Mercedes-Benz M 130 Petrol engine

Mercedes Benz

Manufacturer:	Mercedes Benz
Production period:	1967-1980
Style:	Six-cylinder - inline engine
Combustion principle:	gasoline engine
Displacement:	2.8 liters (2778 cc)
Previous model:	M 108 / 129
Successor:	M 110

The Mercedes-Benz M130 is a six-cylinder in - line engine gasoline engine with 2.8 liter displacement from Daimler-Benz, which was produced from 1967 to 1980.

The type was of the 2.5-liter engines M 108 / 129 (with the carburetor or intake manifold injection derived) and had instead of the paired cylinder arrangement a uniform distance between cylinders. By eliminating the continuous water jackets between the three pairs of cylinders (there was only a slot in the upper area, which was sufficient for cooling), with the same length of the engine block, the bore could be increased from 82 to 86.5 mm. The stroke remained at 78.8 mm, as with the M 108/129.

The mixture preparation was carried out either by mechanical Bosch intake manifold injection or by two Zenith - downdraft - register carburetor and made 140 or 160 hp in the normal case. On the models Mercedes-Benz 280 SL ("Pagode") and 300 SEL 2.8 , the performance was increased to 170 hp by using a camshaft with longer valve opening times and adjusting the injection pump.

Due to stricter emissions regulations in the US, there was also a lower-compression version, in which the ignition was withdrawn. Both measures led to better emissions, but also to higher consumption.

The successor M 110 with DOHC valve control appeared in 1972; in the Unimog 404 , the M 130 was still used until 1980.

Six-cylinder in-line engine; Engine block from cast iron ; Cylinder head made of aluminum alloy
Crankshaft with seven main bearings
OHC valve control : a camshaft in the cylinder head; two valves per cylinder;
Mechanical Bosch 6-piston injection pump with map control or two downdraft - Register carburettor
Zenith 35/40 INAT with automatic start
Compression ratio : 9.5: 1 (280SE) and 9.0: 1 (280S)

Technical data

Bore and stroke: 86.5 mm × 78.8 mm; Displacement: 2778 cc:

model	construction time	model	engine number	compression	Power PS	Torque Nm / rev.
280 S sedan	1967-72	108016	M130.920 V	9.0	140	228/3600
280 SE sedan	1968-72	108018	M130.980 E	9.5	160	245/4250
280 SE Coupe / Cab.	1967-71	111 024/5	M130.980 E	9.5	160	245/4250
280 SL	1968-71	113044	M130.983 E	9.5	170	245/4500
250 2.8	1970-73	114011	M130.923 V	8.7	130	220/3200
300 SEL 2.8	1968-70	109016	M130.981 E	9.5	170	245/4500
Unimog	1971-80	404,012 / 3	M130.925 V	7.8	110
280 SE (C) / SL	1968-72	div.	M130.984 E	7.8	140	218/4000