Replacing the oil sump seal ZMZ-406

If an oil leak through the oil pan gasket cannot be eliminated by tightening its fastening bolts, it means that the gasket is severely deformed and must be replaced

Perform work on a lift or a viewing hole.

You will need wrenches for 12,14,17 (sockets), extension, universal joints.

Remove the engine mudguard.

Drain the oil.

Sump gasket ZMZ-406

With a 14 head, we unscrew the four bolts securing the clutch crankcase amplifier to the block.

Sump gasket ZMZ-406

With keys 14 and 17, we unscrew the two bolts securing the amplifier to the clutch housing

Sump gasket ZMZ-406

Remove the oil cooler drain hose nut and disconnect the hose from the oil pan fitting.

Sump gasket ZMZ-406

And remove the amplifier.

Sump gasket ZMZ-406

We unscrew four nuts with a 13 head and a 12 key with eleven bolts securing the oil pan to the cylinder block.

Sump gasket ZMZ-406

Carefully, trying not to damage the gasket, remove the pallet from the studs and put it on the beam.

Sump gasket ZMZ-406

Before installing a new gasket, degrease the pressure surface of the oil sump and cylinder block, then install the gasket in place.

Sump gasket ZMZ-406

Install the oil sump and tighten the bolts and nuts securing to the cylinder block evenly in a criss-cross pattern as shown

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Repair of the crankshaft consists of regrinding the main and connecting rod journals to the next repair size

The hydraulic clutch release (Fig. 1) of vehicles of the UAZ-31512 family consists of a suspended pedal 19, a master cylinder 5, a hydraulic pipe 4, a hydraulic hose 24 and a working cylinder 25