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Engine Specifications

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GENERAL ENGINE SPECIFICATIONS

Application Specification
Displacement 79 Cu. In. (1.3L)
Bore 2.91" (73.9 mm)
Stroke 2.97" (75.4 mm)
Compression Ratio 9.5:1
Fuel System
1998 (8-Valve) TBI
1999 (16-Valve) MFI
CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS

Application In. (mm)
Crankshaft
End Play
Standard .0044-.0122 (.112-.310)
Wear Limit .0149 (.378)
Runout .0023 (.058)
Main Bearings
Journal Diameter (1)
No. 1 1.7714-1.7716 (44.994-45.000)
No. 2 1.7712-1.7714 (44.988-44.994)
No. 3 1.7710-1.7712 (44.982-44.988)
Undersized 1.7611-1.7618 (44.732-44.750)
Journal Out-Of-Round .0004 (.010)
Journal Taper .0004 (.010)
Oil Clearance
Standard .00008-.00015 (.0020-.0038)
Wear Limit .0023 (.058)
Connecting Rod Journal
Journal Diameter 1.6529-1.6535 (41.982-41.999)
Journal Out-Of-Round .0004 (.010)
Journal Taper .0004 (.010)
Oil Clearance
Standard
1998 (8-V) .0012-.0019 (.030-.048)
1999 (16-V) .008-.019 (.020-.048)
Wear Limit .0031 (.079)
Main Bearing Cap Bore
Diameter (Without Bearing)
Stamped "A" 1.9291-1.9294 (49.000-49.006)
Stamped "B" 1.9294-1.9296 (49.006-49.012)
Stamped "C" 1.9296-1.9298 (49.012-49.018)
(1) Use number stamped on crankshaft counterweight to determine journal diameter. See Figure.
CONNECTING RODS

Application In. (mm)
Maximum Bend .0002 (.005)
Maximum Twist .0039 (.100)
Side Play
Standard .0039-.0078 (.100-.200)
Wear Limit .0137 (.349)
PISTONS, PINS & RINGS

Application In. (mm)
Pistons
Clearance .0008-.0015 (.020-.038)
Diameter (1)
No. 1 2.9126-2.9130 (73.980-73.990)
No. 2 2.9122-2.9126 (73.970-73.980)
Rings
No. 1 (Compression)
End Gap
Standard
1998 (8V) .0079-.0118 (.200-.300)
1999 (16V) .0059-.0118 (.150-.300)
Wear Limit .0276 (.700)
Groove Clearance .0012-.0027 (.030-.069)
No. 2 (Compression)
End Gap
Standard
1998 (8V) .0079-.0118 (.200-.300)
1999 (16V) .0079-.0137 (.200-.350)
Wear Limit .0276 (.700)
Groove Clearance .0008-.0023 (.020-.058)
No. 3 (Oil)
End Gap
Standard
1998 (8V) .0079-.0275 (.200-.700)
1999 (16V) .0079-.0236 (.200-.600)
Wear Limit .0708 (1.798)
(1) Piston diameter is determined by piston identification mark on top of piston. See Figure.
CYLINDER BLOCK

Application In. (mm)
Cylinder Bore
Standard Diameter (1)
No. 1 2.9138-2.9142 (74.01-74.02)
No. 2 2.9134-2.9138 (74.000-74.011)
Maximum Diameter 2.9196 (74.150)
Maximum Taper .004 (.10)
Maximum Out-Of-Round .004 (.10)
Maximum Deck Warpage .0024 (.061)
(1) Cylinder bore diameter is determined by number on deck surface of cylinder block. See Figure.
VALVES & VALVE SPRINGS (1998 8-VALVE)

Application Specification
Intake Valves
Face Angle 45°
Head Thickness .039" (.99 mm)
Head Thickness Limit .023" (.60 mm)
Stem Diameter .2742-.2748" (6.965-6.980 mm)
Runout Limit .0027" (.070 mm)
Exhaust Valves
Face Angle 45°
Head Thickness .039" (.99 mm)
Head Thickness Limit .027" (.69 mm)
Stem Diameter .2737-.2742" (6.950-6.965 mm)
Runout Limit .0035" (.090 mm)
Valve Springs
Free Length
Standard 1.9409" (49.299 mm)
Wear Limit 1.8937" (48.100 mm)
Out-Of-Square .079" (2.01 mm)
Lbs. @ In. (kg @ mm) 
Pressure
Valve Closed
Standard 54.72-64.30 @ 1.63 (24.8-29.2 @ 41.4)
Wear Limit 50.20 @ 1.63 (22.8 @ 41.4)
VALVES & VALVE SPRINGS (1999 16-VALVE)

