The crankshaft seals are replaced when oil leaks through the cuffs

We install the car on a viewing ditch or lift and remove it:

  • - oil pan;
  • - radiator of the cooling system;
  • - drive belts of aggregates;
  • - a viscous coupling with an impeller.

For convenience, you can remove the front panel

Engage fourth gear and parking brake

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

Unscrew the ratchet bolt with a 46 head or blows of a hammer through the hammer

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

A lock washer is installed under the ratchet bolt

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

With a 12 head, unscrew the six bolts securing the pulley to the hub

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

Remove the pulley

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

Using a puller, we press the pulley hub off the crankshaft

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

Remove the hub

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

Using a 14 wrench, unscrew the oil cooler hose fitting, holding the adapter with a 17 wrench

Through the hose we drain the remaining oil from the oil cooler

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

With a 13 key, unscrew the six nuts securing the front cover to the cylinder block

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

Using a 12 and 13 wrench, unscrew the remaining three nuts

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

Remove the cover

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

Knock out the gland with a hammer through the beard

How to replace crankshaft oil seals for UAZ-3151, -31512, -31514, -31519

Using a mandrel or a piece of pipe of a suitable size, we press in a new cuff

Install the cover in reverse order

Hubsat the crankshaft pulley we press with a ratchet bolt

After assembly, we check the tightness of the stuffing box and cover

Replacing the crankshaft rear oil seal

We prepare the car for work, install it on a lift or a viewing ditch

Remove the transfer case and gearbox

Remove the clutch discs

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

With a 17 head, unscrew the seven flywheel mounting bolts.

We keep the flywheel from turning with a mounting spatula or a large screwdriver

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

Remove the special washer

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

Removing the flywheel

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

With a 10 key, unscrew the two bolts securing the lower and three bolts securing the upper cuff plates

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

Remove the bottom plate of the stuffing box

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

Remove the top plate of the stuffing box

How to replace crankshaft oil seals for UAZ-3151, -31512, -31514, -31519

With a sharp chisel, carefully, so as not to damage the seat and the neck of the crankshaft, we cut the cuff

How to replace crankshaft seals for UAZ-3151, -31512, -31514, -31519

Introduce the blade of a flat screwdriver into the resulting gap and, placing an emphasis under it, press out the cuff

How to replace crankshaft oil seals for UAZ-3151, -31512, -31514, -31519

With light blows of a hammer, we press in a new oil seal, lubricating its outer surface with engine oil and using the old cuff as a mandrel.

Install parts in reverse order