37.325(1.4685- 1.9695)
37.600-37.625(1.4803- 1.4813)
13.050- 13.068(.5138-.5145)
13.250- 13.268(.5217-.5224)
13.500-13.518
(.5315-.5322)Limit
Camshaft
Cam heightmm (in.)
Intake35.91 (1.4138)35.41 (1.3941)
Exhaust35.91 (1.4138)35.41 (1.3941)
Journal O.D.mm (in.)
33.935-33.950(1.3360- 1.3366)Bearing oil clearancemm (in.)
0.05-0.09 (.0020-.0035)End playmm (in.)
0.1-0.2 (.004-,008)Rocker arm
I.D.mm (in.)
18.910- 18.928
(.7445- .7452)Clearance (Rocker arm to shaft)mm (in.)
0.01-0.04 (.0004-.0016)0.1 (004)Rocker arm shaft
O.D.mm (in.)
18.885- 18.898(.7435-.7440)Rocker arm shaft spring
Free lengthmm (in.)
Intake
Exhaust
Valve
Valve lengthmm (in.)
Intake
Exhaust
Stem
O.D.mm (in.)
Face angle
Thickness of valve head (Margin)
Intake
Exhaust53.3
(2.098)53.3
(2.098)109.8 (4.323)
108.7 (4.280)
8
(.31)
45”-45.5”mm (in.)
1 .o
(.039)0.7 (028)0.7
(.028)0.5 (.020)

ENGINE - SDecifications9-11
.-ems
Ring groove widthmm (in.)
No. 1No. 2
Oil
Service sizemm (in.)Standard ValueLimit1.52- 1.54 (.0598-.0606)
1.51-l .53 (.0594-.0602)
4.015-4.045 (.1581-.1593)0.25
(.OlO), 0.50 (.020),0.75 (.030), 1.00 (.039)oversize
ston ring
Side clearancemm (in.)
No. 1No. 2
End gapmm (in.)
No. 1No. 2
Oil ring side railmm (in.)
Service sizemm (in.)
0.045-0.085 (.0018-.0033)0.12 (.005)
0.02-0.06 (.0008-.0024)0.1 (.004)
0.30-0.45 LO1 188.0177)0.8 (.031)
0.20-0.35 (.0079-0.138)0.8 i.031)
0.20-0.70 (.0079-.0276)1.0 (.039)0.25
(.OlO), 0.50 (.020).0.75 (.030), 1.00 LO391oversize
lnnecting rod
Bendmm (in.)
Twistmm (in.)
Connecting rod
bigmKdi,;; crankshaft
side clearance
Piston pin press-in loadN (Ibs.)
xrnecting rod bearing
Oil clearancemm (in.)
Service sizemm (in.)0.05 or less per 100
(.0020 or less per 3.937)
0.1 or less per 100
LOO39 or less per 3.937)
0.10-0.25 (.0039-.0098)0.4 (.016)
5,000- 15,500 (l ,l OO-3,300)
0.02-0.05 (.0008-.0020)0.1 (.004)0.25
(.OlO), 0.50 (.020),0.75 (.030) undersize.ankshaft main bearing
Oil clearancemm (in.)
Service sizemm (in.)
0.02-0.05 (.0008-.0020)0.25
(.OlO), 0.50 i.0201,
0.75 l.030) undersize
ankshaft
Pin O.D.mm (in.)45 (1.77)
Journal O.D.mm (in.)57 (2.24)
Out-of-roundness of journal and pinmm (in.)Less than
0.015 (.OOOS)Taper of journal and pinmm (in.)Less than
0.005 (.0002)tnd playmm (in.)
0.05-0.18 (.0020-.0070)0.4 (.016)

9-12ENGINE - Specifications3msStandard ValueLimit
Undersize rework dimension of pinmm (in.)
0.25
f.010) U.S.44.735-44.750
(1.7612-1.7618)0.50
(.020) U.S.44.485-44.500
(1.7514-1.7520)0.75
(030) U.S.44.235-44.250(1.7415-1.7421)
Undersize rework dimension of journalmm (in.)
0.25
(.OlO) U.S.56.735-56.750(2.2337-2.2342)
0.50
(020) U.S.56.485-56.500(2.2238-2.2244)
0.75
(.030) U.S.56.235-56.250
(2.2140-2.2146)
wheelRunoutmm (in.)Less than 0.13
(0051)I pressure at curb idle speedkPa (psi)80 (11.4) or more
onditions: oil temperature is 75 to
90°C67 to 194”F)l
1 w-wTip clearancemm (in.)
Drive gear
0.06-0.12 (.0024-.0047)0.20 i.0079)Driven gear
0.04-O. 12 (.0016-.0047)0.18 (.0071)Side clearancemm (in.)
Drive gear
0.10-0.16 (.0039-.0063)0.20 (.0079)Driven gear
0.02-0.05 (.0008-.0020)0.15 (.0059)
rlief spring
Free lengthmm (in.)
43.8 (1.724)
Load
[37N at 8.2 Ibs.]mm (in.)
40.1 (1.5787)
ive belt
For alternator
Deflection
mm (in.)
Inspection
9.0- 11.5 (.354-,453)New belt
7.5-9.0 (.295-.354)Used belt
10
i.394)TensionN (Ibs.)
Inspection
250-500 (55- 110)
New belt
500-700 (110-154)Used belt
400 (88)
For air conditioner compressor
Deflectionmm (in.)
Inspection
Approx. 8
(315)New belt
5.0-5.5 (.197-.217)Used belt
6.0-7.0 (.236-.276)

