Yanmar 4LHA-HTP User Manual

Chapter 2 Basic Engine
2. Cylinder Block
14LHA Series
2-4 Replacement of cup plugs
Step
No.
Description
Procedure
Tool or material used
Clean and remove grease from the hole into
which the cup plug is to be driven.
(Remove scale and sealing material previously
applied.)
•Screw driver or saw blade
•Thinner
Remove foreign
materials with a
screw driver
or saw blade.
Remove grease from the cup plug.
Visually check the nick around
the plug.
•Thinner
3. Apply Threebbnd No. 4 to the seat surface
where the plug is to be driven in.
Apply over the whole outside of
the plug.
•Threebond No. 4
Insert the plug into the hole.
Insert the plug so that it sits
correctly.
5.
Place a driving tool on the cup plug and drive it
in using a hammer.
Drive in the plug parallel to the
seating surface.
•Driving tool
•Hammer
fi
• 2^ 3mm (0.0787 ~ 0.1181 in.)
3mm(0.1181in.)
100mm (3.9370in.)
mm (in.)
•Using the special tool, drive the cup
plug to a depth where the edge of the
plug is 2mm (0.0787in.) below the
cylinder surface.
Plug dia.
d
D
014
013.9 -14.0 (00.547 - 0.551)
020(00.79)
040
039.9 ~ 40.0 (01.571 ~ 1.575)
050(01.97)
2-10

Yanmar 4LHA-HTP Specifications

General

Brand	Yanmar
Model	4LHA-HTP
Category	Engine
Language	English