Disassembling the engine to replace worn parts

It is desirable to disassemble the engine on a special rotary stand

We remove the engine from the car, as indicated in the previous article

Removing the starter

Removing the generator

How to disassemble the engine of a Mazda 6

How to disassemble the engine of a Mazda 6How to disassemble a Mazda 6 car engine

Disconnect the gearbox from the engine by unscrewing the bolts of its attachment to the engine

Removing the clutch from the flywheel

How to disassemble the engine of a Mazda 6How to disassemble a Mazda 6 car engine

Removing the flywheel

Unscrew the six bolts securing the oil seal holder to the cylinder block

How to disassemble the engine of a Mazda 6How to disassemble a Mazda 6 car engine

We pry the oil seal holder with a screwdriver and remove the holder assembly with the oil seal

How to disassemble the engine of a Mazda 6How to disassemble a Mazda 6 car engine

Unscrew and remove the cylinder head, as indicated in the article "How to replace the gasket of the cover and cylinder head Mazda 6"

Removing the pallet

How to disassemble the engine of a Mazda 6

Unscrew the four mounting bolts and remove the oil pump

When disassembling the connecting rod-piston group, it is necessary to mark all the parts in order to install them in their places

How to disassemble the engine of a Mazda 6How to disassemble a Mazda 6 car engine

Unscrew the two bolts securing the cover 4 (Fig.1) of the connecting rod of any cylinder, shift the connecting rod cover from the seat with light hammer blows through a wooden spacer

Remove the lid with the liner

How to disassemble the engine of a Mazda 6How to disassemble a Mazda 6 car engine

Push the connecting rod with the hammer handle inside the cylinder and carefully remove the piston with the connecting rod from the cylinder

Make sure that the lower connecting rod head does not touch the cylinder walls, otherwise the cylinder surface may be damaged

We turn the crankshaft to access the bolts of the connecting rod covers, and remove the remaining pistons with connecting rods

How to disassemble the engine of a Mazda 6How to disassemble a Mazda 6 car engine

We remove the inserts from all connecting rods and their covers

How to disassemble the engine of a Mazda 6How to disassemble a Mazda 6 car engine

Unclench the upper compression ring and remove it

We also remove the second compression ring

How to disassemble the engine of a Mazda 6How to disassemble a Mazda 6 car engine

Unclench and remove the upper ring of the expander and the lower ring of the compound oil ring

We press the finger out of the piston and the upper connecting rod head

No need to heat the connecting rod before pressing the finger

How to disassemble the engine of a Mazda 6

Unscrew ten bolts securing the frame of the caps of the main bearings

We separate the frame from the seat with light hammer blows through a wooden spacer

How to disassemble the engine of a Mazda 6How to disassemble a Mazda 6 car engine

We remove the frame with the lower inserts

Removing the crankshaft

How to disassemble the engine of a Mazda 6

We remove the inserts of the main bearings from the frame of the covers of the main bearings and the beds of the cylinder block

When assembling:

In the bed of the middle (third) main bearing, we put a liner of increased thickness with support collars

How to disassemble the engine of a Mazda 6

We install the inserts so that the installation tendril of the insert is aligned with the recess on the bed