Testing compression pressure - AR01.00-P-1200HA

ENGINE 604, 605, 606 / 

Test compression pressure at the hole of the injection nozzle 

Fig 1: Test Compression Pressure At Hole Of Injection Nozzle

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Test compression pressure at the hole of the glow plug 

Fig 2: Test Compression Pressure At Hole Of Glow Plug

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	The compression pressure can be tested at the hole of the injection nozzle or at the hole of the glow plug
	Removal, installation
1	Warm up engine to operating temperature (approx. 80 °C)	Test compression pressure when engine is at normal operating temperature.
2.1	Remove injection nozzles	For testing at hole of injection nozzle	AR07.03-P-6830H
3.1	Remove glow plug	For testing at hole of glow plug	AR15.20-P-4111C
4	Crank engine with starter	Do not crank engine at ignition/starter switch but use contact switch of the compression recorder. Crank engine several times with the starter in order to eliminate combustion residues in the cylinder.
		Model 202, 210	AR01.10-P-0110B
		Model 140 with engine 606.961	AR01.10-P-0110D
		Model 463 with engine 606.964	AR01.10-P-0110GG
		Model 124	AR01.10-P-0110HA
		Pressurize vacuum line of injection pump with vacuum.
		Crank engine with ignition/starter switch.
	Inspecting
5	Connect compression tester (01)		Figure
		Use connector (02) for testing at hole of injection nozzle.
		Connector (02)	Fig 4
		Use angled connector (03) and connector (04) for testing at hole of glow plug
		Connector (04)	Fig 5
6	Crank engine with starter	Do not crank engine at ignition/starter switch but use contact switch of the compression recorder.
		Crank engine several times with the starter in order to eliminate combustion residues in the cylinder.
		Model 202, 210	AR01.10-P-0110B
		Model 140 with engine 606.961	AR01.10-P-0110D
		Model 463 with engine 606.964	AR01.10-P-0110GG
		Model 124	AR01.10-P-0110HA
		Pressurize vacuum line of injection pump with vacuum.
		Crank engine with ignition/starter switch
7	Carry out test procedure at the remaining cylinders in the same way
8	Compare measurements obtained with specified pressures		*BE01.00-P-1001-01A
			*BE01.00-P-1002-01A
		if necessary If necessary if the pressure is below the minimum compression pressure or if the permissible difference between the individual cylinders is exceeded ↓	*BE01.00-P-1003-01A
		test cylinders for leaks	AR01.00-P-1300HA
9	Install in the reverse order

Fig 3: Identifying (001 589 76 21 00) Compression Recorder

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 4: Identifying (604 589 00 63 00) Connector

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 5: Identifying (602 589 00 25 00) Adapter

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.