Check timing chain

AR05.10-P-7600A

Check timing chain

8.9.15

Engine

651 in model 117, 156, 166, 172, 176, 204, 205, 207, 212, 218, 221, 222, 246, 253

 

Remove/install

1

Remove chain tensioner

Model 222 with engine 651

AR05.10-P-7800OLF

Model 205, 253 with engine 651

AR05.10-P-7800OLD

Model 166, 172, 204, 207, 212, 218, 221 with engine 651

AR05.10-P-7800CD

Model 117, 156, 176, 246 with engine 651

AR05.10-P-7800OLB

 Installation: Replace sealing ring.

2

Install measuring chain tensioner

 The  measuring chain tensioner is installed without a sealing ring.

 Measuring chain tensioner to cylinder head

*BA05.10-P-1005-01Q

 Measuring chain tensioner

*651589116300



Check

3

Rotate engine twice at crankshaft twice in direction of engine rotation and determine the greatest indicator value on the measuring chain tensioner.

 This is generally found at ignition TDC for cylinder 1.

Change timing chain after timing chain stretch

*BE05.10-P-1001-03B

 Counterholder

*651589074000

4

Install in the reverse order

 Danger !

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

5

Check for oil leaks with engine running

Timing chain check values

Number

Designation

Engine 651 in model 117, 156, 166, 172, 176, 204, 205, 207, 212, 218, 221, 222, 246, 253

BE05.10-P-1001-03B

Change timing chain after timing chain stretch

Up to 250,000 km

mm

> 82

Over 250,000 km

mm

> 84

 Timing chain, chain tensioner

Number

Designation

Engine 651

BA05.10-P-1005-01Q

Measuring chain tensioner to cylinder head

Nm

20