AR05.10-S-4650SD | Remove/install intermediate gear of high pressure pump | 22.4.09 |
ENGINE 646 in MODEL 636, 639
S05.20-4504-09
1 Belt pulley
2 Intake camshaft
5 Markings
3 Retaining pin
4 Camshaft bearing
S05.10-4503-11
6 Timing chain
7 Exhaust camshaft sprocket
8 Bolts connecting camshaft sprocket to exhaust camshaft
9 Bolt of intermediate gear of high pressure pump to cylinder head
10 Sleeve
11 High pressure pump intermediate gear
| Remove/install | ||
Danger! | Risk of injury caused by scraping or cutting body parts on sharp vehicle parts | Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels. | |
1 | Remove cylinder head cover | ||
2 | Position piston of cylinder 1 to ignition TDC | Crank engine at crankshaft and position belt pulley (1) at marking. | |
Socket | |||
3 | Lock inlet camshaft (2) | Push the retaining pin (3) at the crankshaft bearing (4) into the bore in the intake camshaft sprocket. | |
Locking pins | |||
4 | Check basic position of camshafts | Both markings (5) in the camshaft sprockets must face opposite one another and the markings on the camshaft and camshaft bearing cap must be aligned (arrows). Piston of cylinder 1 is at ignition TDC | |
5 | Remove high pressure pump | ||
6 | Remove front cover at cylinder head | ||
7 | Mark the timing chain (6) to the exhaust camshaft (7) | ||
8 | Dismount exhaust camshaft sprocket (7) from exhaust camshaft | Remove the camshaft sprocket bolts at the exhaust camshaft (8) and remove the exhaust camshaft sprocket (7). | |
Installation: Replace camshaft sprocket bolts at the exhaust camshaft (8). | |||
| |||
9 | Remove retaining pin (3) | ||
10 | Remove bolt for high pressure pump intermediate gear at cylinder head (9) | Remove bolt for high pressure pump intermediate gear at cylinder head (9) with sleeve (10). | |
| |||
11 | Remove intermediate gear of high pressure pump (11) | Remove upward. | |
12 | Install in the reverse order | ||
| Checking | ||
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. | |
13 | Check for leaks with engine running |
Timing chain, chain tensioner
Number | Designation | Engine 646 in models 636, 639 | ||
BA05.10-N-1001-01F | Bolt of camshaft sprocket to exhaust camshaft | Nm | 18 | |
BA05.10-N-1003-01F | Bolt of intermediate gear of high pressure pump to cylinder head | Nm | 40 | |
111 589 03 15 00
Retaining pins
Wrench socket
001 589 65 09 00
Referenced documents
- ar0120s5014sd Remove, install cylinder head cover
- ar0130s5700sd Remove/install front cap on cylinder head
- ar0702s1020sd Remove/install high-pressure pump
- as0000z000501a 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.
- as0000z001701a Risk of injury caused by scraping or cutting body parts on sharp vehicle parts