Replacing oil pump chain - AR18.10-P-2140HA

ENGINES 111, 602.982 /983, 604, 605, 606 

Fig 1: Identifying Oil Pump Chain Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Shown on engine 604 

	Removing, installing
1.1	Drain coolant	Engine 111	AR20.00-P-1142HG
		Engines 601, 602 except 602.983, 603, 604, 605, 606	AR20.00-P-1142HW
		Engine 602.983 in model 461	AR20.00-P-1142GG
		Engine 606.964 in model 463	AR20.00-P-1142GG
2	Drain engine oil
3.1	Remove oil pan's oil-water heat exchanger (9)	Model 124 Model 202 with engines 604, 605 up to 06/94	AR18.30-P-3480HA
4	Remove oil pan (10)	Engines 111.940/960 in model 124 Engines 111.920/921/941/945 /961/974 in model 202 Engine 111.946 in model 170 Engine 111.945 in model 208	AR01.45-P-7500A
		Engine 111.977 in model 163	AR01.45-P-7500AG
		Engine 111 in model 210	AR01.45-P-7500B
		Engines 111.943/973 in models 170 and 111.944/975 in model 202 Engines 111.944/975 in model 208	AR01.45-P-7500E
		Engines 604, 605 in model 202, engines 605, 606 in model 124	AR01.45-P-7500HA
		Engine 602.982 in model 210	AR01.45-P-7500HW
		Engine 602.983 in model 461	AR01.45-P-7500GG
		Engine 606.964 in model 463	AR01.45-P-7500GG
		Engines 605, 606 in model 210 Engines 606.961 in model 140	AR01.45-P-7500C
		Engine 604 in model 210	AR01.45-P-7500D
5	Remove oil pump	Engine 111	AR18.10-P-6020HG
		Engines 604 - 606	AR18.10-P-6020HA
6	Separate oil-pump chain		AR18.10-P-2140-01HA
		Case	Figure
		Pressure screw	Figure
		Chain separating tool	Figure
		Pressure screw	Figure
7	Rivet oil-pump chain	When replacing the oil-pump chain replace oil-pump gear wheel (25) too or, for oil-pump 2nd version, replace oil pump.	AR18.10-P-2140-02HA
		Rivet press-on tool	Figure
		Assembly inserts	Figure
8	Remove oil-pump gear wheel (25)	Installation of oil pump 1st version:  Install oil-pump gear wheel (25) with mounted timing chain with camber (arrows) facing oil pump (24).
		Engines 111, 604, 605, 606	*BA18.10-P-1001-01A
		Engines 602.982/983	*BA18.10-N-1001-01A
9	Install in the reverse order

Oil pump

Oil pump

Fig 2: Case (602 589 00 98 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 3: Thrust Spindle (602 589 05 63 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 4: Chain Separating Tool (602 589 02 33 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 5: Thrust Pins (602 589 05 63 01)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 6: Riveting Tool (602 589 00 39 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 7: Assembly Inserts (103 589 01 63 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.