5.2.7. Power supply system

The power supply system is similar specified for ZMZ-4025, ZMZ-4026 engines.
Differences only in the following:
- the K-151T carburetor differs from the K-151 carburetor in the changed dosages of some jets. The basic dosing elements of the K-151T carburetor are given in tab. 4.7;

Table 4.7. The basic dosing carburetor elements
Name of elements
First camera
Second camera
The jet is fuel main, cm3/min.
235±3,0
235±4,5
The jet is air main, cm3/min.
280±3,5
280±3,0
Block of jets of idling, cm3/min.:


idling tube
95±1,5
-
the tube is emulsion
95±1,5
-
Jet air idling, cm3/min.
190±2,5
-
Jet emulsion idling, cm3/min.
210±3,0
-
Jet fuel, cm3/min.
-
200±2,0
Jet air transitional system, cm3/min.
-
270±3,5
Diameters of diffusers, mm:


small
10,5+0,011
10,5+0,011
big
23+0,045
23+0,045

- the fuel pump differs from the fuel pump of ZMZ-4025, ZMZ-4026 engines in a diaphragm drive lever configuration from a camshaft cam;
- the fuel filter of thin purification of fuel — with the mesh or replaceable paper filtering element.