CYLINDER BLOCK ASSEMBLY 16
To remove glaze from the bore16A-04
A tool, known as a "Flex-Hone", is available to
correct the liner surface. This tool can be used with
an electric hand drill at low speed. The pistons and
connecting rods must be removed and the piston
cooling jets, where fitted, must also be removed.
Use covers to protect all engine components from
the debris which is caused during the process.
Details and supply of the "Flex-hone" are available
from:
Nicro (Leamington) Ltd.
Unit One
South Woodchester Trading Estate
Stroud
Gloucestershire GL5 5NR
Caution: Do not use a "Flex-hone" on the cylinder
liners of engine types AE and YE.
1 Grade 80SC Flex-Hone is to be used. A 4 inch
or 4 1/8 inch size Flex-Hone can be used according
to how badly the bore is glazed.
2 New Flex-Hones must be operated in an old liner
before use on an engine to remove all loose
material and sharp edges.
3 Lubricate lightly the liner and the Flex-Hone with
clean engine lubricating oil.
4 Put the tool in position on top of the liner, but do
not press the tool into the liner until the tool is
operated.
5 Operate the tool and move it up and down the
liner bore once a second for 30-50 seconds.
Remove the tool while it rotates.
6 Clean thoroughly the liner bore to remove all dirt
from the operation, use a hard brush and kerosene.
7 Dry the liners and remove carefully all the covers
used to protect the components. Clean thoroughly
all the engine components which have been
affected by debris.
8 Fit the piston cooling jets or the plugs. Ensure
that new piston rings are fitted when the engine is
assembled in accordance with the relevant sections
of this workshop manual.
Caution: After a glazed bore has been corrected,
these recommendations are advised for the first
240 km (150 miles) or 5 hours of operation:
• Do not operate the engine at full load.
• Do not operate the engine at high speed.
• Do not allow the engine to run at low idle
speed for extended periods.
Perkins Phaser/1000 Series, April 1995 16A.07
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