Inspect cylinders with a light probe

AR01.00-P-0200OLD

Inspect cylinders with a light probe

08.08.2019

Engine

651 in model 205, 253

Modification notes

05.08.2019

Information document AH05.30-P-1000-02SZ, added.

Operation step 6.

1

Light projector

2

Flexible endoscope

 

Remove/install

1

Remove engine cover.

2

Remove fuel injectors.

AR07.16-P-1000OLD

3

Remove engine air intake duct upstream of air filter.

4

Move piston of the cylinder to be tested to bottom dead center (BDC) using a counterholder.

 Crank engine at crankshaft. Do not turn engine against the direction of rotation.

 Counterholder

*651589074000

5

Inspect cylinder with light probe.



000 588 01 21 00 Endoscope

WS01.00-P-0097B

 Connect light projector (1) and pass flexible endoscope (2) for the light projector (1) through the bore for the fuel injectors into the cylinder.



Check

6

Check cylinder barrel.

General information on checking valves, valve seats and valve guides

AH05.30-P-1000-02SZ

General information on inspecting cylinder walls

AH01.00-P-0300-01A

 If there is wear on the cylinder, the cylinder barrel has become rough and the honing marks are no longer visible.

If the condition of the cylinder barrel is not clearly recognizable,



Remove cylinder head.

AR01.30-P-5800OLD

7

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

8

Check fuel system for leaks with engine running.