General
Manufacturer TOYOTA
Model/Year 1HZ (HZJ75, 80) 1989 -
L/(CID) 4,163cc DIESEL No. of Cylinders 6
Bore & Stroke 94.0mm X 100.0mm
Firing Order 1 – 4 – 2 – 6 – 3 – 5
Compression Ratio 22.7 : 1 Idle Speed 650 rpm manual
Comp. Pressure @ RPM 3.6 MPa @ 250 rpm 2.65 MPa min. <490 kPa diff.
Oil Pressure 29 kPa min at idle Oil Capacity & Grade 9.8 ltr dry CC-CD
Injection Timing 0° BTDC Plunger stroke - 1.03 – 1.09 mm
Block
Bore Diameter Standard 94.000 – 94.030 mm
Maximum Overbore 1.00 mm
Liner Flange Height & Fit N/A
Crankshaft Housing Bore 71.000 – 71.018 mm
Camshaft Housing Bore 38.000 – 38.02 mm
Block Deck Height 0.20 mm warp limit
Pistons & Rings
Piston to Bore Clearance 0.04 – 0.06 mm @ 58.6 mm down from the crown
Piston Protrusion 0.405 – 0.655 mm (Graded head gaskets – refer notes.)
Gudgeon Pin Diameter 29.000 – 29.012 mm
Gudgeon Pin Clearance 0.004 – 0.012 mm Limit: 0.03 mm
Ring Equipment Top: 2.0 mm (½K), 2nd: 2.0 mm, Oil: 4.00 mm
Piston Ring End Gap Top: 0.27 – 0.54 mm, 2nd: 0.40 – 0.62 mm, Oil: 0.20 – 0.52 mm
Ring to Groove Clearance Top: 0.050 – 0.095 mm, 2nd: 0.06 – 0.10 mm, Oil: 0.03 – 0.07 mm
Connecting Rods
Big End Bore 62.014 – 62.032 mm
Pin End Bore 32.000 – 32.030 mm
Centre to Centre
Big End Width
Bush ID Finished 29.008 – 29.020 mm
Rod Side Clearance 0.10 – 0.20 mm Limit: 0.30 mm
Bend/Twist 0.03 mm/100mm bend 0.15 mm/100 mm twist
Camshaft
Journal Diameters 1: 34.969 – 34.985 mm 2 –7: 27.986 – 27.998 mm
End Play 0.10 – 0.20 mm Limit: 0.30 mm
Oil Clearance 1: 0.022 – 0.074 mm 2 – 7: 0.030 – 0.066 mm Limit: 0.1 mm
Minimum Lobe Height Inlet 55.10 mm Exhaust 55.95 mm Limit In 54.6 & Ex 55.4 mm
Bend Limit 0.10 mm circle runout
ENGINE SPECIFICATIONS
September 1999 ES-TOY11
