General information
Engine designation - 1MZ FE and 3MZ FE
Engine capacity
- 1MZ-FE - 3.0 L
- 3MZ-FE - 3.3 L
Cylinder numbering (in the direction from the timing belt to the gearbox)
- Right (closer to the barrier) side - 1-3-5
- Left (closer to the radiator) side - 2-4-6
- The firing order of the cylinders is 1-2-3-4-5-6
Cylinder heads
Flatness tolerances for mating surfaces
- Cylinder head - 0.10 mm
- Intake manifold - 0.08 mm
- Exhaust manifolds - 0.50 mm
- Diameter of bolts of fastening of a head of cylinders (minimum) - 8.75 mm
Camshafts and related elements
valve clearance (with a cold engine)
- Inlet - 0.15... 0.25 mm
- Release - 0.25... 0.35 mm
- Bearing journal diameter — 26.959...26975 mm
Radial clearance in the bearing
RX 300, 1999-2003
- Inlet shaft - 0.035... 0.072 mm
- Exhaust shaft - 0.025... 0.062 mm
Limit service value
- Intake shaft - 0.10 mm
- Exhaust shaft - 0.09 mm
Highlander and RX 330 since 2004
- Inlet shaft, bearings No. 4 and No. 5 - 0.025... 0.057 mm
- All other bearings - 0.025...0.062 mm
- Limit service value - 0.10 mm
Cam Height
1939-2003
intake shaft
- Standard value - 42.932...43.032 mm
- Limit service value - 42.78 mm
exhaust shaft
- Standard value - 42.764...42864 mm
- Limit service value - 42.61 mm
Since 2004
intake shaft
- Standard value - 43.132...43.232 mm
- Limit service value - 42.98 mm
exhaust shaft
- Standard value - 43.010...43.110 mm
- Limit service value - 42.86 mm
Axial clearance
- Standard value - 0.040...0.090 mm
- Limit service value - 0.12 mm
Runout Limit (total indicator reading) — 0.06 mm
Lateral clearance in camshaft gears
- Standard value - 0.020...0.200 mm
- Limit service value - 0.30 mm
Protrusion of the timing belt tensioner (1999-2003) — 10.0...10.8 mm
Pushers
- Outer diameter — 30.966...30.975
Bore diameter
- 1999 2003 - 31.000..31 018
- 2004 and later - 31.009... 31.025
Radial clearance of the pusher in the bore
Standard value
- 1999-2003 - 0.024...0.050 mm
- 2004 and later — — 0.033...0.059 mm
Limit service value - 0.070 mm
Oil pump
Radial clearance between driven impeller and pump housing RX 300, 1999 2003
- Standard value - 0.250...0.325 mm
- Limit service value - 0.30 mm
Highlander, 2001-2003 and RX 330 2004 and up
- Standard value - 0.125... 0.152 mm
- Limit service value - 0.30 mm
Highlander 2004 and up
- Standard value - 0.250...0.325 mm
- Limit service value - 0.50 mm
Clearance on the heads of the teeth of the impellers
Highlander 1999 2003 and all RX 300, 330 models
- Standard value - 0.11... 0.24 mm
- Limit service value - 0.35 mm
Highlander 2004 and up
- Standard value - 0.060...0.180 mm
- Limit service value - 0.30 mm
Axial impeller clearance
- Standard value - 0.03...009 mm
- Limit service value - 0.15 mm
Tightening torques for threaded connections, Nm (unless otherwise stated)
crankshaft pulley bolt
- 1999-2003 — 215
- 2004 and later - 220
Camshaft bearing cap bolts - 16
Bolts of fastening of a head of cylinders (12-sided)
- Stage 1 - 54
- Stage 2 - Tighten 90°
Bolts of fastening of a head of cylinders (in recesses) — 19
Faceplate bolts* - 83
Bolt of a gear pulley of a final camshaft - 125
Engine Support Bracket Bolts/Nuts - 28
Exhaust manifold nuts - 49
Exhaust manifold heat shield bolts - 9
Idler pulley bolts
- № 1 (to the cylinder block) — 34
- № 2 (to bracket) — 43
Intake camshaft sprocket bolt
- RX Z00, 1999-2003 - 88
- Highlander and RX 330 2004 and up - 125
Intake manifold
Lower intake manifold bolts/nuts - 15
Upper intake manifold bolts/nuts
- 1999-2003 - 43
- 2004 and later - 28
Bolts of fastening of the lower section of a crankcase of the engine to the block of cylinders
- 10mm head bolt - 8
- 12 mm head bolt - 20
Oil pan bolts
Aluminum section Highlander
- 10mm head bolt - 8
- 12 mm head bolt - 20
RX 300, 330
- 10mm head bolt - 8
- 12 mm head bolt - 20
- 14mm head bolt - 37
- Steel section - 8
Oil pump mounting bolts
1999-2003
- 10mm head bolt - 8
- 12 mm head bolt - 20
2004 and later
- 10mm head bolt - 8
- 12mm socket bogle - 20
- Bopt with 14 mm head - 43
- Oil pump cover screws - 10
- Bolts of fastening of an oil receiver of a branch pipe — 8
bolts (front) timing belt covers
RX300, 330 — 9
Highlander — 9
- bolts (rear) timing belt covers - 9
- Timing belt tensioner bolts - 27
- Bolts of the body of the rear cuff of the crankshaft - 8
- Cylinder head cover bolts - 8
Variable gas distribution system (VVT)
- Oil control valve filter plug - 43
- Bolt of fastening of the operating oil valve - 8
- Nut of fastening of the executive device of an inlet camshaft ** — 150
* Apply thread locking compound to threads before installation.
** With left hand thread.