Fig. 4 - High and Low Pressure Contact Areas
on Cylinder Liner
Fig. 2 -Cylinder Liner
Excessive liner-to-block clearance or block bore
Inspect Used Cylinder Liner
distortion will reduce heat transfer from the liner to the
block and to the engine coolant. Poor contact between
When the cylinder liner is removed from the cylinder
the liner and the block bore may be indicated by stains
block, it must be thoroughly cleaned and then checked
or low pressure areas on the outer surface of the liner
Examine the outside diameter of the liner for fretting.
Fretting is the result of a slight movement of the liner in
Poor contact on outer surface
the block bore during engine operation, which causes
material from the block to adhere to the liner. These
A cracked or excessively scored liner must be
metal particles may be removed from the surface of the
discarded. A slightly scored liner may be cleaned-up
liner with a coarse, flat stone.
The liner flange must be smooth and flat on both the top
and bottom surfaces. Check for cracks at the flange.
The liner insert must also be smooth and flat
Fig. 3. Removing Cylinder Liner.
Fig. 5. Glazed Surface of Cylinder Liner.