Maserati 4200cc F136 UC - F136 UD

Engine Overhaul

Technical Description

Type code General Characteristics

F136 UC(M139 P

Eight

Cycle

8-90° V

Number and position of cylinders

4

Number of valves per cylinder

Ø 92, stroke 79.8 mm

Bore and stroke

530.479 cm 3

Displacement per unit

4244 cm 3

Total displacement

52.74 cm 3

Combustion chamber volume

6.6 mm

Height of combustion chamber in head

11:1

Compression ratio

Valve timing with 4 valves per cylinder and hydraulic clearance compensation ∅ 35 mm Intake valve ∅ 37.8 mm Exhaust valve ∅ 31.0 mm Lift on exhaust valves without clearance: Intake 9.5 mm ±0.05 Exhaust 9.3 mm ±0.03

50°

Timing adjustment on intake stroke

-15°

Timing variator deactivated

35°

Timing variator activated

0.05 mm

Intake valve lift at TDC with variator deactivated

0.57mm

Exhaust valve lift at TDC with timing 0°

1.8.6.2.7.3.4.5

Firing order:

Maserati Academy

6