The chain is replaced when it is stretched and removed when the engine is repaired.

To replace the chain, you need to remove the engine from the GAZelle NEXT car

To carry out the work, you will need keys: hexagons for 5, 6, socket heads for 10, 15 and a device for holding the master disk of the phase sensor from turning.

We remove the engine.

We install the piston of the first cylinder at the TDC of the compression stroke (article - Installing the TDC of the first cylinder Cummins ISF2.8).

Замена цепи газораспределительного механизма Cummins ISF2.8Замена цепи газораспределительного механизма Cummins ISF2.8Замена цепи газораспределительного механизма Cummins ISF2.8

We unscrew the five bolts securing the crankcase cover of the timing drive

Remove the cover

Remove the gasket. When installing, you need to replace the gasket

Замена цепи газораспределительного механизма Cummins ISF2.8Замена цепи газораспределительного механизма Cummins ISF2.8

Unscrew the two bolts securing the chain tensioner cover

Remove the cover

Замена цепи газораспределительного механизма Cummins ISF2.8Замена цепи газораспределительного механизма Cummins ISF2.8

We remove the hydraulic tensioner plunger

We fix the chain by tying with a wire

We loosen the tightening of the mounting bolt of the drive disc and the camshaft sprocket, keeping the shaft from turning.

Замена цепи газораспределительного механизма Cummins ISF2.8Замена цепи газораспределительного механизма Cummins ISF2.8

We completely unscrew the bolt securing the master disk of the phase sensor and the camshaft sprocket

After unscrewing the bolt securing the master disk of the phase sensor and the camshaft sprocket, the crankshaft and the camshaft must not be rotated so as not to disturb the valve timing.

Замена цепи газораспределительного механизма Cummins ISF2.8Замена цепи газораспределительного механизма Cummins ISF2.8

Removing the disc

Remove the sprocket with the chain from the camshaft shank

Замена цепи газораспределительного механизма Cummins ISF2.8Замена цепи газораспределительного механизма Cummins ISF2.8

We remove the spacer washer so as not to lose it

We fix the timing chain on the engine together with an asterisk

Замена цепи газораспределительного механизма Cummins ISF2.8Замена цепи газораспределительного механизма Cummins ISF2.8

We unscrew the two bolts securing the crankcase of the timing drive to the flywheel housing

An arrangement of bolts of fastening of a crankcase of a drive of a timing mechanism

Remove the clutch housing

Замена цепи газораспределительного механизма Cummins ISF2.8Замена цепи газораспределительного механизма Cummins ISF2.8

We remove the flywheel (article - Removing and installing the flywheel of the Cummins ISF2.8 engine)

We unscrew the ten bolts securing the flywheel housing to the cylinder block.

Замена цепи газораспределительного механизма Cummins ISF2.8Замена цепи газораспределительного механизма Cummins ISF2.8

The flywheel housing bolts differ in diameter and length, you need to remember their location. The flywheel housing weighs 23 kg, so you need to remove it with a second person.

Using a mallet or a rubber hammer, we pull the crankcase from its place and remove it together with the starter.

Замена цепи газораспределительного механизма Cummins ISF2.8Замена цепи газораспределительного механизма Cummins ISF2.8

We unscrew the mounting bolts of the shoe "A" of the tensioner and the damper "B"

We remove the bolts and remove the shoe and damper.

Замена цепи газораспределительного механизма Cummins ISF2.8

We inspect the boot "A" of the tensioner and the damper "B", if there is strong wear, then we replace them

Замена цепи газораспределительного механизма Cummins ISF2.8

We remove the camshaft sprocket from the chain

Removing the chain from the intermediate gear sprocket, remove it from the engine

Замена цепи газораспределительного механизма Cummins ISF2.8

Install the chain and all parts in reverse order

Before installing the flywheel housing, make sure the two dowel sleeves are in place.

Замена цепи газораспределительного механизма Cummins ISF2.8Замена цепи газораспределительного механизма Cummins ISF2.8

Apply heat-resistant sealant to the mating surface of the flywheel housing to the cylinder block.

Tighten the bolts in the sequence shown in the figure.

Tighten the M8 bolts with a torque of 24 Nm, and the M12 bolts with a torque of 85 Nm.

We check the correct valve timing.