Redfox340 Posted March 16, 2003 Report Share Posted March 16, 2003 Ok, I use the search function, and other search engines and on the web and I can't get an accurate account; this is what I want to know; 1.) First, what's the height of the DOHC (both 1991 - 1994 and 1995+) from the top point of the intake plenum to the bottom of the oil pan? 2.) What are the dimensions of the intake and exhaust valves (diameter and length)? Thanks guys for the help! - RedFox340 Quote Link to comment Share on other sites More sharing options...
GPRACER Posted March 17, 2003 Report Share Posted March 17, 2003 Hope this helps! Document ID# 57244 1996 Pontiac Grand Prix -------------------------------------------------------------------------------- Engine Mechanical Specifications Application Millimeters Inches General Data Engine Type -- 60° V-6 Displacement -- 240 Cu In Liter (VIN) -- 3.4 (X) RPO -- LQ1 Bore 92 3.622 Stroke 84 3.307 Compression Ratio -- 9.50:1 Firing Order -- 1-2-3-4-5-6 Oil Pressure @ Operating Temperature 103 kPa @ 1100 RPM 15 psi min @ 1100 RPM Cylinder Bore Diameter 92.020-92.038 3.6228-3.6235 Out Of Round Maximum 0.010 0.0004 Taper -- Thrust Side Maximum 0.013 0.00051 Center Distance 111.76 4.4 Piston Diameter-gauged at skirt 10.44 mm (0.413 in) below centerline of piston pin bore 91.985-92.000 3.6215-3.6220 Clearance 0.020-0.052 0.0008-0.0020 Pin Bore 23.003-23.010 0.9056-0.9059 Piston Ring Compression Groove Clearance 1st and 2nd 0.033-0.079 0.0013-0.0031 Gap (at gauge diameter) 1st 0.20-0.45 0.008-0.018 Gap (at gauge diameter) 2nd 0.56-0.81 0.022-0.032 Oil Groove Clearance 0.028-0.206 0.0011-0.0081 Gap (segment at gauge diameter) 0.25-0.76 0.0098-0.0299 Tension 1st 27.6 N 6.2 lbs Tension 2nd 19.8 N 4.5 lbs Tension Oil 31.2 N 7.0 lbs Piston Pin Diameter 22.9915-22.9964 0.9052-0.9054 Clearance 0.0066-0.0185 0.00026-0.00073 Fit In Rod 0.0165-0.0464 0.0006-0.0018 Crankshaft Main Journal Diameter-All 67.239-67.257 2.6472-2.6479 Taper-Maximum 0.005 0.0002 Out Of Round-Maximum 0.005 0.0002 Cylinder Block Main Bearing Bore Diameter 72.155-72.168 2.8407-2.8412 Crankshaft Main Bearing Inner Diameter 67.289-67.316 2.6492-2.6502 Main Bearing Clearance 0.019-0.064 0.0008-0.0025 Main Thrust Bearing Clearance 0.032-0.077 0.0013-0.0030 Crankshaft End Play 0.06-0.21 0.002-0.008 Crankpin Diameter 50.768-50.784 1.9987-1.9994 Taper-Maximum 0.005 0.0002 Out Of Round-Maximum 0.005 0.0002 Rod Bearing Bore Diameter 53.962-53.984 2.124-2.125 Rod Inner Bearing Diameter 50.812-50.850 2.000-2.002 Rod Bearing Clearance 0.018-0.062 0.0007-0.0024 Rod Side Clearance 0.18-0.44 0.0071-0.0173 Camshaft Lobe Lift (Intake) 9.398 @ 108° Crank ATDC 0.370 @ 108° Crank ATDC Lobe Lift (Exhaust) 9.389 @ 115° Crank BTDC 0.370 @ 115° Crank BTDC Timing Reference Set Position with Camshaft Timing Flats in Clamped Position-Right Bank -- TDC-1Piston Exhaust Stroke +/- 2° of Crankshaft Timing Reference Set Position with Camshaft Timing Flats in Clamped Position-Left Bank -- TDC-4 Piston Exhaust Stroke +/- 2° of Crankshaft Journal Diameter 54.973-55.001 2.1643-2.1654 Bore Inside Diameter 55.050-55.075 2.1673-2.1683 Journal Clearance 0.049-0.102 0.0019-0.0040 Valve System Lifter -- Hydraulic Face Angle -- 45° Seat Angle -- 46° Seat Runout-Maximum 0.075 0.0030 Seat Width Intake 1.25-1.50 0.0492-0.0591 Exhaust 1.60-1.90 0.063-0.0748 Valve Margin-Minimum 0.75 0.029 Stem Clearance Intake 0.028-0.066 0.0011-0.0026 Stem Clearance Exhaust 0.046-0.084 0.0018-0.0033 Valve Spring Free Length 42.04 1.6551 Load (Closed)-All 289 N @ 35.56 65 lb @ 1.400 Load (Open)-All 711 N @ 26.16 160 lb @ 1.030 Approximate Number of Active Coils -- 4 Oil Pump Valve to Bore Clearance 0.038-0.089 0.0015-0.0035 Gear Lash 0.094-0.195 0.0037-0.0077 Gear Pocket Depth 30.53-30.61 1.202-1.205 Diameter 38.202-38.252 1.504-1.506 Gear Length 30.45-30.48 1.199-1.20 Diameter 38.05-38.10 1.498-1.50 Side Clearance 0.08-0.10 0.003-0.004 End Clearance 0.05-0.152 0.002-0.006 -------------------------------------------------------------------------------- Document ID# 57244 1996 Pontiac Grand Prix Quote Link to comment Share on other sites More sharing options...
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