oil pressure
Thread Starter
Instructor
Joined: Feb 2009
Posts: 113
Likes: 0
From: Clinton MD
oil pressure
What should my oil pressure be reading under idle, while cruising and at WOT.
02 M6 current readings:
idle 36-38 psi
cruising 40-43 psi
WOT 50-60 psi
Do these numbers sound right?
Thanks
02 M6 current readings:
idle 36-38 psi
cruising 40-43 psi
WOT 50-60 psi
Do these numbers sound right?
Thanks
Instructor
Joined: Jul 2008
Posts: 117
Likes: 0
From: Oviedo Florida
xTooltipElement
Service Information
2002 Chevrolet Corvette | Corvette (VIN Y) Service Manual | Engine | Engine Mechanical - 5.7L | Diagnostic Information and Procedures | Document ID: 773815
--------------------------------------------------------------------------------
Engine Mechanical Specifications (Y Car - LS6)
Application
Specification
Metric
English
General Data
Engine Type
V8
Displacement
5.7L 5665 cc
346 CID
Bore
99.0-99.018 mm
3.897-3.898 in
Stroke
92.0 mm
3.622 in
Compression Ratio
10.5:1
Firing Order
1-8-7-2-6-5-4-3
Spark Plug Gap
1.524 mm
0.06 in
Lubrication System
Oil Capacity - without Oil Filter Change
5.678 Liters
6.0 Quarts
Oil Capacity - with Oil Filter Change
6.151 Liters
6.5 Quarts
Oil Pressure - Minimum-Hot
41 kPa at 1,000 engine RPM
124 kPa at 2,000 engine RPM
165 kPa at 4,000 engine RPM
6 psig at 1,000 engine RPM
18 psig at 2,000 engine RPM
24 psig at 4,000 engine RPM
Oil Type
Mobil® 5W-30 Synthetic
or Equivalent
Camshaft
Camshaft End Play
0.025-0.305 mm
0.001-0.012 in
Camshaft Journal Diameter
54.99-55.04 mm
2.164-2.166 in
Camshaft Bearing Diameter
55.063-55.088 mm
2.1678-2.1688 in
Camshaft Journal-to-Bearing Clearance
0.023-0.098 mm
0.0009-0.0038 in
Camshaft Journal Diameter Out-of-Round
0.025 mm
0.001 in
Camshaft Lobe Lift - Intake
8.24 mm
0.324 in
Camshaft Lobe Lift - Exhaust
8.19 mm
0.322 in
Camshaft Runout - Measured at the Intermediate Journals
0.05 mm
0.002 in
Connecting Rod
Connecting Rod Bearing Bore Diameter
56.505-56.525 mm
2.224-2.225 in
Connecting Rod Bearing Bore Out-of-Round - Production
0.006 mm
0.00023 in
Connecting Rod Bearing Bore Out-of-Round - Service Limit
0.006 mm
0.00023 in
Connecting Rod Bearing Clearance - Production
0.023-0.065 mm
0.0009-0.0025 in
Connecting Rod Bearing Clearance - Service Limit
0.023-0.076 mm
0.0009-0.003 in
Connecting Rod Side Clearance
0.11-0.51 mm
0.00433-0.02 in
Crankshaft
Crankshaft Bearing Clearance - Production
0.020-0.052 mm
0.0008-0.0021 in
Crankshaft Bearing Clearance - Service
0.020-0.065 mm
0.0008-0.0025 in
Crankshaft Connecting Rod Journal Diameter - Production
53.318-53.338 mm
2.0991-2.0999 in
Crankshaft Connecting Rod Journal Diameter - Service Limit
53.308 mm - Minimum
2.0987 in - Minimum
Crankshaft Connecting Rod Journal Taper - Production
0.005 mm - Maximum for 1/2 of Journal Length
0.0002 in - Maximum for 1/2 of Journal Length
Crankshaft Connecting Rod Journal Taper - Service Limit
0.02 mm - Maximum
0.00078 in - Maximum
Crankshaft Connecting Rod Journal Out-of-Round - Production
0.005 mm
0.0002 in
Crankshaft Connecting Rod Journal Out-of-Round - Service Limit
0.01 mm
0.0004 in
Crankshaft End Play
0.04-0.2 mm
