Engine overhaul technical data

Dimensions and clearances in mm.

Total information

Compression in cylinders (all engines) — 9.84 kgf/cm²

The maximum pressure difference in the cylinders is 1.3 kgf / cm²

Oil pressure (minimum):

V6 and V8 engines 5.0 and 5.7 liters

• at 1000 rpm — 0.4 kgf/cm²
• at 2000 rpm — 1.2 kgf/cm²

V8 engine 7.4 liters

• at 500 rpm — 0.66 kgf/cm²
• at 2000 rpm — 1.65 kgf/cm²

Cylinders

Diameter:



Taper, not more than - 0.02

Ovality, not more than - 0.05

Cylinder head and valve train

Head deformation, not more than — 0.1

The minimum width of the chamfer of the valve is 0.8

Clearance between guide sleeve and valve:



Valve spring free length:

• engines V6 and V8 5.0 and 5.7l - 51.56
• V8 engine 7.4 liters - 53.84

Valve spring length after installation:

• engines V6 and V8 5.0 and 5.7 l - 51.56
• 1987-1995 — 43,66
• Since 1996 - 42.4-43.6
• V8 engine 7.4 liters 1987-1994 - 45.64

Crankshaft and connecting rods

Diameter of main journals:



Main bearing clearance:



Crankpin diameter:



Clearances in connecting rod bearings:



Axial play of the connecting rod:




Axial play of the crankshaft:

Pistons and rings

Clearance between piston and cylinder:



Gap between ring and piston groove:



Piston ring gap:

Tightening torques (N·m)