Inspecting cylinders with light probe · ar0100s0200c · Mercedes-Benz WIS

AR01.00-S-0200C

Inspecting cylinders with light probe

17.8.98

ENGINE 611.980 in MODEL 638.094 /194 /294
with CODE (MQ4) Engine OM611 DE22 LA (75 kW)
with CODE (MQ5) Engine OM611 DE22 LA (90 kW)

ENGINE 611.980 in MODEL 638.094 /194 with CODE (MQ3) Engine OM611 DE22 A (60 kW)

S01.00-2502-06

1 Cylinder inspection tool

2 Flexible endoscope

3 Tensioning claw

4 Bolt

5 Fuel line

R13 Glow plug 1

R14 Glow plug 2

R15 Glow plug 3

R16 Glow plug 4

Y20 Injector 1

Y21 Injector 2

Y22 Injector 3

Y23 Injector 4

 	Removing, installing
1	Remove glow plugs (R13, R14, R15, R16)		AR15.20-S-4111B
 Danger!	Risk of explosion from ignition. Risk of poisoning from inhaling and swallowing fuel. Risk of injury as a result of fuel coming into contact with skin and eyes.	No fire, naked flame or smoking. Pour fuels only into suitable and appropriately marked containers. Wear protective clothing when handling fuel.	AS47.00-Z-0001-01A
2	Remove injectors (Y20, Y21, Y22, Y23)		AR07.16-S-1000A
			*602589003300
			*611589013300
			*611589006800
			*000589266800
			*001589760900
	Notes on injectors	 Clean injector recesses and nozzles with a wire brush, grease injector recesses with special grease.	AH07.16-P-1000-01A
		Clean injector recesses with a round brush, blow out and cover over. Seal injector recesses with a pin before cleaning. Set length of brush to about 3 mm for cleaning the sealing seat.
		Replace injector seal and bolts of tensioning claws (3).
		Special grease	*BR00.45-Z-1036-06A
3	Position piston of the cylinder to be inspected to BDC	 Do not rotate engine at crankshaft	AR01.00-S-0120D
4	Withdraw ignition key	 To avoid unintentionally operating the starter
5	Connect cylinder inspection tool (1) and fit flexible endoscope (2) onto the inspection tool		*WH58.30-Z-1014-05A
			*WH58.30-Z-1006-05A
			*WH58.30-Z-1007-05A
	Inspecting
6	General notes on inspecting cylinder surfaces	 Distinguish between "visual streaks" and "rubbing streaks". The "visual streaks" are usually streaks which are about 3 mm wide and are not roughened (e.g. from the ring opening), which are of no further significance. The traces of honing are still visible. In the case of "rubbing streaks" (cylinder wear) the wall of the cylinder is roughened, the traces of honing are no longer visible. In cases of doubt 	AH01.00-N-0300-01A
		remove cylinder head.	AR01.30-S-5800D
7	Carry out the inspection of the other cylinders in the same manner
8	Install in the reverse order

611 589 01 33 00

Round brush

Extraction claw

Impact extractor

Brake caliper brush

602 589 00 33 00

611 589 00 68 00

000 589 26 68 00

External torx set

001 589 76 09 00

Commercially available tools

Number	Designation
WH58.30-Z-1006-05A	Flexible endoscope, package contents 1 (complete unit), Firma Richard Wolf GmbH D-75438 Knittlingen Firma Karl Storz GmbH D-78532 Tuttlingen
WH58.30-Z-1007-05A	Flexible endoscope package contents 2 (for workshops which already have an approved endoscope from the Wolf or Storz company), Firma Richard Wolf GmbH D-75438 Knittlingen Firma Karl Storz GmbH D-78532 Tuttlingen
WH58.30-Z-1014-05A	Cylinder inspection equipment

Repair materials

Number	Designation	Order number
BR00.45-Z-1036-06A	Special grease	A 001 989 42 51 10

Referenced documents

ah0100n030001a General information on inspecting cylinder walls
ah0716p100001a Notes on injectors
ar0100s0120d Rotate the engine from the front part of the crankshaft
ar0130s5800d Remove/install cylinder head
ar0716s1000a Remove/install injectors
ar1520s4111b Remove/install glow plugs
as4700z000101a Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contactwith fuel.