Replacement of exhaust pipes with engines ZMZ-4025, ZMZ-4061, 4026, ZMZ-4063

It is more convenient to work together on an inspection ditch or a lift.

Remove the engine mudguard and exhaust system resonator.

Replacement of intake pipes with ZMZ-4025 engines

Using a 14mm socket, unscrew the locknuts and nuts securing the intake pipes to the manifold.

One of the nuts can only be unscrewed with a 14mm spanner.

Replacement of intake pipes with ZMZ-4025 engines

Using keys “12” and “13”, unscrew the bolt securing the exhaust pipes to the gearbox bracket

Using a 13mm wrench, unscrew the two nuts of the clamp securing the exhaust pipe to the resonator.

Replacement of intake pipes with ZMZ-4025 engines

Disconnect the pipe from the manifold.

Replacement of intake pipes with ZMZ-4025 engines

Remove the gasket from the manifold studs

When installing pipes, we replace the gasket.

We recommend painting the entire exhaust system with heat-resistant paint on the outside.

Replacement of the exhaust pipe with engines ZMZ-40522 and ZMZ-40524

Disconnect the wiring harness of the oxygen concentration sensor (lambda probe)

Replacement of the intake pipe with ZMZ-40522 engines

Holding the bolts from turning, unscrew the nuts of the two bolts securing the catalytic converter to the exhaust pipe and remove the bolts.

Replacement of the intake pipe with ZMZ-40522 engines

Unscrew the converter from the exhaust pipe, remove the gasket

Replacement of the intake pipe with ZMZ-40522 engines

Unscrew the four nuts securing the exhaust pipe to the exhaust manifold

Replacement of the intake pipe with ZMZ-40522 engines

Remove the exhaust pipe

Replacement of the intake pipe with ZMZ-40522 engines

Remove the gasket

Install the parts in reverse order

new

The lubrication system diagram is shown in Fig. 1. Oil pressure in the lubrication system of a warm engine at low crankshaft speed 550–650 min -1

In the article we will consider possible malfunctions of the front axle of the UAZ-3151