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11A-0-1
ENGINE
F8QT SERIES
CONTENTS
GENERAL INFORMATION ............................... 11A-0-3
1. SPECIFICATIONS ................................... 11A-1-1
SERVICE SPECIFICATIONS ........................ 11A-1-1
TORQUE SPECIFICATIONS ........................ 11A-1-5
FORM-IN-PLACE GASKET ......................... 11A-1-8
2. SPECIAL TOOLS .................................... 11A-2-1
3. CRANKSHAFT PULLEY .............................. 11A-3-1
4. TIMING BELT .......................................
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11A-0-2 NOTES Mitsubishi Motors Corporation July 1996 PWEE9602 E
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11A-0-3 F8QT ENGINE - General Information GENERAL INFORMATION SECTIONAL VIEW OF ENGINE REN0137 Mitsubishi Motors Corporation July 1996 PWEE9602 E
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11A-0-4 F8QT ENGINE - General Information SECTIONAL VIEW OF ENGINE REN0138 Mitsubishi Motors Corporation July 1996 PWEE9602 E
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11A-0-5 F8QT ENGINE - General Information SECTIONAL VIEW OF ENGINE REN0139 Mitsubishi Motors Corporation July 1996 PWEE9602 E
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11A-0-6 F8QT ENGINE - General Information Description Specifications Type F8QT diesel engine Number and arrangement of cylinders 4 in-line Combustion chamber Swirlchamber 3 Total displacement 1870 cm Cylinder bore´ stroke 80´ 93 mm Compression ratio 21 Valve mechanism Single overhead camshaft Number of valves Intake 4 Exhaust 4 Valve timing Intake opening 0_ BTDC Intake closing 18_ ABDC Exhaust opening 41_ BBDC Exhaust closing 0_ ATDC Turbocharger Exhaust gas turbocharger Intercooler (charge coo
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11A-1-1 F8QT ENGINE - Specifications 1. SPECIFICATIONS SERVICE SPECIFICATIONS Item Standard Limit Cylinder head Flatness of cylinder head surfacemm 0.05 - Cylinder head gasket Gasket thickness Projecting height of Number of holes; 2 1.4 - mm piston - 0.073 Projecting height of Number of holes; 1 1.5 - piston 0.073 - 0.206 Projecting height of Number of holes; 3 1.6 - piston 0.206 - Cylinder block Cylinder diameter mm Class A 80.006 - 80.024 - Class B 80.256 - 80.274 - Pistons Piston-to-cylinder
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11A-1-2 F8QT ENGINE - Specifications Item Standard Limit Camshaft Cam height Intake 8.5 - Exhaust 10.34 - Camshaftend play mm 0.048 - 0.133 - Radial clearance mm 0.050 - 0.150 - Valves Valves clearance Checking Intake 0.15 - 0.25 - mm Exhaust 0.35 - 0.45 - Adjusting Intake 0.2 - Exhaust 0.4 - Valve diameter mm Intake 36.22 - Exhaust 31.62 - Valve seat angle Intake 60_ - Exhaust 45_ - Valve seat width mm Intake 1.8± 0.2 - Exhaust 1.8 - Valve springs Length mm Loading 0 N 43.9 - Loading 250 N 36.8
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11A-1-3 F8QT ENGINE - Specifications Item Standard Limit Intermediate shaft Inner bearing mm 39.5 - Outer bearing mm 40.5 - End play mm 0.07 - 0.15 - Crankshaft End play mm 0.07 - 0.23 - Thrust washer thickness mm 2.30 - 2.50 - Radial clearance (main bearings) mm 0.04 - 0.07 - Main bearing journals Ovality mm - 0.0025 Taper mm - 0.005 Diameter mm Standard (blue) 54.785 - 54.805 - Standard (red) 54.795 - 54.805 - Undersize 1 54.550 - 54.560 - Big-end bearing journals Ovality mm - 0.0025 Taper mm
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11A-1-4 F8QT ENGINE - Specifications Item Standard Limit Flywheel Axial throw measured at a radius of 80 mm mm - 0.07 Oil pump End play mm 0.02 - 0.08 - Clearance, gears to pump body (backlash) mm 0.10 - 0.24 - Bearing clearance, drive shaft mm 0.024 - 0.49 - Number of teeth on oil pump sprocket 8 - Oil pressure regulator spring Length mm Loading 0 N 74.6 - Loading 10.2 N 48.2 - Loading 70 N 41.2 - Lubrication system Oil capacity, exclusive of oil filter L 4.8 - Oil capacity, inclusive of oil fi
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11A-1-5 F8QT ENGINE - Specifications TORQUE SPECIFICATIONS Items Nm Crankshaft pulley Crankshaft pulley bolt 120 Timing belt Camshaftsprocketbolt 50 Water pump Water pump pulley bolt 20 Water pump bolt 12.5 Thermostat Thermostat coverbolt 10 Thermostat housing bolt 10 Bleedscrew 0.6 Glow plugs Glow plug 22.5 Glow plug nut 5 Turbocharger Turbocharger nut 45 Exhaust downpipe connector nut 45 Oil supply pipe union nut 35 Oil return pipe union nut 25 Coolant supply pipe banjo bolt 25 Coolant supply
