Cylinder Liner Protrusion Measurement - Winnebago 1987-1989 LeSharo Service Manual

ENGINE OVERHAUL
&
REBUILD
REASSEMBLE CYLINDER BLOCK ASSEMBLY
CYLINDER LINER PROTRUSION MEASUREMENT
The cylinder liners are the WET type and require an
O-ring seal to provide a seal between the liner and
the cylinder block.
The cylinder liner protrusion above the cylinder block
can be measured according to the following
procedure:
• with the O-ring seal installed, insert each liner in
its original position in the cylinder block
• insert a dial indicator into support block Mot.
251-01 and tighten the screw clamp
• place thrust plate Mot. 252-01 acrosseach cylinder
liner and measure the liner protrusion above the
cylinder block with the dial indicator and support
block.
• the liner protrusion tolerance specification is
0.08-0.15 mm (0.003-0.006 in)
If an incorrect liner protrusion is indicated, measure
the protrusion using a replacement liner to
determine if the cylinder block or the liner is
defective.
Refer to the cylinder liner and block dimensions
listed in the illustrations.
Dimension
mm (in)
Liner height
148.5 mm
(5.846 in)
Bore diameter 88 mm
(3.464 in)
Base locating
93.6 mm
(3.685 in)
Liner protrusion
0.08 to 0.15 mm
(0.003 to 0.006)
Liner height (93.065 to 93.096) (3.663 to 3.665 in) Cylinder block
92.942 to 92.985 mm
(3.659 to 3.660 in) Cylinder block
149.25 to 149.75 mm
(5.875 to 5.895 in)
B3-26
Dial
Indicator Mot. 252-01
Mot. 251-01
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