CAT 320C INJECTOR PUMP

got a 320c serial HKT01189 engine MAE06667,
its bit down on power and some black smoke, put in new injector nozzles and now want to have the injector pump serviced.
anyone who can help me with injection pump adjustment specs for bench calibration?
cheers

Specifications
3064 and 3066 Engines for Caterpillar Built Machines Media Number -SENR5545-18 Publication Date -01/09/2012 Date Updated -14/09/2012


i02910133


Fuel Injection Nozzles
SMCS - 1254


--------------------------------------------------------------------------------

View Image


--------------------------------------------------------------------------------

Illustration 1 g01381489


(1) Seat washer

(2) Fuel injection nozzle

(3) Retainer for fuel injection nozzle

Tighten the retaining bolt to the following torque. ... 20 to 23 N·m (14 to 17 lb ft)

--------------------------------------------------------------------------------

View Image


--------------------------------------------------------------------------------

Illustration 2 g01381491


(4) Body for fuel injection nozzle

(5) Shims

Refer to Table 2 for the correct injector valve opening pressures.

Table 1 Engine Part Number of the Nozzle Injector Valve Opening Pressure
3064 193-2749 (22.1 to 23.1 MPa)
(3205 to 3350 psi)
212-8470 (22.1 to 23.1 MPa)
(3205 to 3350 psi)
5I-7706 (22.1 to 23.1 MPa)
(3200 to 3343 psi)
3066 193-2749 (22.1 to 23.1 MPa)
(3205 to 3350 psi)
212-8470 (22.1 to 23.1 MPa)
(3205 to 3350 psi)
233-1161 (18.1 to 19.1 MPa)
(2625 to 2770 psi)
5I-7706 (22.1 to 23.1 MPa)
(3200 to 3343 psi)


Increasing shims by 0.10 mm (0.004 inch) changes injection pressure by approximately 1375 kPa (200 psi). Shims are available in nine sizes from 0.10 mm (0.004 inch) to 0.58 mm (0.023 inch).

(6) Pressure spring

(7) Pressure pin

(8) Gasket

(9) Pin

(10) Tip for fuel injection nozzle

(11) Retaining nut for fuel injection nozzle

Tighten the nut to the following torque. ... 30 to 39 N·m (22 to 29 lb ft)

Have you checked the screen on the bottom of the supply pump it is in the banjo fitting