Application Specification
Intake Valves
Face Angle 45°
Head Thickness .030-.047" (.80-1.20 mm)
Head Thickness (Minimum) .023" (.60 mm)
Stem Diameter .2152-.2157" (5.465-5.480 mm)
Runout Limit .005" (.14 mm)
Exhaust Valves
Face Angle 45°
Head Thickness .030-.047" (.80-1.20 mm)
Head Thickness (Minimum) .027" (.69 mm)
Stem Diameter .2142-.2148" (5.440-5.455 mm)
Runout Limit .0070" (.180 mm)
Valve Springs
Free Length
Standard 1.450" (36.83 mm)
Wear Limit 1.404" (35.67 mm)
Out-Of-Square .079" (2.01 mm)
Lbs. @ In. (kg @ mm) 
Pressure
Valve Closed
Standard 23.6-27.5 @ 1.24 (10.7-12.5 @ 31.5)
Wear Limit 20.5 @ 1.24 (9.3 @ 31.5)
CYLINDER HEAD (1998 8-VALVE)

Application Specification
Maximum Warpage
Cylinder Block Surface .002" (.05 mm)
Manifold Surface .004" (.10 mm)
Valve Seats
Seat Angle 45°
Seat Width .0512-.0590" (1.300-1.499 mm)
Valve Guides
Intake Valve
Valve Guide I.D. .2756-.2761" (7.000-7.013 mm)
Valve Stem-To-Guide Oil Clearance
Standard .0008-.0019" (.020-.048 mm)
Wear Limit .0027" (.069 mm)
Exhaust Valve
Valve Guide I.D. .2756-.2761" (7.000-7.013 mm)
Valve Stem-To-Guide Oil Clearance
Standard .0014-.0025" (.036-.064 mm)
Wear Limit .0035" (.089 mm)
CYLINDER HEAD (1999 16-VALVE)

Application Specification
Maximum Warpage
Cylinder Block Surface .002" (.05 mm)
Manifold Surface .004" (.10 mm)
Valve Seats
Seat Angle 45°
Seat Width .0433-.0512" (1.100-1.300 mm)
Valve Guides
Intake Valve
Valve Guide I.D. .2159-.2169" (5.485-5.510 mm)
Valve Stem-To-Guide Oil Clearance
Standard .0002-.0018" (.005-.045 mm)
Wear Limit .0027" (.069 mm)
Exhaust Valve
Valve Guide I.D. .2159-.2169" (5.485-5.510 mm)
Valve Stem-To-Guide Oil Clearance
Standard .0012-.0027" (.030-.070 mm)
Wear Limit .0035" (.089 mm)
CAMSHAFT (1998 8-VALVE)

Application In. (mm)
Journal Runout .004 (.01)
Lobe Height
Standard 1.5014 (38.136)
Wear Limit 1.4975 (38.037)
Oil Clearance
Standard .0020-.0036 (.051-.091)
Wear Limit .006 (.15)
CAMSHAFT (1999 16-VALVE)

Application In. (mm)
Journal Runout .004 (.01)
Lobe Height
Intake
Standard 1.4241-1.4303 (36.171-36.331)
Wear Limit 1.4202 (36.071)
Exhaust
Standard 1.4314-1.4376 (36.356-36.516)
Wear Limit 1.4275 (36.256)
Oil Clearance
Standard .0016-.0032 (.040-.082)
Wear Limit .0047 (.12)
ROCKER ARMS & ROCKER ARM SHAFT (1998 8-VALVE)

Application In. (mm)
Rocker Arm Shaft .628-.629 (15.97-15.99)
Rocker Arm Shaft Runout .004 (.12)
Rocker Arm .629-.630 (16.00-16.02)
Rocker Arm Oil Clearance
Standard .0005-.0017 (.012-.045)
Wear Limit .0035 (.089)
ROCKER ARMS & ROCKER ARM SHAFT (1999 16-VALVE)

Application In. (mm)
Rocker Arm Shaft .6287-.6290 (15.969-15.984)
Rocker Arm Shaft Runout .008 (.20)
Rocker Arm .629-.630 (16.00-16.02)
Rocker Arm Oil Clearance
Standard .0001-.0014 (.001-.036)
Wear Limit .0035 (.089)
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