ENGINE - SDecificationsItems
TensionN (Ibs.)
Inspection
New belt
Used belt
For power steering pump
Deflectionmm (in.)
Inspection
Timing belt tensionmm (in.)Standard Value
250-500 (55-l 10)
470-570 (104- 126)
320-400 (71-88)
6.0-9.0 (.236-.354)14
(.55)NOTE
O.D.: Outer Diameter
I.D.: Inner Diameter
OS.: Oversize Diameter
U.S.: Undersize Diameter<2.0L DOHC Engine>
-ItemsStandard ValueLimit
Engine adjustments
Engine compression pressurekPa (psi)
(Turbo)
Engine compression pressure difference
between each cylinderkPa (psi)
Intake manifold vacuum at idlemm Hg
(in.Hg)

Timing belt “B” tensionmm (in.)
-
-
-490 (19.3)
480 (18.9)
5-7
(.20-.28)Cylinder head
Overall heightmm (in.)132.0 (5.197)
Flatness of gasket surfacemm (in.)
Flatness of manifold mounting surfacemm (in.)
Oversize rework dimension of valve seat hole
mm (in.)
Intake0.3
(.012) 0,s.0.6 (0.24)
0,s.Exhaust 0.3
(.012) OS.
0.6
(.024) 0.S~ less than 0.05
(.0020)Less than 0.15
(.0059)
35.300-35.325(1.3898-1.3907)
35.600-35.625
(1.4016-l .4026)
33.300-33.325(1.3110-1.3120)
33.600-33.625
(1.3228- 1.3238)Limit
Min. 960 (137)
Min. 800 (114)
Max. 100 (14)
-0.2
(-,008)”*Limit must be -0.2
(- .008) combined
with amount of
grinding of cylinder
block gasket surface.
0.2
(.008)0.3
(.012)

9-14ENGINE - SpecificationsItems
Oversize rework of valve guide hole
(both intake and exhaust)mm (in.)
0.05
(.002) O.S.0.25
(.OlO) O.S.
0.50
(.020) 0,s.Standard Value
12.050-12.068(.4744-.4751)
12.250-12.268(.4823-.4830)
12.500-12.518
(.4921-.4928)Limit
,’Camshaft
Cam heightmm (in.)
Intake
35.493 (1.3974)34.993 (1.3777)
35.200 (1.3858)34.700 (1.3661)
Exhaust
35.200 (1.3858)34.700 (1.3661)
35.493 (1.3974)34.993 (1.3777)
Journal O.D.mm (in.)
25.951-25.970(1.0217-1.0224)Bearing oil clearancemm (in.)
0.05-0.09 (.0020-.0035)End playmm (in.)
0.1-0.2 (.004-,008)Valve
Valve lengthmm (in.)
Intake
109.5 (4.311)
Exhaust
109.7 (4.319)
Stem O.D.mm (in.)
Intake
6.565-6.580(.2585-.2591)Exhaust
6.530-6.550
(.2571-.2579)Face angle
45"-45.5"Thickness of valve head (Margin)
mm (in.)
Intake
1.0
(.040)0.7 (.028)Exhaust
1.5
(.059)1.0 (.040)Jalve stem to valve guide clearance
mm (in.)
Intake
0.02-0.047 (.0008-.0019)0.10 (.004)Exhaust
0.05-0.085 (.0020-.0033)0.15 (.006)Jalve guide
Length
mm (in.)
Intake
45.5 (1.791)
Exhaust
50.5 (1.988)
Service size
mm (in.)
0.05
(.002), 0.25 (.OlO),0.50 (.020) oversize
/alve seat
Width of seat contact
mm (in.)
0.9-1.3 (.035-.051)Seat angle
44"-44.5"Service size
mm (in.)
0.3
(.012), 0.6 (.024)oversize

