Inspect cylinders for leaks

AR01.00-P-1300TY

Inspect cylinders for leaks

24.8.04

 

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 when working in engine during starting procedure

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

AS00.00-Z-0005-01A

1

Bring the engine up to operating temperature (approx. 80 °C)

 Check the cylinder for leaks only when the engine is at normal operating temperature.

 Danger!

Risk of injury to skin and eyes suffering scalding from contact with hot coolant spray. Risk of poisoning from swallowing coolant.

Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage bottles.

Wear protective gloves, protective clothing and eye protection.

AS20.00-Z-0001-01A

2

Open cap on expansion reservoir for coolant

 Rotate cap half a revolution counterclockwise, release pressure, then unscrew cap.

3

Remove spark plugs (R4)

 One spark plug for each cylinder.

Model 219.375 see: 



Replace spark plugs.

AP15.10-P-1580TY

Model 219.376 see: 



Replace spark plugs.

AP15.10-P-1580TZ

4

Position piston of cylinder to be tested to ignition TDC

 Crank the engine at the center bolt of the crankshaft in the direction of rotation of the engine.

5

Connect cylinder leakage tester (04)

 Calibrate cylinder leakage tester (04) and screw the connection hose into the spark plug bore

 Cylinder leakage tester

*WH58.30-Z-1015-05A

6

Remove oil filler cap



Check

7

Apply compressed air to the cylinder, read off pressure loss on the cylinder leakage tester (04) and determine the cause if there is an increased pressure loss

Cylinder leaktightness permissible loss total indication

*BE01.00-P-1001-02Z

Cylinder leaktightness permissible losses at valves and cylinder head gasket

*BE01.00-P-1002-02Z

Cylinder leaktightness permissible losses at pistons and piston rings

*BE01.00-P-1003-02Z

 If the crankshaft rotates:

Lock crankshaft with retaining lock.

AR03.30-P-5000TY

8

Conduct the inspection of the other cylinders in the same way

AR01.00-P-1300-03HA

9

Install in the reverse order

Number

Designation

All engines

BE01.00-P-1001-02Z

Cylinder leaktightness permissible loss total indication

%

25

BE01.00-P-1002-02Z

Cylinder leaktightness permissible losses at valves and cylinder head gasket

%

10

BE01.00-P-1003-02Z

Cylinder leaktightness permissible losses at pistons and piston rings

%

20

Number

Designation

WH58.30-Z-1015-05A

Cylinder leakage testing unit