McRat
03-06-2005, 09:24 PM
And is the LLY the same part # as the LB7?
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: Where would you find cam specs for the Duramax? socaldieseltech 03-06-2005, 09:29 PM It should be on SI2000. socaldieseltech 03-06-2005, 09:36 PM Engine Mechanical Specifications Application Specification Metric English General Engine Type 90 degree V-8 Displacement 6.6 Liter 402 cu in RPO LLY Bore 103 mm 4.0551 in Stroke 99 mm 3.8976 in Compression Ratio 17.5:1 Engine Compression Test - Minimum 2069 KPa 300 psi Idle Speed 680 RPM Firing Order 1-2-7-8-4-5-6-3 Block Cylinder Bore Diameter - Service Limits 103.11 mm 4.0594 in Cylinder Bore Diameter - Production Value 103.0-103.014 mm 4.0551-4.0557 in Cylinder Bore Out-of-Round - Production Value 0.015 mm 0.0006 in Cylinder Bore Taper - Production Value 0.015 mm 0.0006 in Camshaft Camshaft Bearing Inside Diameter - Service Limit 61.07 mm 2.4043 in Camshaft Bearing Inside Diameter - Production Value 61.00-61.03 mm 2.4016-2.4028 in Camshaft End Play - Service Limit 0.2 mm 0.0079 in Camshaft Journal Diameter - Service Limit 60.92 mm 2.3984 in Camshaft Journal Diameter - Production Value 60.932-60.962 mm 2.3990-2.4001 in Camshaft Lobe Lift - Exhuast - Production Value 5.907 mm 0.2326 in Camshaft Lobe Lift - Intake - Production Value 7.273 mm 0.2863 in Camshaft Runout - Service Limit 0.05 mm 0.0020 in Cooling System Capacity @ Engine RPM 270 L/min @ 3172 RPM Thermostat Full Open Temperature 110 degrees C 230 degrees F Turbocharger Coolant Bypass Valve 60 degrees C 140 degrees F Connecting Rod Connecting Rod Bearing Clearance - Service Limit 0.10 mm 0.0039 in Connecting Rod Bearing Clearance - Production Value 0.036-0.077 mm 0.0014-0.0030 in Connecting Rod Bore Diameter - Bearing End - Production Value 62.958-62.979 mm 2.4789-2.4795 in Connecting Rod Bore Diameter - Pin End - Service Limit 34.53 mm 1.3594 in Connecting Rod Bore Diameter - Pin End - Production Value 34.512-34.522 mm 1.3587-1.3591 in Connecting Rod Length 163.0 mm 6.42 in Connecting Rod Side Clearance - Service Limit 0.54 mm 0.0213 in Connecting Rod Side Clearance - Production Value 0.31-0.49 mm 0.0122-0.0193 in Crankshaft Connecting Rod Journal Diameter - Service Limit 62.88 mm 2.4756 in Connecting Rod Journal Diameter - Production Value 62.902-62.922 mm 2.4764-2.4772 in Crankshaft End Play - Service Limit 0.54 mm 0.0213 in Crankshaft End Play - Production Value 0.04-0.205 mm 0.0016-0.0081 in Crankshaft Main Bearing Clearance - Service Limit 0.014 mm 0.0055 in Crankshaft Main Bearing Clearance - Production Value 0.039-0.070 mm 0.0015-0.0028 in Crankshaft Main Journal Diameter - Service Limit 79.89 mm 3.1453 in Crankshaft Main Journal Diameter - Production Value 79.905-79.925 mm 3.1459-3.1466 in Crankshaft Runout - Service Limit 0.44 mm 0.0173 in Crankshaft Runout - Production Value 0.05 mm 0.0020 in Cylinder Head Surface Flatness - Block Deck - Service Limit 0.2 mm 0.0079 in