The engine oil sump is sealed with a sealant gasket

Replace the seal when a leak occurs or when the pallet is removed

We install the car on an observation ditch or a lift

Drain the oil from the engine

Replacing the Mazda engine sump seal 6

Unscrew the four bolts securing the gearbox to the engine oil sump

Replacing the Mazda engine sump seal 6

Unscrew the thirteen bolts securing the oil sump (pallet) to the engine cylinder block

Replacing the Mazda engine sump seal 6

Gently pry with a screwdriver and remove the oil sump

We clean the mating surfaces of the oil sump and cylinder block from the old sealant

We apply a special sealant-gasket with a 3-4 mm roller to the mating surface of the oil sump, and the line of application of the sealant-gasket should pass from the inside of the mounting holes

No later than 10 minutes after applying the sealant, we install the oil sump on the cylinder block and screw in the pallet mounting bolts without tightening

To ensure the tightness of the seal, the two subsequent operations must be completed no later than five minutes after installing the crankcase

We screw in the four bolts securing the gearbox to the oil sump and tighten them with a torque of 48 Nm (4.8 kg cm)

Replacing the Mazda 6 engine sump seal

Tighten the crankcase mounting bolts in the order shown in the figure in two stages:

- the first stage is pre-tightening with a torque of 20 Nm (2kgsm);

- the second stage is the final tightening with a torque of 48 Nm (4.8 kgsm).

We pour oil into the engine not earlier than one hour after installing the oil sump. This time is necessary for the polymerization of the sealant