Check cylinders for leaks - AR01.00-P-1300MCU
ENGINE 132.910 in MODEL 451.3/4
| Remove/install | |||
| 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 | |
| 1 | Bring engine up to operating temperature of approx. 80°C | ||
| 2 | Detach right rear wheel | AR40.10-P-1100MCU | |
| 3 | Remove expansion rivet (1) and cover (2) | ||
| 4 | Lower vehicle with vehicle lift | ||
| 5 | Remove maintenance flap | ||
| 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 containers. Wear protective gloves, protective clothing and safety glasses. |
AS20.00-Z-0001-01A | |
| 6 | Turn cooling system cap on radiator counterclockwise through half a revolution, release overpressure, then unscrew cap on cooling system expansion reservoir | ||
| 7 | Remove spark plugs (R4) | ||
| AP15.10-P-1580MCC | |||
| 8 | Unscrew coolant filler neck cap | ||
| Check | |||
| 9 | Screw adapter into spark plug bore on cylinder 1 and connect up top dead center finder | For cylinder 3 insert |
Fig 3 |
| Fig 4 | |||
| 10 | Raise vehicle with vehicle lift | ||
| 11 | Turn engine in direction of engine rotation at the center bolt (3) of the crankshaft belt pulley (4) and set piston on cylinder 1 with the aid of the top dead center locator to ignition TDC | Fig 4 | |
| 12 | Lower vehicle with vehicle lift | ||
| 13 | Tighten parking brake and engage gear | ||
| 14 | Disconnect top dead center locator on adapter | Fig 3 | |
| Fig 4 | |||
| 15 | Connect compressed air hose to pressure loss tester | Pressure loss tester | Fig 4 |
| 16 | Attach pressure loss tester to adapter | Fig 3 | |
| Fig 4 | |||
| 17 | Pressurize cylinder 1 with compressed air and read off the pressure loss on pressure loss tester | Cylinder leakage: permissible loss total indication | *BE01.00-P-1001-02Z |
↓ Determine cause. |
Fig 4 | ||
| 18 | Shift transmission to neutral and release parking brake | ||
| 19 | Check other cylinders in the same way | ||
| 20 | Install in the reverse order |
CYLINDER LEAKAGE
| Number | Designation | ENGINE ALL | |
|---|---|---|---|
| BE01.00-P-1001-02Z | Cylinder leakage: permissible loss total indication | % | 25 |