Surface Flatness - Block Deck - Production Value 0.075 mm 0.0030 in Surface Flatness - Exhaust Manifold Deck - Production Value 0.1 mm 0.0039 in Surface Flatness - Intake Manifold Deck - Production Value 0.1 mm 0.0039 in Exhaust Manifold Surface Flatness- Production Value 0.3 mm 0.0118 in Intake Manifold Surface Flatness - Production Value 0.3 mm 0.0118 in Lubrication System Oil Capacity - with Filter 10 qt 9.5 L Oil Capacity - without Filter 9.2 qt 8.7 L Oil Pressure - Minimum- Hot - at idle 98 KPa 14 psi Oil Pressure - Minimum - 1800 RPM 294 KPa 42 psi Oil Relief Valve Opening Pressure 441 KPa 64 psi Piston Cooling Jet Valve Opening Pressure 196 KPa 29 psi Oil Pump Gear Shaft Outside Diameter - Drive - Service Limit 19.86 mm 0.7819 in Gear Shaft Outside Diameter - Drive - Production Value 19.947-19.960 mm 0.7853-0.7858 in Gear Shaft Outside Diameter - Driven - Service Limit 19.86 mm 0.7819 in Gear Shaft Outside Diameter - Driven - Production Value 19.947-19.960 mm 0.7853-0.7858 in Gear Shaft-to-Bushing - Service Limit Clearance 0.14 mm 0.0055 in Gear-to-Cover Clearance - Drive/Driven - Service Limit 0.109 mm 0.0043 in Gear-to-Cover Clearance - Drive/Driven - Production Value 0.064-0.109 mm 0.0025-0.0043 in Gear-to-Housing Clearance - Drive/Driven - Service Limit 0.22 mm 0.0087 in Gear-to-Housing Clearance - Drive/Driven - Production Value 0.125-0.221 mm 0.0049-0.0087 in Piston Rings Piston Ring End Gap-First Compression Ring - Service Limit 1.37 mm 0.0539 in Piston Ring End Gap-First Compression Ring - Production Value 0.3-0.45 mm 0.0118-0.0177 in Piston Ring End Gap-Second Compression Ring - Service Limit 1.35 mm 0.0531 in Piston Ring End Gap-Second Compression Ring - Production Value 0.50-0.65 mm 0.0197-0.0256 in Piston Ring End Gap-Oil Control Ring - Service Limit 1.20 mm 0.0472 in Piston Ring End Gap-Oil Control Ring - Production Value 0.15-0.35 mm 0.0059-0.0138 in Piston Ring to Groove Clearance-First Compression Ring - Service Limit 0.26 mm 0.0102 in Piston Ring to Groove Clearance-First Compression Ring - Production Value 0.08-0.17 mm 0.0030-0.0067 in Piston Ring to Groove Clearance-Second Compression Ring - Service Limit 0.10 mm 0.0039 in Piston Ring to Groove Clearance-Second Compression Ring - Production Value 0.01-0.03 mm 0.0004-0.0012 in Piston Ring to Groove Clearance-Oil Control Ring - Service Limit 0.12 mm 0.0047 in Piston Ring to Groove Clearance-Oil Control Ring - Production Value 0.01-0.03 mm 0.0004-0.0012 in Pistons and Pins Piston-Piston Diameter 102.948-102.960 mm 4.0531-4.0535 in Piston-Piston Pin Bore Diameter 34.504-34.512 mm 1.3584-1.3587 in Pin-Piston Pin Clearance to Piston Pin Bore - Service Limit 0.017 mm 0.0007 in Pin-Piston Pin Clearance to Piston Pin Bore - Production Value 0.004-0.017 mm 0.0002-0.0007 in Pin-Piston Pin Diameter - Service Limit 34.45 mm 1.3563 in Pin-Piston Pin Diameter - Production Value 34.495-34.5 mm 1.3581-1.3583 in Starter Rated Output 3.5 KW