0.0015-0.0078 in
Crankshaft Main Journal Diameter - Production
64.993-65.007 mm
2.558-2.559 in
Crankshaft Main Journal Diameter - Service Limit
64.993 mm - Minimum
2.558 in - Minimum
Crankshaft Main Journal Out-of-Round - Production
0.003 mm
0.000118 in
Crankshaft Main Journal Out-of-Round - Service Limit
0.008 mm
0.0003 in
Crankshaft Main Journal Taper - Production
0.01 mm
0.0004 in
Crankshaft Main Journal Taper - Service Limit
0.02 mm
0.00078 in
Crankshaft Reluctor Ring Runout - Measured 1.0 mm (0.04 in) Below Tooth Diameter
0.7 mm
0.028 in
Crankshaft Runout - at Rear Flange
0.05 mm
0.002 in
Crankshaft Thrust Wall Runout
0.025 mm
0.001 in
Crankshaft Thrust Wall Width - Production
26.14-26.22 mm
1.029-1.0315 in
Crankshaft Thrust Wall Width - Service
26.2 mm - Maximum
1.0315 in - Maximum
Cylinder Bore
Cylinder Bore Diameter
99.0-99.018 mm
3.897-3.898 in
Cylinder Bore Taper Thrust Side
0.018 mm - Maximum
0.0007 in - Maximum
Cylinder Head
Cylinder Head Engine Block Deck Flatness - Measured within a 152.4 mm (6.0 in) area
0.08 mm
0.003 in
Cylinder Head Engine Block Deck Flatness - Measuring the Overall Length of the Cylinder Head
0.1 mm
0.004 in
Cylinder Head Exhaust Manifold Deck Flatness
0.22 mm
0.008 in
Cylinder Head Intake Manifold Deck Flatness
0.22 mm
0.008 in
Cylinder Head Height - Measured from the Cylinder Head Deck to the Valve Rocker Arm Cover Seal Surface
120.2 mm - Minimum
4.732 in - Minimum
Engine Block
Camshaft Bearing Bore 1 and 5 Diameter
59.08-59.13 mm
2.325-2.327 in
Camshaft Bearing Bore 2 and 4 Diameter
58.83-58.88 mm
2.316-2.318 in
Camshaft Bearing Bore 3 Diameter
58.58-58.63 mm
2.306-2.308 in
Engine Block Cylinder Head Deck Surface Flatness - Measured within a 152.4 mm (6.0 in) area
0.08 mm
0.003 in
Engine Block Cylinder Head Deck Surface Flatness - Measuring the Overall Length of the Block Deck
0.22 mm
0.008 in
Engine Block Cylinder Head Deck Height - Measuring from the Centerline of Crankshaft to the Deck Face
234.57-234.82 mm
9.235-9.245 in
Main Bearing Bore Diameter - Production
69.871-69.889 mm
2.750-2.751 in
Main Bearing Bore Out-of-Round
0.005 mm
0.0002 in
Valve Lifter Bore Diameter - Production
21.417-21.443 mm
0.843-0.844 in
Intake Manifold
Intake Manifold Cylinder Head Deck Flatness - Measured at Gasket Sealing Surfaces
0.5 mm
0.02 in
Oil Pan and Front/Rear Cover Alignment
Oil Pan to Rear of Engine Block Alignment - at Transmission Bellhousing Mounting Surface
0.0-0.25 mm - Maximum
0.0-0.01 in - Maximum
Front Cover Alignment - at Oil Pan Surface
0.0-0.5 mm
0.0-0.02 in
Rear Cover Alignment - at Oil Pan Surface
0.0-0.5 mm
0.0-0.02 in
Piston
Piston Outside Diameter - Non Coated Skirt - at Size Point
98.969-98.987 mm
3.8964-3.897 in
Piston - Piston Diameter - Measured Over Skirt Coating
98.984-99.027 mm
3.897-3.899 in
Piston to Bore Clearance - Non Coated Skirt - Production
0.013-0.049 mm
0.0005-0.0019 in
Piston to Bore Clearance - Non Coated Skirt - Service
0.013-0.074 mm
0.0005-0.0029 in
Piston - Piston to Bore Clearance - Coated Skirt - Production
-0.027 to +0.029 mm
-0.001 to +0.0011 in
Piston - Piston to Bore Clearance - Coating Worn Off - Service Limit