ENGINE - Specifications9-15ItemsStandard ValueLimit
Valve spring
Free lengthmm (in.)48.3
(1.902)47.3 (1.862)
Load
N (Ibs.)300 (66) at installed height
Out of squarnessLess than 1.5”4”
Cylinder block
Cylinder boremm (in.)85.00 (3.3465)
FIu-o$xrndness and taper of cylinder boreLess than 0.01 (0004)Flatness of gasket surfacemm (in.)Less than 0.05
(.0020)0.1 (.0040)Right silent shaft
Front journal diameter
mm (in.)
41.959-41.975(1.6519-1.6526)
Rear journal diameter
mm (in.)
40.951-40.967(1.6122-1.6129)
Oil clearancemm (in.)
Front journal
0.020-0.061 (.0008-.0024)Rear journal
0.050-0.091 (.0020-.0036)Left silent shaft
Front journal diameter
mm (in.)
18.467- 18.480(.7270-.7276)Rear journal diameter
mm (in.)
40.959-40.975
(1.6126-1.6132)Oil clearancemm (in.)
Front journal
0.020-0.054 (.0008-.0021)Rear journal
0.042-0.083 (.0017-.0033)Piston
O.D.
mm (in.)85.00 (3.3465)
CnlIr;;y (Piston to cylinder)(Non-Turbo) 0.02-0.04 (.0008-.0016)(Turbo)
0.03-0.05 (.0012-.0020)Ring groove width
mm (in.)
No. 11.22-l .24 (.0480-.0488)
No.21.52- 1.54 (.0598-.0606)Oil
3.01-3.03 (.1185-.1193)Service sizemm (in.)0.25
(.OlO), 0.50 (.020),0.75
(.030), 1 .oo i.039)oversize‘iston ring
Side clearancemm (in.)
No.1. No.2End gapmm (in.)
No. 1No. 2
Oil ring side railmm (in.)
Service sizemm (in.)
0.03-0.07 (.0012-.0028)
0.25-0.45 (.0098-.0177)
0.35-0.50 (.0138-.0197)
0.20-0.70 (.0079-.0276)0.25
(.OlO), 0.50 (.020),0.75 (030). 1.00 i.039)oversize0.1
(.004)0.8
(.031)0.8
(.031)1.0
(.040)

9-16ENGINE - SpecificationsItems
Connecting rod
Bendmm (in.)
Twistmm (in.)
Connecting rod big end to crankshaft
side clearancemm (in.)
Piston pin press-in loadN (Ibs.)Standard Value
0.05 or less per 100
(0020 or less per 3.937)
0.1 or less per 100
(0040 or less per 3.937)
0.10-0.25 (.0040-.0098)
75,000- 175,000
(1,653-3,858)Limit
0.4
(0157)Connectingrod bearing
Oil clearancemm (in.)
Crankshaft main bearing
Oil clearancemm (in.)
Crankshaft
Pin O.D.mm (in.)
Journal
0.D:mm (in.)
Out-of-roundness of journal and pinmm (in.)
Taper of journal and pinmm (in.)
End playmm (in.)
FlywheelRunoutmm (in.)
Oil pressure at curb idle speedkPa (psi)
[Conditions: oil temperature is 75 to
90°C(167 to 194”F)l
0.02-0.05 (.0008-.0020)
0.02-0.05 (.0008-.0020)
44.980-44.995
(1.7709-1.7715)
56.980-56.995
(2.2433-2.2439)Less than
0.015 (.0006)Less than
0.005 (.0002)
0.05-0.18 (.0020-.0070)80
(11.4) or more0.1
(.004)0.1
(004)0.25
LOO981Less than 0.13
(.0051)Oil pump
Tip clearancemm (in.)
Drive gear
0.16-0.21 (.0063-.0083)0.25 f.0098)Driven gear
0.13-0.18 (.0051-.0071)0.25 t.0098)Side clearancemm (in.)
Drive gear
0.08-0.14 (.0031-.0055)0.25 (.0098)Driven gear
0.06-0.12 (.0024-.0047)0.25 i.0098)
qelief spring
Free lengthmm (in.)
46.6 (1.835)
Load
[61N at 13.4 Ibs.]mm (in.)
40.1 (1.579)

ENGINE - Specifications
..--Items
Drive belt
For alternator
Deflectionmm (in.)
Inspection
New belt
Used belt
Tension
N (Ibs.)
Inspection
New belt
Used belt
For air conditioner compressor
Deflectionmm (in.)
Inspection
New belt
Used belt
Tension
N (Ibs.)
Inspection
New belt
Used belt
For power steering pump
Deflectionmm (in.)
Inspection
Timing belt
Amount;; I;;;j;ction of auto tensioner
rodTiming belt “B” tensionmm (in.)
Amount;: I;;;jytion of auto tensioner
rod(distance between the tensioner arm and
auto tensioner body)
Auto tensioner rod retraction
wmNOTE
O.D.: Outer Diameter
I.D.: Inner Diameter
0,s.: Oversize Diameter
U.S.: Undersize DiameterStandard Value
9.0- 11.5 (.354-.453)
7.5-9.0 (.295-.354)10
i.394)
250-500 (55-l 10)
500-700 (11 o-1 54)400 (88)
Approx. 8
(.315)
5.0-5.5 (.197-.217)
6.0-7.0 (.236-,276)
250-500 (55- 110)
470-570 (104-126)
320-400 (71-88)
6.0-9.0 (.236-,354)12
(.47)5-7
(.20-.28)3.8-4.5
(.15-,1812.5-3Limit