Shown on ENGINE 276.9 |
3 | Center bolt |
4 | Key |
5 | Radial shaft sealing ring |
8 | Belt pulley/vibration damper |
P03.30-2158-06
| Notes on avoiding damage through contamination and foreign objects | ||
| Remove/install | ||
1 | Remove front engine cover | Engine 276.9 in model 172.4 | |
2 | Remove engine air intake ducts upstream of air filter | Engine 276.9 in model 172.4 | |
3 | Remove fan unit | Engine 152.9 in model 172.4 | |
4 | Detach left charge air pipe from left ATL | Engine 276.8 in model 172 | |
5 | Detach right charge air pipe from right ATL | Engine 276.8 in model 172 | |
6 | Detach charge air cooler and place to one side with attached coolant hoses | Engine 276.8 in model 172 | |
7 | Remove poly-V belt |
| |
Engine 152.9 in model 172 | |||
8 | Rotate engine at center bolt (3) to TDC (top dead center) | ||
9 | Install retaining lock for crankshaft/starter ring gear |
| |
Engine 276 in model 172 | |||
10 | Remove center bolt (3) | Installation: Install new center bolt (3). | |
Center bolt, belt pulley to crankshaft | |||
11 | Detach belt pulley/vibration damper (8) from crankshaft | Installation: Through turning motions ensure that the key (4) of the crankshaft engages in the groove on the belt pulley/vibration damper (8). | |
| Check | ||
12 | Check contact surface of the radial shaft sealing ring (5) on hub of the belt pulley/vibration damper (8) for scoring and galling | For scoring and galling | |
| |||
Replace belt pulley/vibration damper (8). | |||
13 | Check front radial shaft sealing ring (5) for damage | If damage is present | |
| |||
Replace front radial shaft sealing ring (5). | |||
14 | Install in the reverse order | ||
| Check | ||
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. | |
15 | Perform an engine test run and check engine for leaktightness |
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