0.074 mm
0.0029 in
Piston Pin
Piston Pin Clearance to Piston Bore - Production
0.01-0.02 mm
0.0004-0.00078 in
Piston Pin Clearance to Piston Bore - Service Limit
0.01-0.022 mm - Maximum
0.0004-0.00086 in - Maximum
Piston Pin Diameter
23.997-24.0 mm
0.9447-0.9448 in
Piston Pin Fit in Connecting Rod
0.02-0.043 mm - Interference
0.00078-0.00169 in - Interference
Piston Rings
Piston Compression Ring End Gap - Production-Top - Measured in Cylinder Bore
0.23-0.44 mm
0.009-0.017 in
Piston Compression Ring End Gap - Production-2nd - Measured in Cylinder Bore
0.44-0.7 mm
0.017-0.027 in
Piston Oil Ring End Gap - Production - Measured in Cylinder Bore
0.18-0.75 mm
0.007-0.029 in
Piston Compression Ring End Gap - Service-Top - Measured in Cylinder Bore
0.23-0.50 mm - Maximum
0.009-0.0196 in - Maximum
Piston Compression Ring End Gap - Service-2nd - Measured in Cylinder Bore
0.44-0.76 mm - Maximum
0.0173-0.03 in - Maximum
Piston Oil Ring End Gap - Service Limit - Measured in Cylinder Bore
0.18-0.81 mm - Maximum
0.007-0.032 in - Maximum
Piston Compression Ring Groove Clearance - Production-Top
0.04-0.086 mm
0.00157-0.0033 in
Piston Compression Ring Groove Clearance - Production-2nd
0.05-0.088 mm
0.002-0.0034 in
Piston Oil Ring Groove Clearance - Production
-0.008 to +0.176 mm
-0.0003 to +0.0069 in
Piston Compression Ring Groove Clearance - Service-Top
0.04-0.086 mm - Maximum
0.00157-0.0033 in - Maximum
Piston Compression Ring Groove Clearance - Service-2nd
0.05-0.088 mm - Maximum
0.002-0.0034 in - Maximum
Piston Oil Ring Groove Clearance - Service Limit
-0.008 to +0.176 mm - Maximum
-0.0003 to +0.0069 in - Maximum
Valve System
Valve Face Angle
45 degrees
Valve Guide Installed Height - Measured from the Cylinder Head Spring Seat Surface to the Top of the Valve Guide
17.32 mm
0.682 in
Valve Lash
Net Lash - No Adjustment
Valve Lift - Intake
14.02 mm
0.552 in
Valve Lift - Exhaust
13.92 mm
0.548 in
Valve Lifter
Hydraulic Roller
Valve Margin
1.25 mm - Minimum
0.05 in - Minimum
Valve Rocker Arm Ratio
1.70:1
Valve Seat Angle
46 degrees
Valve Seat Runout
0.05 mm - Maximum
0.002 in - Maximum
Valve Seat Width - Intake
1.02 mm
0.04 in
Valve Seat Width - Exhaust
1.78 mm
0.07 in
Valve Spring Free Length
53.40 mm
2.10 in
Valve Spring Installed Height - Intake
45.75 mm
1.8 in
Valve Spring Installed Height - Exhaust
45.75 mm
1.8 in
Valve Spring Pressure - Closed
400 N at 45.75 mm
90 lb at 1.8 in
Valve Spring Pressure - Open
1310 N at 31.75 mm
294 lb at 1.25 in
Valve Stem Clearance - Production - Exhaust
0.025-0.066 mm
0.001-0.0026 in
Valve Stem Clearance - Production - Intake
0.025-0.066 mm
0.001-0.0026 in
Valve Stem Clearance - Service - Exhaust -
0.093 mm Maximum
0.0037 in - Maximum
Valve Stem Clearance - Service - Intake
0.093 mm - Maximum
0.0037 in - Maximum
Valve Stem Diameter - Production
7.955-7.976 mm
0.313-0.314 in
Valve Stem Diameter - Service
7.95 mm - Minimum
0.313 in - Minimum
Valve Stem Oil Seal Installed Height - Measured from the Valve Spring Shim to Top Edge of Seal Body - First Design Seal
18.1-19.1 mm
0.712-0.752 in
© 2009 General Motors Corporation. All rights reserved.
