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Carbureted engines

Fuel pump

Mechanical fuel pump is driven by an eccentric intermediate shaft.

Characteristic	Value
The pressure of the vacuum when the starter, kg / cm 2	0,332-0,465
maximum pressure drop within 1 minute of the engine, kg / cm 2	0,095
Discharge pressure when the starter, kg / cm 2	0,25-0,38
maximum pressure drop within 1 minute of the engine, kg / cm 2	0.05

Stromberg Carburetor

On engines and 102,920 M 939 M 115,954 installed horizontal, single chamber with a constant vacuum carburettor Stromberg 175 CDT.

Calibration data

Characteristic	Value
Marking the metering pin	UC
Marking the main fuel jet	100
Marking the fuel jet of idling	50
Marking an air jet idling	115
The hole diameter of the needle valve, mm	2.25
Marking caps the starting device	200
The fuel level in the float chamber, mm	18-19
The weight of the float, g	11,8-13
Make oil in the damper piston	ATF
The capacity of the shock absorber piston, see 3	thirty
The thickness of the gasket the needle valve, mm	15
Starting backlash air valve, mm	5,3 ?� 0,3
Fuel supply accelerating pump for one cycle, sm 3	1,9 ?� 0,15
The engine speed of the engine at the disconnected hose of a vacuum regulator, rev / min	1250 ?� 50
The gap between the lever and the adjusting screw vacuum regulator, mm	0.5
Engine speed at idle, rev / min	800 ?� 50
The carbon monoxide content in the exhaust gas,%	1,0 ?� 0,5
The engine speed at accelerated idle speed when the engine oil temperature 75-85 ?� C and position the sector trigger on the 2nd groove profile, rev / min	1700 ?� 100
The content of carbon monoxide (CO) in the exhaust gases at rapid idle when the engine oil temperature 75-85 ?� C and position the sector trigger on the 2nd profile slot%	6 ?� 1
The time delay of the electromagnetic shut-off valve, with	6-16

Carburetor Solex DVG type 4A1

On engines M 123,920, 123,921 M, M and M 110,923 115,938 installed carburetor Solex DVG type 4A1. Emulsion-type carburettor, two-chamber, with serial opening of the throttle, with the automatic starting device and thermostatic auxiliary starting device (for starting the engine is warm). On the forced idling included economizer overrun.

Characteristic	Value
Index carburetors
M 115	E 17481 (E 17703) *
M 123	E 17482 (E 17704)
M 110	E 17603

* In brackets the index carburetors installed on models with automatic transmission without a vacuum regulator ignition.

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Characteristic	Value
Fuel supply accelerating pump for one cycle, sm 3	0,7 ?� 0,15
Marking an air jet idling	125
Marking spray of the accelerating pump	50
Starting backlash air damper, mm
Level I	eleven
Level II	4,2 ?� 0,2
Ajar air damper, mm	0.3-0.8

Calibration data Solex carburettor 4A1

Index	Car Model "200"
	1st Camera	2nd camera
The diameter of the diffuser, mm	20	54
The hole diameter of the needle valve, mm	20
Home metering system
Marking a fuel jet	x 97.5	B5 *
marking an air jet	2,147	3,747
The idling
Marking a fuel jet	42.5	-
marking an air jet	120	-
Accelerator Pump
fuel supply for one cycle, sm 3	0,6 ?� 0,15
The weight of the float, g	6,8 ?� 0,35
Starting clearance, mm
air damper stage I	3.2	-
air damper stage II	4,2 ?� 0,2
Throttle	2,9 ?� 0,2
The content of carbon monoxide (CO) in the exhaust gas	0.5-1.5
Engine speed at idle, rev / min	850-950
Index	Car Model "250"
	1st Camera	2nd camera
The diameter of the diffuser, mm	20	54
The hole diameter of the needle valve, mm	20
Home metering system
Marking a fuel jet	x 97.5	B7 *
marking an air jet	2,147	3,747
The idling
Marking a fuel jet	42.5	-
marking an air jet	115	-
Accelerator Pump
fuel supply for one cycle, sm 3	0,7 ?� 0,15
The weight of the float, g	6,8 ?� 0,35
Starting clearance, mm
air damper stage I	3.2	-
air damper stage II	4,2 ?� 0,2
Throttle	2,9 ?� 0,2
The content of carbon monoxide (CO) in the exhaust gas	0.5-1.5
Engine speed at idle, rev / min	850-950
Index	Car Model "280"
	1st Camera	2nd camera
The diameter of the diffuser, mm	20	54
The hole diameter of the needle valve, mm	20
Home metering system
Marking a fuel jet	x 97.5	B5 *
marking an air jet	90	-
The idling
Marking a fuel jet	42.5	-
marking an air jet	110	-
Accelerator Pump
fuel supply for one cycle, sm 3	0,65 ?� 0,15
The weight of the float, g	6,8 ?� 0,35
Starting clearance, mm
air damper stage I	3.2	-
air damper stage II	4,2 ?� 0,2
Throttle	2,9 ?� 0,2
The content of carbon monoxide (CO) in the exhaust gas	0.5-1.5
Engine speed at idle, rev / min	800-900

* Marking the needle jet.

The solenoid shut-off valve

Characteristic	Value
Brand and type	Pierburg PE 20273
The course of the needle valve, mm	2,5 ?� 0,05
Rated voltage,	12
The maximum allowable voltage,	16
Consumption current when the voltage at terminal 12, A	0,25 ?� 0,02

Vacuum regulator

Characteristic	Value
Brand and type	Pierburg PE 20464

A thermostatic valve reduce emissions

Characteristic	Value
Brand and type	Texas Instruments CARP or Pierburg PE 20213
Valve opening temperature, ?� C	30 ?� 3
Valve closing temperature, ?� C	20 ?� 3