Replace rear crankshaft radial sealing ring - AR03.20-P-3063SX

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ENGINES 273 in MODEL 216

ENGINES 272, 273 (except 272.974) in MODEL 221

Shown on engine 273.961

Fig 1: Replacing Rear Crankshaft Radial Sealing Ring - Shown On Engine 273.961

Courtesy of MERCEDES-BENZ USA

MODIFICATION NOTES

10.3.10

Diameter of the crankshaft flange altered - added

BT03.20-P-0003-01A

	Removing
1	Remove driven plate		AR03.30-P-8001SX
	Clean
2	Clean crankcase (2) and oil pan (3) in area of the end cover (4)	Cleaner from package	*BR00.45-Z-1028-04A
3	Remove bolts (4a, 4b)
4	Pry off end cover (4) with crankshaft radial sealing ring (5) from crankcase (2)	Do not hit tool for prying off between end cover (4) and crankcase (2); the sealing surface will be damaged. Fit tool for prying off onto side recess clearances of end cover (4). If required heat up sealant with hot air gun.
5	Remove end cover (4)
	Clean
6	Clean sealing surfaces for end cover (4)	Do not use any sharp-edged tools or abrasive paper as this will damage the sealing surfaces.	AR01.00-P-0050-01A
		Loctite 7200	*BR00.45-Z-1038-04A
		Cleaning spray, Loctite 7063 (150ml)	*BR00.45-Z-1046-04A
	Install
7	Install end cover (4) with crankshaft radial sealing ring (5)	It is essential to observe notes concerning applying sealant and the correct installation position of lips of the crankshaft radial sealing ring (5).
	Diameter of the crankshaft flange altered	Engine 273.92# ## as of 300194, 273.96#/97# ## as of 300346	BT03.20-P-0003-01A
		Engine 272	AR03.20-P-3063-01VA
		Engine 273	AR03.20-P-3063-01SX
		Engine 272	*BA01.40-P-1004-01G
		Engine 273	*BA01.40-P-1003-01T
		Insertion tool (engine 272, 273.92 up to engine end no. 300193, 273.96/97 up to engine end no. 300345 with crankshaft flange Ø = 93 mm)	Fig 2
		Insertion tool (engine 273.92 as of engine end no. 300194, 273.96/97 as of engine end no. 300346 with crankshaft flange Ø = 96 mm)	Figure
		Squeeze gun	Figure
		Loctite 5970 sealant	*BR00.45-Z-1013-01A
8	Install drive plate		AR03.30-P-8001SX
	Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running	Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
9	Carry out an engine test run and check engine for leaks

CRANKCASE, TIMING CASE COVER, END COVER

Number	Designation		Engine 272
BA01.40-P-1004-01G	Bolt, end cover to crankcase or oil pan	Nm	8

CRANKCASE, TIMING CASE COVER, END COVER

Number	Designation		Engine 273
BA01.40-P-1003-01T	Bolt, end cover to crankcase or oil pan	Nm	9

Fig 2: Identifying Insertion Tool (271 589 00 43 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Insertion Tool (273 589 00 43 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Squeeze Gun (112 589 00 25 00)

Courtesy of MERCEDES-BENZ USA

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1013-01A	Loctite 5970 sealant	A 003 989 98 20
BR00.45-Z-1028-04A	Cleaner from package	Adolf Wurth GmbH & Co. KG
BR00.45-Z-1038-04A	Loctite 7200	Henkel Loctite Deutschland GmbH
BR00.45-Z-1046-04A	Cleaning spray, Loctite 7063 (150ml)	A 001 986 71 71 10