Service Information
2002 Chevrolet Corvette | Corvette (VIN Y) Service Manual | Engine | Engine Mechanical - 5.7L | Diagnostic Information and Procedures | Document ID: 773815
--------------------------------------------------------------------------------
Engine Mechanical Specifications (Y Car - LS6)
Application
Specification
Metric
English
General Data
Engine Type
V8
Displacement
5.7L 5665 cc
346 CID
Bore
99.0-99.018 mm
3.897-3.898 in
Stroke
92.0 mm
3.622 in
Compression Ratio
10.5:1
Firing Order
1-8-7-2-6-5-4-3
Spark Plug Gap
1.524 mm
0.06 in
Lubrication System
Oil Capacity - without Oil Filter Change
5.678 Liters
6.0 Quarts
Oil Capacity - with Oil Filter Change
6.151 Liters
6.5 Quarts
Oil Pressure - Minimum-Hot
41 kPa at 1,000 engine RPM
124 kPa at 2,000 engine RPM
165 kPa at 4,000 engine RPM
6 psig at 1,000 engine RPM
18 psig at 2,000 engine RPM
24 psig at 4,000 engine RPM
Oil Type
Mobil® 5W-30 Synthetic
or Equivalent
Camshaft
Camshaft End Play
0.025-0.305 mm
0.001-0.012 in
Camshaft Journal Diameter
54.99-55.04 mm
2.164-2.166 in
Camshaft Bearing Diameter
55.063-55.088 mm
2.1678-2.1688 in
Camshaft Journal-to-Bearing Clearance
0.023-0.098 mm
0.0009-0.0038 in
Camshaft Journal Diameter Out-of-Round
0.025 mm
0.001 in
Camshaft Lobe Lift - Intake
8.24 mm
0.324 in
Camshaft Lobe Lift - Exhaust
8.19 mm
0.322 in
Camshaft Runout - Measured at the Intermediate Journals
0.05 mm
0.002 in
Connecting Rod
Connecting Rod Bearing Bore Diameter
56.505-56.525 mm
2.224-2.225 in
Connecting Rod Bearing Bore Out-of-Round - Production
0.006 mm
0.00023 in
Connecting Rod Bearing Bore Out-of-Round - Service Limit
0.006 mm
0.00023 in
Connecting Rod Bearing Clearance - Production
0.023-0.065 mm
0.0009-0.0025 in
Connecting Rod Bearing Clearance - Service Limit
0.023-0.076 mm
0.0009-0.003 in
Connecting Rod Side Clearance
0.11-0.51 mm
0.00433-0.02 in
Crankshaft
Crankshaft Bearing Clearance - Production
0.020-0.052 mm
0.0008-0.0021 in
Crankshaft Bearing Clearance - Service
0.020-0.065 mm
0.0008-0.0025 in
Crankshaft Connecting Rod Journal Diameter - Production
53.318-53.338 mm
2.0991-2.0999 in
Crankshaft Connecting Rod Journal Diameter - Service Limit
53.308 mm - Minimum
2.0987 in - Minimum
Crankshaft Connecting Rod Journal Taper - Production
0.005 mm - Maximum for 1/2 of Journal Length
0.0002 in - Maximum for 1/2 of Journal Length
Crankshaft Connecting Rod Journal Taper - Service Limit
0.02 mm - Maximum
0.00078 in - Maximum
Crankshaft Connecting Rod Journal Out-of-Round - Production
0.005 mm
0.0002 in
Crankshaft Connecting Rod Journal Out-of-Round - Service Limit
0.01 mm
0.0004 in
Crankshaft End Play
0.04-0.2 mm
0.0015-0.0078 in
Crankshaft Main Journal Diameter - Production
64.993-65.007 mm
2.558-2.559 in
Crankshaft Main Journal Diameter - Service Limit
64.993 mm - Minimum
2.558 in - Minimum
Crankshaft Main Journal Out-of-Round - Production
0.003 mm
0.000118 in
Crankshaft Main Journal Out-of-Round - Service Limit
0.008 mm
0.0003 in
Crankshaft Main Journal Taper - Production
