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M127 is simply a FI version of the M180. M130 is an M180 with larger
bore and stroke. The Datsun 6 cyl of the 70s is a M180 knockoff. The
Datsun 4 cyl is a knockoff of the MB M120.
M180
The original M180 engine was rated at 80 hp (60 kW). It powered theW187
<https://en.wikipedia.org/wiki/Mercedes-Benz_W187>220sedan
<https://en.wikipedia.org/wiki/Sedan_%28car%29>,coupé
<https://en.wikipedia.org/wiki/Coup%C3%A9>, andcabriolet
<https://en.wikipedia.org/wiki/Convertible_%28car%29>(Type A and B) from
1951 to 1955, theW180
<https://en.wikipedia.org/wiki/Mercedes-Benz_W180>220a sedan, coupé, and
cabriolet from 1954 to 1956 and theW105
<https://en.wikipedia.org/wiki/Mercedes-Benz_W105>219 4-door sedan from
1956 to 1959.
It also powered the MB Unimog 404s, the military all-round vehicle: It
was built from 1955 until 1980.
It was used as a "Pritsche", for towing light guns and carrying their
crew, as ambulance, Radio vehicle, Fire vehicle, especially at airports
and airbases.
Other Unimogs, agricultural used, used already OM-type engines (Öl
Motor, orDiesel engine <https://en.wikipedia.org/wiki/Diesel_engine>)
but in the given period it should be more save, logistic reliable to use
petrol engines for the military.
M127
TheW180 <https://en.wikipedia.org/wiki/Mercedes-Benz_W180>Ponton
<https://en.wikipedia.org/wiki/Ponton_%28automobile%29>220S Sedan, Coupe
and Cabriolet of 1956-1959 benefited from the up-rated M180.924 which
delivered 124 hp (92 kW; 126 PS). In 1958Bosch
<https://en.wikipedia.org/wiki/Robert_Bosch_GmbH>mechanical fuel
injection <https://en.wikipedia.org/wiki/Mechanical_fuel_injection>was
added to the 2.2-litre six and the engine, now giving 113–134 bhp
(84–100 kW; 115–136 PS), was redesignated*M127*. The M127 was fitted to
the last of the Pontons: the rare 1958 W128 220SE, of which fewer than
4000 were produced.
In 1959 the first series ofW111
<https://en.wikipedia.org/wiki/Mercedes-Benz_W111>"Fintail" 220SE and
220SEb models was introduced, with thecarburetted
<https://en.wikipedia.org/wiki/Carburetor>M180 in the 220b and 220Sb and
the M127 used in the 220SEb. The addition of the lower case ‘b’ was
added to differentiate the Fintails from the earlier Pontons.
In 1965 the W111/W112 sedans were superseded by the newW108/109
<https://en.wikipedia.org/wiki/Mercedes-Benz_W108>series 250 and 250S
(apart from theW111 <https://en.wikipedia.org/wiki/W111>230/230S,
produced from 1965 to 1968). The M180 was bored by 2 mm (0.079 in),
creating an bore × stroke of 82 mm × 72.8 mm (3.23 in × 2.87 in) and
displacement of 2.3 L; 140.8 cu in (2,307 cc). All models received the
new 2.3 L engine.
M129
The M180's stroke was increased to produce the 2.5 L engine for the
newMercedes-Benz W108
<https://en.wikipedia.org/wiki/Mercedes-Benz_W108>250S and 250SE. A 6 mm
(0.24 in) increase resulted in a bore × stroke of 82 mm × 78.8 mm
(3.23 in × 3.10 in) and displacement of 2.5 L; 152.3 cu in (2,496 cc),
carburetted on the 250S and fuel-injected on the 250SE, designated
the*M129*. The M129 was fitted with a mechanically controlled six-piston
fuel injection pump. A change from four to seven main bearings was
necessary in order smoothly to handle the resulting increase in power. A
larger capacity oil pump was also specified.Connecting rods
<https://en.wikipedia.org/wiki/Connecting_rod>were slightly shortened,
reflecting the 6 mm (0.24 in) longer stroke in a block of unchanged
overall height. The redesignedcylinder heads
<https://en.wikipedia.org/wiki/Cylinder_head>incorporated larger ports,
and the valve diameters were increased by 2 mm (0.079 in). On the fuel
injected cars a six-plunger pump replaced the previous car's two plunger
pump and the injectors were repositioned to give a more direct angle
towards the inlet valve heads. The engine cooling fan now had six blades
instead of four and incorporated a viscous coupling which activated the
fan only when engine speed exceeded 3,000 rpm or the radiator water
temperature reached a preset limit. The engine of the 250 S was called
M108 (for W108 chassis) and only the 250 SE engine was designated M129.
M130
In 1968 the ‘New Generation’ or /8 models were introduced, along with a
change to the venerable mid-size six. The M180 engine of the 230/230S
was continued in the W114 230 and 230.6, while the M180 of the 250S
underwent a few changes and was renamed the M114. This was also
available with BoschD-Jetronic
<https://en.wikipedia.org/wiki/Jetronic#D-Jetronic_%281967-1979%29>fuel
injection, as fitted to the 250CE. The M129 of the 250SE were superseded
by the*M130*, the ultimate variant of the mid-sized six, obtained by
increasing the 2.5-litre versions' bore by 4.5 mm (0.18 in) using the
same stroke (bore × stroke 86.5 mm × 78.8 mm (3.41 in × 3.10 in);
2,778 cc (2.8 L; 169.5 cu in)). This was the maximum practical
enlargement of the engine given the limitations of the block as
evidenced by the deletion of water passages between the cylinders. It
was used in the 280S and 280SE.
M123
Main article:Mercedes-Benz M123 engine
<https://en.wikipedia.org/wiki/Mercedes-Benz_M123_engine>
The final incarnation of the M180 line of engines was the 2.5L*M123
<https://en.wikipedia.org/wiki/Mercedes-Benz_M123_engine>*, fitted with
the notoriousSolex <https://en.wikipedia.org/wiki/Solex>four-barrel
carburator in the W123 chassis 250 produced between 1975 to 1985.
Dan--- via Mercedes wrote on 5/11/19 10:32 AM:
That sure looks like an M127 to me, but I’ll defer to your knowledge. I didn’t
realize the M127 was FI only.
They did look very similar to each other....
I wish the darned love bugs would go away. I’ve done all this work to the
Finnie and I can’t drive it unless I want a layer of the little buggers all
over the front of the car.
-D
On May 11, 2019, at 11:27 AM, Curley McLain via Mercedes
<mercedes@okiebenz.com> wrote:
Bzzzzt. M127 in fuel injected. 220b got a M180. I had one of the first
220b cars to hit US shores. The chassis number was 000499 and the M180 engine
was 000999
Model Years Chassis code Engine Displ. Power Built
220 Sedan 8/59–8/65 111.010 M180.940 / R 6 2195 cc 95 PS (70 kW;
94 hp) 69,691
Dan Penoff via Mercedes wrote on 5/11/19 9:42 AM:
M127 in that car. Later models would have had the M180.
-D
On May 11, 2019, at 10:36 AM, Curley McLain via Mercedes
<mercedes@okiebenz.com> wrote:
"Removed air cleaner; got 40 HP more"
(can't read the engine tag; or do minimal research, either. M180)
BUT it is the only one I have seen with the red bench front seat like my 190Dc.
Kaleb Striplin via Mercedes wrote on 5/11/19 8:36 AM:
1962 Mercedes 220b **Price Reduced**
https://houston.craigslist.org/for/d/houston-1962-mercedes-220b-price-reduced/6872836438.html
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