Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSISUZU2004ASCENDER 2WD L6-4.2LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYSYSTEM SPECIFICATIONS
2004 Isuzu Ascender 2WD L6-4.2L
System Specifications
2004 Isuzu Ascender 2WD L6-4.2LSECTION System Specifications
Cylinder Deck Surface Flatness 0.08 mm (0.003 inch)
Cylinder Bore Diameter 92.990-93.006 mm (3.6638-3.6644 inch)
Cylinder Bore Out-of-Round 0.013 mm (0.0005 inch)
Cylinder Liner Recession 0.015 mm (0.0006 inch)
Connecting Rod Bearing Clearance 0.021-0.065 mm (0.0009-0.0025 inch)
Connecting Rod Bore Diameter - Bearing End 60.322-60.388 mm (0.0009-0.003 inch)
Connecting Rod Bore Out-of-Round-Bearing End 0.005 mm (0.0002 inch)
Connecting Rod Side Clearance 0.05-0.35 mm (0.0019-0.0137 inch)
Crankshaft End Play 0.112-0.388 mm (0.0044-0.0153 inch)
Crankshaft Main Bearing Clearance 0.012-0.064 mm (0.0004-0.0025 inch)
Crankshaft Main Journal Diameter 69.968-69.984 mm (2.7567-2.7574 inch)
Crankshaft Main Journal out-of-round 0.005 mm (0.0002 inch)
Crankshaft Main Journal Taper 0.005 mm (0.0002 inch)
Piston Ring End Gap
First Compression Ring 0.15-0.3 mm (0.0059-0.0118 inch)
Second Compression Ring 0.36-0.51 mm (0.0142-0.0201 inch)
Oil Control Ring 0.250-0.760 mm (0.0098-0.0299 inch)
Piston Ring to Groove Clearance
First Compression Ring 0.043-0.093 mm (0.0017-0.0037 inch)
Second Compression Ring 0.043-0.093 mm (0.0017-0.0037 inch)
Oil Control Ring 0.059-0.215 mm (0.0023-0.0085 inch)
Piston - Piston Diameter 92.971 - 93.005 (3.6603-3.6616 inch)
Piston - Piston Pin Bore Diameter 23 002-23 008 (0.9056-0.9058 inch)
Piston - Piston to Bore Clearance -0.015-0.035 mm (-0.0006-0.0014 inch)
Pin - Piston Pin Clearance to Connecting Rod Bore; 0.001 -0.018 mm (0.0004-0.0007 inch)
Pin - Piston Pin Clearance to Piston Pin Bore; 0.003-0.012 mm (0.00012-0.0005 inch)
Pin - Piston Pin Diameter 22.996-22.999 mm (0.9054-0.9055 inch)
Crankshaft Balancer Bolt
First Pass 150 Nm (110.6 ft. lbs.)
Final Pass 180 degrees
Crankshaft Main Bearing Cap Bolt
First Pass 25 Nm (18 ft. lbs.)
Final Pass 180 degrees
Cylinder Bore Diameter 92.990-93.006 mm (3.6638-3.6644 inch)
Cylinder Bore Out-of-Round 0.013 mm (0.0005 inch)
Cylinder Liner Recession 0.015 mm (0.0006 inch)
Connecting Rod Bearing Clearance 0.021-0.065 mm (0.0009-0.0025 inch)
Connecting Rod Bore Diameter - Bearing End 60.322-60.388 mm (0.0009-0.003 inch)
Connecting Rod Bore Out-of-Round-Bearing End 0.005 mm (0.0002 inch)
Connecting Rod Side Clearance 0.05-0.35 mm (0.0019-0.0137 inch)
Crankshaft End Play 0.112-0.388 mm (0.0044-0.0153 inch)
Crankshaft Main Bearing Clearance 0.012-0.064 mm (0.0004-0.0025 inch)
Crankshaft Main Journal Diameter 69.968-69.984 mm (2.7567-2.7574 inch)
Crankshaft Main Journal out-of-round 0.005 mm (0.0002 inch)
Crankshaft Main Journal Taper 0.005 mm (0.0002 inch)
Piston Ring End Gap
First Compression Ring 0.15-0.3 mm (0.0059-0.0118 inch)
Second Compression Ring 0.36-0.51 mm (0.0142-0.0201 inch)
Oil Control Ring 0.250-0.760 mm (0.0098-0.0299 inch)
Piston Ring to Groove Clearance
First Compression Ring 0.043-0.093 mm (0.0017-0.0037 inch)
Second Compression Ring 0.043-0.093 mm (0.0017-0.0037 inch)
Oil Control Ring 0.059-0.215 mm (0.0023-0.0085 inch)
Piston - Piston Diameter 92.971 - 93.005 (3.6603-3.6616 inch)
Piston - Piston Pin Bore Diameter 23 002-23 008 (0.9056-0.9058 inch)
Piston - Piston to Bore Clearance -0.015-0.035 mm (-0.0006-0.0014 inch)
Pin - Piston Pin Clearance to Connecting Rod Bore; 0.001 -0.018 mm (0.0004-0.0007 inch)
Pin - Piston Pin Clearance to Piston Pin Bore; 0.003-0.012 mm (0.00012-0.0005 inch)
Pin - Piston Pin Diameter 22.996-22.999 mm (0.9054-0.9055 inch)
Crankshaft Balancer Bolt
First Pass 150 Nm (110.6 ft. lbs.)
Final Pass 180 degrees
Crankshaft main bearing torque Sequence:
Crankshaft Main Bearing Cap Bolt
First Pass 25 Nm (18 ft. lbs.)
Final Pass 180 degrees
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.