Turbocharger Axial Play 0.11 mm 0.0043 in Radial Play 0.20 mm 0.0079 in Valve System Valves-Valve Face Angle - Production Value 45 degrees Valves-Valve Face Width - Service Limit 2.5 mm 0.0984 in Valves-Valve Face Width - Production Value 2.1 mm 0.0827 in Valves-Valve Head Diameter - Exhaust 31.0 mm 1.22 in Valves-Valve Head Diameter - Intake 33.0 mm 1.30 in Valves-Valve Seat Angle 45 degrees Valves-Valve Stem Diameter 7.0 mm 0.28 in Valves-Valve Stem Oil Seal Installed Height 6.05 mm 0.2382 in Valves-Valve Stem-to-Guide Clearance - Service Limit 0.20 mm 0.0079 in Valves-Valve Stem-to-Guide Clearance - Exhaust - Production Value 0.038-0.071 mm 0.0015-0.0028 in Valves-Valve Stem-to-Guide Clearance - Intake - Production Value 0.030-0.063 mm 0.0012-0.0025 in Valves-Valve Stem-to-Guide Clearance 0.20 mm 0.0079 in Valve Lifters/Push Rods-Push Rod Straightness 0.8 mm 0.0315 in Rocker Arms-Valve Rocker Arm Bore Diameter 22.010-22.035 mm 0.8665-0.8675 in Rocker Arms-Valve Rocker Arm Bore-to-Shaft Clearance - Service Limit 0.20 mm 0.0079 in Rocker Arms-Valve Rocker Arm Bore-to-Shaft Clearance - Production Value 0.010-0.056 mm 0.0004-0.0022 in Rocker Arms-Valve Rocker Arm Ratio - Exhaust 1.69:1 Rocker Arms-Valve Rocker Arm Ratio - Intake 1.36:1 Rocker Arms-Valve Rocker Arm Shaft Diameter - Service Limit 21.85 mm 0.8602 in Rocker Arms-Valve Rocker Arm Shaft Diameter - Production Value 21.979-22.000 mm 0.8653-0.8661 in Valve Springs-Valve Spring Free Length - Production Value 56.6 mm 2.2283 in Valve Springs-Valve Spring Installed Height - Production Value 41 mm 1.6142 in Valve Springs-Valve Spring Load - Exhaust - Service Limit 275 N at 41 mm 61.8 lb at 1.61 in Valve Springs-Valve Spring load - Exhaust - Production Value 315-363 N at 41 mm 71-81.6 lb at 1.61 in Valve Springs-Valve Spring Load - Intake - Service Limit 306 N at 41 mm 68.8 lb at 1.61 in Valve Springs-Valve Spring Load - Intake - Production Value 315-363 N at 41 mm 71-81.6 lb at 1.61 in -------------------------------------------------------------------------------- socaldieseltech 03-06-2005, 09:39 PM LB7: Camshaft Camshaft Bearing Inside Diameter - Service Limit 61.07 mm 2.4043 in Camshaft Bearing Inside Diameter - Production Value 61.00-61.03 mm 2.4016-2.4028 in Camshaft End Play - Service Limit 0.2 mm 0.0079 in Camshaft Journal Diameter - Service Limit 60.92 mm 2.3984 in Camshaft Journal Diameter - Production Value 60.932-60.962 mm 2.3990-2.4001 in Camshaft Lobe Lift - Exhuast - Production Value 5.907 mm 0.2326 in Camshaft Lobe Lift - Intake - Production Value 7.273 mm 0.2863 in Camshaft Runout - Service Limit 0.05 mm 0.0020 in socaldieseltech 03-06-2005, 09:40 PM Looks like the same cam McRat 03-06-2005, 09:44 PM I was wondering if they changed valve events for the EGR. If there is only one PN for the cams, I guess not. socaldieseltech 03-06-2005, 09:48 PM I don't know about the part#'s for sure, but the lift is the same. Doesn't specify duration. | ||