Winnebago 1987-1989 LeSharo Service Manual page 73

ENGINE OVERHAUL & REBUILD
PISTON • SLEEVE ASSEMBLIES
REASSEMBLY
• Install a thrust collar (C), which corresponds to the
piston pin diameter, on the support block.
• Clamp a piston to the support block with the clip.
NOTE: When installed in the support block, the
arrow on the piston top must face down.
• The recess on the outside of the piston bore must
rest on the thrust collar (C).
• The following installation procedure must be
performed quickly for each connecting rod to
ensure that the heat loss is kept to a minimum.
WARNING
The connecting rods are HOT. Use protective hand
wear and exercise care during installation.
When the solder liquifies and becomes a small drop:
• wipe off the solder
• insert the guide (with the piston pin and mandrel)
into the piston bore.
• position a connecting rod in the applicable piston
with the cylinder number mark (0) to the left and
oil hole in rod to oil galley inside.
NOTE: The cylinder number mark made during
removal must face the intermediate shaft
when the connecting rod is installed in the
cylinder block.
• QUICKLY insert the piston pin into the connecting
rod bore until the guide contacts the support
block. Pin should slide freely into bore. Do not
install using a press.
• after a few seconds, remove the piston and
connecting rod assembly from the support block
• remove the guide and mandrel assembly
• move the connecting rod from one extreme to the
other and ensure that the piston pin is properly
recessed from the outside perimeter of the piston
at all positions.
• repeat the installation procedure for the
remaining connecting rods and pistons.
83-22
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