16 CYLINDER BLOCK ASSEMBLY
Cylinder liner
To inspect 16A-03
To ensure the best performance during the life of
the engine it is important that worn or damaged
cylinder liners are renewed. If a change of liner
becomes necessary in service, a service liner is
available.
The condition of a cylinder liner is decided by:
• The amount and location of any polished areas.
• Wear.
• Damage to the liner wall.
Notes: It will not be necessary to renew the liners
If:
• The honed finish can still be clearly seen.
• The engine performance and oil consumption is
acceptable.
To check the condition of a cylinder liner
1 Inspect the liner surface for cracks and deep
scratches.
2 Check the liner wall for areas where the honed
finish has been polished away. Check especially the
area around the top of the liner bore just below the
carbon ring. In this area, thrust from the top piston
ring is at its maximum.
Cautions:
• Damaged or worn liners must be discarded.
• New piston rings must be fitted when the
cylinder liner is renewed.
• An engine can have high oil consumption with
very little wear of the liner bores, if the surfaces of
the liners are glazed.
16A.06 Perkins Phaser/1000 Series, April 1995