ar0100s1200b

Test compression pressure

Type ar · topic 01.00 · version 0106 · 2008-02-27

Applies to: ENGINE 601 in MODEL 638

Where it sits

Function group 1 Engine › 01 Complete engine, crankcase ventilation, cylinder head, crankcase › 01.00 General — Series 601 · Series 638

EinPAS 15 Engine › 15.15 Combustion engine, complete/engine housing/crank assembly › 15.15.15 internal combustion engine, complete — Series 601 · Series 638

AR01.00-S-1200B

Test compression pressure

1.2.08

ENGINE 601 in MODEL 638

Test compression pressure

S01.00-2003-06

1 Ignition/starter switch

2 Injection nozzle

3 Engine stop lever

4 Engine stop vacuum unit

5 Vacuum line

6 Hand vacuum pump

7 Compression recorder

8 Connector

Remove/install

Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running

Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes.
Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

1

Warm up engine to normal operating temperature

Coolant temperature approx. 80° C

Check compression pressure with engine at operating temperature.

2

Remove injection nozzles (2)

AR07.03-S-6830A

3

Switch off fuel injection

Injection pump should not deliver fuel

AR07.11-S-5000A

4

Crank engine with ignition/starter switch (1)

Crank the engine several times with ignition/starter switch (1) to remove combustion residues

5

Connect compression recorder (7)

AR01.10-S-0010-01B

*001589762100

*602589006300

Checking

6

Crank engine with ignition/starter switch (1)

at least 8 revolutions

7

Inspect remaining cylinders in the same way

8

Compare measurements with the specified values

*BE01.00-N-1001-01A

*BE01.00-N-1002-01A

*BE01.00-N-1003-01A

If the specified values are not reached

Check for cylinder leakage and determine the cause

AR01.00-S-1300B

9

Remove compression recorder (7)

10

Install in the reverse order

Check values for compression pressure

Number

Designation

Engine
601.942 ε=22

Engine
601.970 ε=22

BE01.00-N-1001-01A

When new

bar

26-32

26-32

BE01.00-N-1002-01A

Wear limit (limit value)

bar

18

18

BE01.00-N-1003-01A

Permissible difference between individual cylinders

bar

3

3

Test compression pressure
Test compression pressure

001 589 76 21 00

602 589 00 63 00

Connector

Compression tester

Referenced documents