Replacing rear crankshaft radial seal

AR03.20-P-3063MR

06.03.2020

Engine

274 in model 172, 204, 207

Modification notes

20.05.2019

Rear end cover bolt at crankcase/oil pan (belt side)

BA01.40-P-1002-01K

1	Flywheel / drive plate
1a	Screw
2	Pulse ring
3	Crankcase
4	Oil pan
5	End cover
5a	Bolts
6	Radial shaft sealing ring

P03.20-2342-06

 	Remove/install
1	Remove flywheel/driven plate (1)		AR03.30-P-8001MR
2	Remove crankshaft Hall sensor		AR15.12-P-2136MR
3	Remove pulse ring (2)		AR15.12-P-0001MR
	Clean
4	Clean crankcase (3) and oil pan (4) in area of the end cover (5)	Assembly cleaner	*BR00.45-Z-1028-04A
5	Remove screw/bolts (5a)	 Screw, rear end cover to crankcase/oil pan (belt side)	*BA01.40-P-1002-01K
6	Release end cover (5) with radial shaft sealing ring (6) from crankcase (3)	 Do not pound in any tool between the end cover (5) and crankcase (3) to pry them apart. The sealing surfaces can get damaged otherwise.
		 Fit tool for prying off onto side notch clearances of the end cover (5). Heat up sealant with a heat gun if necessary.
7	Remove end cover (5) with radial shaft sealing ring (6)		AR03.20-P-3063-01MR
		 Installation: The end cover (5) must be replaced after every disassembly operation.
		 Screw, rear end cover to crankcase/oil pan (belt side)	*BA01.40-P-1002-01K
		Loctite 7200	*BR00.45-Z-1038-04A
		Assembly cleaner	*BR00.45-Z-1028-04A
		Sealant, Loctite 5970, 50 ml	*BR00.45-Z-1013-01A
		 Installation tool	*271589004300
8	Clean sealing surfaces for end cover (5)		AR01.00-P-0050-01A
		 Do not use any sharp-edged tools or abrasive paper. The sealing surfaces can be damaged otherwise.
		Loctite 7063 (400 ml) cleaning spray	*BR00.45-Z-1046-04A
		Loctite 7200	*BR00.45-Z-1038-04A
9	Install in the reverse order
 Warning	Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
10	Carry out an engine test run and check engine for leaktightness

 Crankcase, timing case cover, end cover

Number	Designation		Engine 274
BA01.40-P-1002-01K	Screw, rear end cover to crankcase/oil pan (belt side)	Nm	9

271 589 00 43 00

Installation tool

Repair materials

Number	Designation	Order number
BR00.45-Z-1013-01A	Sealant, Loctite 5970, 50 ml	A 003 989 98 20 10
BR00.45-Z-1028-04A	Assembly cleaner	A 000 986 56 01
BR00.45-Z-1038-04A	Loctite 7200	Henkel AG & Co. KGaA http://www.loctite.de
BR00.45-Z-1046-04A	Loctite 7063 (400 ml) cleaning spray	A 001 986 71 71 09

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