0.01 mm
0.0004 in
Crankshaft Main Journal Taper - Service Limit
0.02 mm
0.00078 in
Crankshaft Reluctor Ring Runout - Measured 1.0 mm (0.04 in) Below Tooth Diameter
0.7 mm
0.028 in
Crankshaft Runout - at Rear Flange
0.05 mm
0.002 in
Crankshaft Thrust Wall Runout
0.025 mm
0.001 in
Crankshaft Thrust Wall Width - Production
26.14-26.22 mm
1.029-1.0315 in
Crankshaft Thrust Wall Width - Service
26.2 mm - Maximum
1.0315 in - Maximum
Cylinder Bore
Cylinder Bore Diameter
99.0-99.018 mm
3.897-3.898 in
Cylinder Bore Taper Thrust Side
0.018 mm - Maximum
0.0007 in - Maximum
Cylinder Head
Cylinder Head Engine Block Deck Flatness - Measured within a 152.4 mm (6.0 in) area
0.08 mm
0.003 in
Cylinder Head Engine Block Deck Flatness - Measuring the Overall Length of the Cylinder Head
0.1 mm
0.004 in
Cylinder Head Exhaust Manifold Deck Flatness
0.22 mm
0.008 in
Cylinder Head Intake Manifold Deck Flatness
0.22 mm
0.008 in
Cylinder Head Height - Measured from the Cylinder Head Deck to the Valve Rocker Arm Cover Seal Surface
120.2 mm - Minimum
4.732 in - Minimum
Engine Block
Camshaft Bearing Bore 1 and 5 Diameter
59.08-59.13 mm
2.325-2.327 in
Camshaft Bearing Bore 2 and 4 Diameter
58.83-58.88 mm
2.316-2.318 in
Camshaft Bearing Bore 3 Diameter
58.58-58.63 mm
2.306-2.308 in
Engine Block Cylinder Head Deck Surface Flatness - Measured within a 152.4 mm (6.0 in) area
0.08 mm
0.003 in
Engine Block Cylinder Head Deck Surface Flatness - Measuring the Overall Length of the Block Deck
0.22 mm
0.008 in
Engine Block Cylinder Head Deck Height - Measuring from the Centerline of Crankshaft to the Deck Face
234.57-234.82 mm
9.235-9.245 in
Main Bearing Bore Diameter - Production
69.871-69.889 mm
2.750-2.751 in
Main Bearing Bore Out-of-Round
0.005 mm
0.0002 in
Valve Lifter Bore Diameter - Production
21.417-21.443 mm
0.843-0.844 in
Intake Manifold
Intake Manifold Cylinder Head Deck Flatness - Measured at Gasket Sealing Surfaces
0.5 mm
0.02 in
Oil Pan and Front/Rear Cover Alignment
Oil Pan to Rear of Engine Block Alignment - at Transmission Bellhousing Mounting Surface
0.0-0.25 mm - Maximum
0.0-0.01 in - Maximum
Front Cover Alignment - at Oil Pan Surface
0.0-0.5 mm
0.0-0.02 in
Rear Cover Alignment - at Oil Pan Surface
0.0-0.5 mm
0.0-0.02 in
Piston
Piston Outside Diameter - Non Coated Skirt - at Size Point
98.969-98.987 mm
3.8964-3.897 in
Piston - Piston Diameter - Measured Over Skirt Coating
98.984-99.027 mm
3.897-3.899 in
Piston to Bore Clearance - Non Coated Skirt - Production
0.013-0.049 mm
0.0005-0.0019 in
Piston to Bore Clearance - Non Coated Skirt - Service
0.013-0.074 mm
0.0005-0.0029 in
Piston - Piston to Bore Clearance - Coated Skirt - Production
-0.027 to +0.029 mm
-0.001 to +0.0011 in
Piston - Piston to Bore Clearance - Coating Worn Off - Service Limit
0.074 mm
0.0029 in
Piston Pin
Piston Pin Clearance to Piston Bore - Production
0.01-0.02 mm
0.0004-0.00078 in
Piston Pin Clearance to Piston Bore - Service Limit
0.01-0.022 mm - Maximum
