Lambro 550

Italian Production Dates: August 1965 - December 1967
Chassis Prefix: M42/2
IGM.4125.OM

The Lambro 550 launched in 1965 was the first of the Lambro models to feature twin headlights, designed to improve visability at night. Along with the 450, the Lambro 550 has solid 10" wheels rather than the 'pepper-pot' split rims on the Lambro 200. The Lambro 550 can often identified by the large horn/badge-plate rather than the smaller horn cover on all models from the Series 1 175 through to the 500L. The Lambro 550 also saw the introduction of features such as the interior light.

The Lambro 550 has become an iconic vehicle in countries such as Vietnam where many where exported in the 1960s. A great deal are still being used today.

Technical Characteristics

Maximum Length:	Open Body Type:  2915mm	Maximum height:	Open Body: 1685mm
	Closed Body Type: 31?0mm		Closed body: 1670mm
Maximum width :	1380mm	Track width:	1210mm
Ground Clearance:	145mm	Wheelbase:	1970mm

 

Frame and Cabin

Frame	Tubular Steel backbone with superstructures for the support of the cab and the body. Bracket for spare wheel
Front suspension:	by means of rocker arms connected to levers with end balls compressing through guide pistons two variable pitch helical springs. Shock Absorbers
Rear suspension:	with two longitudinal leaf springs anchored to the frame at the front and shackled at the rear. Shock Absorbers
Cabin:	Pressed steel, rear window, instrument panel, holes for attaching the door hinges, rear-view mirror.
Windscreen:	Curved glass windscreen with rubber beading.
Windscreen Wiper:	Electric windscreen wiper
Seat:	Double seat bench over engine cover
Doors:	Doors (accessory) complete with glass windows (left hand door with normal type lock, right hand door with locking device in handle).

 

Wheels and Brakes

Wheels	Interchangeable wheels	Tyres:	front: 4.50 x 10”
	Complete Rims in pressed steel		rear: 4.50 x 10” T (T mark indicated heavy tread tyres for commercial use)
Brakes: Internal expansion brakes.	mechanically controlled by lever on the right handlebar for the front brake - foot operated hydraulic rear brakes
	Hand lever parking brakes on rear wheels.

 

Rear Axle:

Consisting of:	central differential box:
	rear axle housing
	sliding half-shafts easily withdrawn by removal of wheel flange

Engine

Engine:	Single cylinder two stoke, forced air cooled.	Carburettor	Carburettor Dellorto SH 1/20
Bore:	66	Max. Jet:	90
Stroke:	58	Pilot Jet:	45
Capacity:	198cc	Starter Jet:	50
Output:	9.2 H.P. at 4800 R.P.M.	Atomizer	5899-2
Compression Ratio	7

Starter:	Kick-start and / or Electric Start
Clutch:	Multi-disc type in oil bath
Gear Box:	gearbox with four speeds and reverse constant mesh gears ,alternately splined to the secondary shaft by coupling sliders
Transmission	From engine to gearbox: by gears with flexible coupling.
	From gearbox to rear axle: by hollow shaft with splined couplings and two flexible couplings

 

Dry Weight with driver.	Open Type Body: 455kg	Max. pay load	Open Body: 540kg
	Box Type body: 445kg		Closed Body: 550kg
Maximum permissible total weight (dry weight + accessories & fuel + crew + load)	995kg	Tank Capacity:	11.5 litres
Consumption (to CUNA rules) : 6.2x 100/km

Documents and Pictures

 

 

Lambro 450

Italian Production Dates: October 1965 - April 1966
Chassis Prefix: M41/3
IGM.4188.OM

The Lambro 450 although sharing many similarities with the Lambro 550, retained the single headlight of the earlier Lambro models. Although designed in looks around the Lambro 175, it can be differentiated by the cabin, which instead of an opening for a canvas back, has a solid panel and window, the Lambro 200 style chassis and solid 10" wheels. The Lambro 450 still retained the 175cc engine and the cross pressings on the pick-up style back although on the 450, the side panels on the back were removable.

The Lambro 450 saw the introduction of new features such as the interior light and solid 10" wheels.

Maximum Length:	Open Body Type:  2885mm	Maximum height:	Open Body: 1665mm
	Closed Body Type: 2960mm		Closed body: 1650mm
Maximum width :	1330mm	Track width:	1210mm
Ground Clearance:	135mm	Wheelbase:	1970mm

 

Frame and Cabin

Frame	Tubular Steel backbone with superstructures for the support of the cab and the body. Bracket for spare wheel
Front suspension:	by means of rocker arms connected to levers with end balls compressing through guide pistons two variable pitch helical springs. Shock Absorbers
Rear suspension:	with two longitudinal leaf springs anchored to the frame at the front and shackled at the rear. Shock Absorbers
Cabin:	Pressed steel, rear window, instrument panel, holes for attaching the door hinges, rear-view mirror.
Windscreen:	Curved glass windscreen with rubber beading.
Windscreen Wiper:	Electric windscreen wiper
Seat:	Double seat bench over engine cover
Doors:	Doors (accessory) complete with glass windows (left hand door with normal type lock, right hand door with locking device in handle).

 

Wheels and Brakes

Wheels	Interchangeable wheels	Tyres:	front: 4.00 x 10”
	Complete Rims in pressed steel		rear: 4.00 x 10” T (T mark indicated heavy tread tyres for commercial use)
Brakes: Internal expansion brakes.	mechanically controlled by lever on the right handlebar for the front brake - foot operated hydraulic rear brakes	Tyre pressures at full load:	Front: 2.5 kg/cm square
	Hand lever parking brakes on rear wheels.		Rear: 3.5 kg/cm square

 

Rear Axle:

Consisting of:	central differential box:
	rear axle housing
	sliding half-shafts easily withdrawn by removal of wheel flange

Engine

Engine:	Single cylinder two stoke, forced air cooled.	Carburettor	Carburettor Dellorto SH 1/20
Bore:	62	Max. Jet:	88
Stroke:	58	Pilot Jet:	50
Capacity:	175cc	Starter Jet:	55
Output:	8.45 H.P. at 4800 R.P.M.	Atomizer	Part Number: 00412401
Compression Ratio	7.1

Clutch:	Multi-disc type in oil bath
Gear Box:	gearbox with four speeds and reverse constant mesh gears ,alternately splined to the secondary shaft by coupling sliders
Transmission	From engine to gearbox: by gears with flexible coupling.
	From gearbox to rear axle: by hollow shaft with splined couplings and two flexible couplings

 

Dry Weight with driver.	Open Type Body: 452kg	Max. pay load	Open Body: 425kg
	Box Type body: 432kg		Closed Body: 450kg
Maximum permissible total weight (dry weight + accessories & fuel + crew + load)	882kg	Tank Capacity:	11.5 litres
Consumption (to CUNA rules) : 4.95x 100/km

 

Documents and Pictures

 

NOTE: Technical specifications have been taken directly from Innocenti documentation eg User Manuals for each model. Later workshop manuals and amendments made after the publication of each manual may mean that these details appear differently in other documentation and may be different for your particular model.