0232 - Reconditioning injection nozzle After check Engines 601, 602.91, 603.91 (note deviations for off-road vehicles) · ra07016010232x · Mercedes-Benz WIS

07.1-232 Reconditioning injection nozzles - after check

Preceding work:

Removing and installing injection nozzles (07.1-230)

Job no. of Job Texts and Work Units or Standard Texts

and Flat Rates:

07-6750 and 6752

0232 - Reconditioning injection nozzle
After check
Engines 601, 602.91, 603.91 (note deviations for off-road vehicles)

Nozzle needle (31)	Visual and sliding test; on hole-type pintle nozzles clean center and longitudinal bores; install in the same nozzle body.
Nozzle body (32)	remove combustion residue.
Intermediate plate (33)	polish on surface plate.
Thrust pin (34)	Tip must face to the upper part.
Nozzle clamping nut (35)	70-80 Nm.
Compression spring (36) Retaining body (37)	clamp in protective jaws.
Steel shim (40)	adjust to injection pressure. Set value 115-125 bar for new nozzle or nozzle to be newly adjusted, at least 100 bar for used nozzle. Depending on the shim thickness higher or lower injection pressure. 0.05 mm produce a pressure differential of approx. 3 bar.

Special tools

Commercially available tool

Cleaning needles 0,18 mm dia.

e. g. Bosch, D-7000 Stuttgart

Order no. KDEP 2900/4

Notes

On engines 602 and 603 the injection nozzles

are finely ground.

Production breakpoint: August 1989 - February 1990 (identification: 2 green color dots)


Model	Engine	Engine end no.


		manual transmission from to	automatic transmission from to
124.125/185	602.912	144201 - 157913	021518 - 023442
124.130/190	603.912	053162 - 058202	034696 - 038081
124.330	603.913	000639 - 000721	000615 - 000661
201.126	602.911	082780 - 089034	016395 - 017318

Nozzle holder combinations of engines 601.911/912 of an additional manufacturer (Lucas).

Except national version (   code 62/0 with exhaust gas recirculation)

Production breakpoint: October - December 1990


Model	Engine	Engine end no.


		manual transmission from to	automatic transmission from to
124.120/180	601.912	152352 - 155657	013558 - 014159
201.122	601.911	348205 - 355028	026872 - 027244

Except nationl version ( )

Standard production breakpoint: as of November 1991


Model	Engine	Engine end no.


		manual transmission	automatic transmission
124.120	601.912	174586	016615
201.122	601.911	384472	028995

Standard production breakpoint: October 1992


Model	Engine	Engine end no.


		manual transmission	automatic transmission
124.120 124.180	601.912	192158	019140
201.122	601.911	413154	030656

Standard production breakpoint: November 1992


Model	Engine	Engine end no.


		manual transmission	automatic transmission
124.125 124.127	602.912	234571	039579
124.130 124.190	603.912	087230	060909
201.126	602.911	121895	023754

Reconditioning

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

1 Dismantle by placing retaining body with protective jaws in the vise so that the leak-off fuel connections are not damaged.

2 Clean, remove combustion residue on nozzle needle seat with the cleaning miller.

Clean nozzle needle and nozzle body with brass brush.

On the hole-type pintle nozzle additionally clean longitudinal and transverse bores.

Clean longitudinal bore with cleaning

needle 0.18 mm dia.

Longitudinal bore

Clean transverse bore with cleaning

needle 0.35 mm dia.

Transverse bore

3 Visual and sliding test.

Immerse nozzle in filtered diesel fuel. With the nozzle body held vertically, the nozzle needle should slide towards the nozzle seat by its own weight.

4 Polish intermediate plate (33) on both sides on the surface plate.

5 Assemble nozzle holder with injection nozzle. Depending on the shim thickness (40) higher or lower injection pressure; 0.05 mm correspond to approx. 3 bar pressure differential.

6 Check function of injection nozzle
(07.1-231), adjust if required.

0232 - Reconditioning injection nozzle After check Engines 601, 602.91, 603.91 (note deviations for off-road vehicles)

Odkazované dokumenty