0.0004-0.00086 in - Maximum
Piston Pin Diameter
23.997-24.0 mm
0.9447-0.9448 in
Piston Pin Fit in Connecting Rod
0.02-0.043 mm - Interference
0.00078-0.00169 in - Interference
Piston Rings
Piston Compression Ring End Gap - Production-Top - Measured in Cylinder Bore
0.23-0.44 mm
0.009-0.017 in
Piston Compression Ring End Gap - Production-2nd - Measured in Cylinder Bore
0.44-0.7 mm
0.017-0.027 in
Piston Oil Ring End Gap - Production - Measured in Cylinder Bore
0.18-0.75 mm
0.007-0.029 in
Piston Compression Ring End Gap - Service-Top - Measured in Cylinder Bore
0.23-0.50 mm - Maximum
0.009-0.0196 in - Maximum
Piston Compression Ring End Gap - Service-2nd - Measured in Cylinder Bore
0.44-0.76 mm - Maximum
0.0173-0.03 in - Maximum
Piston Oil Ring End Gap - Service Limit - Measured in Cylinder Bore
0.18-0.81 mm - Maximum
0.007-0.032 in - Maximum
Piston Compression Ring Groove Clearance - Production-Top
0.04-0.086 mm
0.00157-0.0033 in
Piston Compression Ring Groove Clearance - Production-2nd
0.05-0.088 mm
0.002-0.0034 in
Piston Oil Ring Groove Clearance - Production
-0.008 to +0.176 mm
-0.0003 to +0.0069 in
Piston Compression Ring Groove Clearance - Service-Top
0.04-0.086 mm - Maximum
0.00157-0.0033 in - Maximum
Piston Compression Ring Groove Clearance - Service-2nd
0.05-0.088 mm - Maximum
0.002-0.0034 in - Maximum
Piston Oil Ring Groove Clearance - Service Limit
-0.008 to +0.176 mm - Maximum
-0.0003 to +0.0069 in - Maximum
Valve System
Valve Face Angle
45 degrees
Valve Guide Installed Height - Measured from the Cylinder Head Spring Seat Surface to the Top of the Valve Guide
17.32 mm
0.682 in
Valve Lash
Net Lash - No Adjustment
Valve Lift - Intake
14.02 mm
0.552 in
Valve Lift - Exhaust
13.92 mm
0.548 in
Valve Lifter
Hydraulic Roller
Valve Margin
1.25 mm - Minimum
0.05 in - Minimum
Valve Rocker Arm Ratio
1.70:1
Valve Seat Angle
46 degrees
Valve Seat Runout
0.05 mm - Maximum
0.002 in - Maximum
Valve Seat Width - Intake
1.02 mm
0.04 in
Valve Seat Width - Exhaust
1.78 mm
0.07 in
Valve Spring Free Length
53.40 mm
2.10 in
Valve Spring Installed Height - Intake
45.75 mm
1.8 in
Valve Spring Installed Height - Exhaust
45.75 mm
1.8 in
Valve Spring Pressure - Closed
400 N at 45.75 mm
90 lb at 1.8 in
Valve Spring Pressure - Open
1310 N at 31.75 mm
294 lb at 1.25 in
Valve Stem Clearance - Production - Exhaust
0.025-0.066 mm
0.001-0.0026 in
Valve Stem Clearance - Production - Intake
0.025-0.066 mm
0.001-0.0026 in
Valve Stem Clearance - Service - Exhaust -
0.093 mm Maximum
0.0037 in - Maximum
Valve Stem Clearance - Service - Intake
0.093 mm - Maximum
0.0037 in - Maximum
Valve Stem Diameter - Production
7.955-7.976 mm
0.313-0.314 in
Valve Stem Diameter - Service
7.95 mm - Minimum
0.313 in - Minimum
Valve Stem Oil Seal Installed Height - Measured from the Valve Spring Shim to Top Edge of Seal Body - First Design Seal
18.1-19.1 mm
0.712-0.752 in
© 2009 General Motors Corporation. All rights reserved.
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