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11A-1-6 F8QT ENGINE - Specifications Items Nm Rocker cover and cylinder head Rocker cover nut 5 Cylinder head bolt 30+50_±4_+fullyslacken+25+213_±2_ + (warm up)120_ ± 7_ Camshaft, intake and exhaust valves Camshaftbearing cap bolt (M6) 10 Camshaftbearing cap bolt (M8) 20 Glow plug 22.5 Fuel injection nozzle 70 Vacuum pump Vacuum pump bolt 22 Vacuum hose union nut 22 Oil cooler and oil filter Thermostat housing nut 60 Plug 35 Oil cooler nut 60 Oil pan, oil pump and oil jets Oil drain plug 15 Oil
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11A-1-7 F8QT ENGINE - Specifications Items Nm Fuel injection pump Injection pipe union nut 22.5 Screwed sleeve/nut assembly 90 Nut 70 Injection pump bolt 22.5 Bolt 20 Pistons and connecting rods Connecting rod cap bolt 45 Flywheel Flywheel bolt 53 Crankshaft and cylinder block Main bearing cap bolt 65 Front plate bolt 12.5 Mitsubishi Motors Corporation July 1996 PWEE9602 E
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11A-1-8 F8QT ENGINE - Specifications FORM-IN-PLACE GASKET The engine has several areas where the form-in-place gasket (FIPG) is in use. To ensure that the gasket fully serves its purpose, it is necessary to observe some precautions when applying the gasket. Bead size, continuity and location are of paramount importance. Too thin a bead could cause leaks. Too thick a bead, on the other hand, could be squeezed out of location, causing blocking or narrowing of the fluid feed line. To eliminate the
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11A-2-1 F8QT ENGINE - Special Tools 2. SPECIAL TOOLS Tool Number Name Use MB990767 Camshaftsprocket Removal of camshaft sprocket holder MB991614 Angle gauge Tightening cylinder head bolts MB996014 Valve spring Removal of valve spring splitcones compressor MB996015 Flywheel stopper Locking the flywheel MB996016 Reamer Reaming valve guides MB996018 Slip gauge Measuring the crankshaftend play MB996020 Valve guide Pressing invalve guides remover MB996021 Valve stem seal Removal of valve guide seal r
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11A-2-2 F8QT ENGINE - Special Tools Tool Number Name Use MB996023 Valve seat installer Pressing inintake valve seat MB996024 Reamer Reaming valve guides MB996025 Bearing puller Removal of intermediate shaft outerbearing MB996026 Bearing puller Removal of intermediate shaft inner bearing MB996027 Bearing installer Installation of intermediate shaft inner bearing MB996028 Bearing installer Installationof intermediateshaft outerbearing MB996029 Valve guide Pressing invalve guides installer MB996030
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11A-2-3 F8QT ENGINE - Special Tools Tool Number Name Use MB996032 Tension gauge Measuring timing beltdeflection MB996033 Tension gauge Measuring timing beltdeflection MB996034 Sprocketstopper Removal of intermediate shaft sprocket MB996036 Hexagon socket Removal of injection pump sprocket screwed sleeve/nut assembly MB996037 Sprocketadapter Adjustment of fuelinjection pump MB996038 Oil seal installer Installationofcrankshaftoilseal(flywheelend) MB996039 Oil seal installer Installation of interme
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11A-2-4 F8QT ENGINE - Special Tools Tool Number Name Use MB996042 Oil seal installer Installation of camshaft oil seal MB996043 Sprocketstopper Locking the injection pump sprocket MD998715 Pulley holder pin Retainingthecamshaftsprocket(usetogether withMB990767) Mitsubishi Motors Corporation July 1996 PWEE9602 E
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11A-3-1 F8QT ENGINE - Crankshaft Pulley 3. CRANKSHAFT PULLEY 2 120 Nm 1 REN0143 Removal steps AA""AA 1. Crankshaft pulley bolt 2. Crankshaft pulley REMOVAL SERVICE POINT AA" CRANKSHAFT PULLEY BOLT REMOVAL Use special tool MB996015 to hold the flywheel during removal. MB996015 REN0144 Mitsubishi Motors Corporation July 1996 PWEE9602 E
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11A-3-2 F8QT ENGINE - Crankshaft Pulley INSTALLATION SERVICE POINT "AA CRANKSHAFT PULLEY INSTALLATION (1) Use special tool MB996015 to hold the flywheel during installation. MB996015 REN0144 (2) Apply a locking agent to the screw thread of the bolt. Tighten the bolt to the specified torque. REN0145 Mitsubishi Motors Corporation July 1996 PWEE9602 E
