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ENGINE

 

 

Type

 

F 106 A

Cylinders

 

8 V 90°

Bore

mm

81

Piston stroke

mm

71

Displacement

cm3

2926,9

Compression ratio

 

0.8:1

Maximum engine speed

RPM

7000

DIN maximum power

cv

250

Corresponding engine speed

RPM

7000

Maximum torque

kgm

29

Corresponding engine speed

RPM

5000

Italian fiscal rating

cv

33

CRANKSHAFT

 

 

Type

 

flat : cranks at 180

Number of supports

 

5

Main bearings

 

thin‑wall, anti‑friction lining

Thrust bearings

 

2 on the rear support

CONNECTING RODS

 

 

Bearings

 

thin‑wall, anti‑friction lining

PISTONS

 

 

Type

 

conical piston skirt 4 rings

1st slot ring

 

chromium plated A.C. type for seal

2nd and 3rd slot ring

 

conical A.C. type for seal

4th slot ring

 

ROF scraper ring with clamp

Hole for pin

 

not misaligned

pin

 

rod small end

VALVE GEAR

 

 

Drive

 

Toothed belts

Valves

 

over‑head

Camshafts

 

4 over‑head

FUEL SYSTEM

 

 

Electric pump

 

Corona

Double barrel carburetors

 

Weber 40 DCNF

Air filter

 

cartridge type crankcase emission conntro1 system.

LUBRICATION

 

 

Pump

 

gear type

Filters

 

Cartridge type

Pressure relief

 

with spring and ad­justment by spacers

Lubrication pressure

 kg/cm2

5,5 to 6,5 at 6000 RPM  (100° C)

Oil

 

by radiator

 

 

 

COOLING

 

 

Type

 

by centrifugal pump radiator and Thermostatic valve.

Fans

 

electric and automatic

Expansion tank

 

with calibrated valve at 0.9 kg/cm2

IGNITION

 

 

Type

 

battery and coils 2 distributors with idle retarded operating

Firing order

 

1‑5‑3‑7‑4‑8‑2‑6

 

 

 

STARTER

 

 

Type

 

 electric motor

Engagement

 

 electro‑magnetic

Control

 

 by ignition key

 

 

 

ENGINE MOUNTING

 

 

Type

 

 elastic, on 4 mountings and longitudinal tie-rod