Clean main oil gallery · ar0140w8501a · Mercedes-Benz WIS

AR01.40-W-8501A

Clean main oil gallery

16.6.10

ENGINE 902.9 in MODEL 957 with CODE (MS8) Natural gas engine

ENGINE 904.904 in MODEL 670

ENGINE 904.908 /914 /923 /936 in MODEL 668, 670

ENGINE 904.9 in MODEL 374, 375, 673, 674, 676, 958, 970, 972, 975, 976

ENGINE 906.9 in MODEL 374, 958, 970, 972, 974, 975, 976

ENGINE 906.9 in MODEL 374, 375, 950, 952, 953, 954, 957, 958

W01.40-1018-06

Shown on engine 904.9 up to
engine end no. 301576

1 Screw plug (M161.5)
(only for engine 904.9 up to engine end no. 301576, engine 902.9, 906.9 up to engine end no. 301561)

2 Screw plug (M201.5)

3 Screw plug (M141.5)

4 Screw plug (M201.5)

5 Screw plug (M181.5)

Modification notes

10.1.06

Screw plug on crankcase

All engines

*BA01.40-N-1006-01C

 	Remove/install
1	Remove crankshaft		AR03.20-W-4351A
2	Remove camshaft		AR05.20-W-6292A
3	Remove oil spray nozzles	Engine 904.9 up to engine end no. 066192, Engine 906.9 up to engine end no. 067198	AR18.00-W-4000A
		Engine 902.9, Engine 904.9 starting from engine end no. 066193, Engine 906.9 as of engine end no. 067199	AR18.00-W-4000C
4	Remove oil-water heat exchanger	Engine 902.9, 906.9	AR18.30-W-6840D
		Engine 904.9 in model 374, 375, 673, 674, 676, 958, 970, 972, 975, 976	AR18.30-W-6840A
		Engine 904.9 in model 668, 670	AR18.30-D-6840D
		 Installation: If there are chips in oil circuit, the oil/water heat exchanger must be replaced.
5	Remove oil filter housing and clean	Model 374, 375, 673, 674, 676, 950, 952, 953, 954, 957, 958, 970, 972, 975, 974, 976	AR18.20-W-3471A
		Model 668, 670	AR18.20-D-3471D
		 Installation: In the event of pollution, replace oil filter.
6	Remove compressor	Engine 902.9, 906.9 in model 957 with code (MG7) compressor, 2-cylinder, temperature optimized	AR13.30-W-5510E
		Engine 904.9 Engine 906.9 except in model 957 without code (MZ9) dual compressor	AR13.30-W-5510A
		Engine 906.9 except in model 957 with code (MZ9) dual compressor	AR13.30-W-5510B
7	Dismantle rocker arm assembly and clean oil ducts in the cylinder head and rocker arm assembly	 Only if oil duct in the cylinder head is contaminated or where chips are found in the oil circuit.	AR05.00-W-5541A
8	Remove remaining detachable parts which are supplied with engine oil or which are installed in the engine oil circuit	 Clean detachable parts.
9	Unscrew screw plug (4) and clean main oil duct with compressed air	 The main oil duct to cylinder head must be cleaned first.
		 Installation: Replace sealing ring.
			*BA01.40-N-1006-01C
10	Remove screw plug (2)	 Installation: Coat screw plug (2) with quick adhesive.	*BR00.45-Z-1008-02A
			*BA01.40-N-1006-01C
11	Remove screw plugs (3, 5)	 Installation: Replace sealing rings.
			*BA01.40-N-1006-01C
12	Remove screw plug (1) or oil pressure sensor and clean remaining main oil duct with compressed air	 Installation: Replace sealing rings.
		Screw plug	*BA01.40-N-1006-01C
		Oil pressure sensor	*BA18.40-N-1007-01C
13	Install in the reverse order

 Crankcase, timing case cover, end cover

Number	Designation			Engine 900.9, 902.9, 904.9, 906.9


BA01.40-N-1006-01C	Screw plug on crankcase	M141.5	Nm	35
		M161.5	Nm	35
		M181.5	Nm	40
		M201.5	Nm	65

 Oil level sensor, oil pressure sensor

Number	Designation		Engine 900.9, 902.9, 904.9, 906.9


BA18.40-N-1007-01C	Oil pressure sensor to crankcase	Nm	35

Repair materials

Number	Designation	Order number
BR00.45-Z-1008-02A	Quick-acting adhesive, Loctite 270	A 002 989 93 71

Henviste dokumenter

ar0320w4351a Af-, påmontering af krumtapaksel
ar0500w5541a Adskillelse og samling af vippearmssystem
ar0520w6292a
ar1330w5510a Af-, påmontering af kompressor
ar1330w5510b
ar1330w5510e
ar1800w4000a Af-, påmontering olieindsprøjtningsdyser (stempler)
ar1800w4000c
ar1820d3471d
ar1820w3471a Af-, påmontering af oliefilterhus
ar1830d6840d
ar1830w6840a Af-, påmontering af olie-vand-varmeveksler
ar1830w6840d