1 | Pressure loss tester |
P01.00-A051-06
Caution | Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil | Wear protective gloves, protective clothing and safety glasses. | |
Warning | Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust. | Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area. | |
Warning | Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. 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. | |
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. | |
Warning | Risk of injury. Skin or eye injuries may result when handling hot or glowing objects. | Wear protective gloves, protective clothing and safety glasses, if necessary. | |
Topical note | Notes on avoiding damage through contamination and foreign objects | ||
| Remove | ||
1 | Warm up engine to normal operating temperature. | Only check cylinder leakage when the engine is at normal operating temperature. | |
2 | Remove spark plugs (R4). | ||
| |||
3 | Remove engine cover upstream of poly-V-belt. | ||
4 | Remove cap of coolant expansion reservoir. | ||
5 | Take off oil filler cap. | ||
6 | Attach TDC detection device to the cylinder to be checked. | Commercially available devices/tools | |
7 | Rotate the engine at the crankshaft vibration damper in the direction of engine rotation until the piston of the cylinder to be checked is at bottom dead centre. | Counterholder | |
8 | Remove TDC detection device. | Commercially available devices/tools | |
9 | Connect pressure loss tester (1) with suitable adapter to cylinder to be checked. | | |
Adapter | |||
Pressure loss tester | |||
| Check | ||
10 | Apply compressed air to cylinder to be checked and read pressure loss from pressure loss tester(1). | Cylinder leakage: permissible loss total indication | |
Cylinder leaktightness: Permissible losses at valves and cylinder head gasket | |||
Cylinder leaktightness: Permissible losses at pistons and piston rings | |||
If the crankshaft rotates: | |||
| |||
Install retaining lock for crankshaft. | |||
11 | Check other cylinders in firing order of engine. | Firing order | |
| Install | ||
12 | Remove retaining lock. | For an installed retaining lock. | |
13 | Remove pressure loss tester (1) with adapter. | Pressure loss tester | |
Adapter | |||
14 | Remove adapter from pressure loss tester (1). | Adapter | |
15 | Attach oil filler cap. | ||
16 | Attach cap of coolant expansion reservoir. | ||
17 | Install engine cover upstream of poly-V-belt. | ||
18 | Install spark plugs (R4). | ||
|
256 589 01 91 00
Adapter
450 589 17 21 00
Pressure loss tester
654 589 00 40 00
Counterholder
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