Contents: Chain disconnection ↡ Assembling the chain ↡
Note: See also Section Timing Drive - General Information, Component Maintenance
Timing chain replacement
A - Timing chain disconnection; B - Riveting the timing chain using a connecting link; 6 - Thickness of intermediate plate 7a = 1.6 mm, thickness of outer plate 8b = 1.2 mm
1. Remove the top covers (30) and (30a).
2. Remove the timing chain tensioner.
3. Remove the spark plugs.
4. Disconnect the timing chain.
5. Cover the timing belt cover with a cloth.
Chain disconnection
1. Screw the stop spindle (02) together with the stop pin (02a) into the device (03).
2. Install the device (03) on the chain.
3. Screw in the stop spindle (02) until the stop pin (02a) rests against the chain pin.
4. Screw in the thrust spindle (02) and press out the chain pin.
5. Unscrew the stop spindle (02) and remove the device (03). Remove the pin from the device (03).
Assembling the chain
1. Connect the new chain (5) to the old one (4) using a connecting link consisting of a lock (6), plate (7), intermediate plate and cover (8).
2. Turn the crankshaft in the direction of engine rotation using a wrench. Hold the chain (5) with your hand on the right exhaust camshaft sprocket (9) and pull the lower end of the chain (4) out of the timing chain cover.
3. Continue to rotate the engine crankshaft until it is possible to connect both ends of the new chain with a connecting link.
4. Disconnect the old chain and remove the connecting link.
5. Connect the new chain with a connecting link and an intermediate plate (1.6 mm thick). 6. Place the stop piece with the broach (F1) in the riveting tool and screw in the bolt (28).
7. Install the stop piece with the tang (D5) into the riveting tool.
8. Insert the outer plate (11) (1.2 mm thick) into the thrust piece (D5).
9. Install the rods (arrows) onto the connecting link pins. Screw in the spindle (06) until you feel full resistance. When screwing in, make sure that the connecting link pins enter the hole in the plate correctly.
10. Install the stop piece with a scriber (D5).
11. Place the riveting tool in the middle of the plate.
12. Tighten the spindle (06). Tightening torque 30-35 Nm.
Attention! The connecting link pins are riveted separately.
13. Check the quality of riveting, repeat the process if necessary.
(Original article is on the portal: Mercedesman.ru)