ENGINE
Inspecting the Cylinder Block and Components
12/05
6LY3 Service Manual
5-23
© 2007 Yanmar Marine International
Replacing Freeze Plugs
Step
No.
Description Procedure Tool or Material Used
1
1 – Cylinder Block
2 – Hammer
3 – Screwdriver
4–Plug
Set the screwdriver at a slight angle in
the upper portion of the plug. Tap lightly
with a hammer and remove the plug.
• Screwdriver
• Hammer
2
1 – Clean and Apply Adhesive
Wipe the cylinder block and plug
opening clean. Apply an adhesive
agent (acrylic) on the outside surface of
the plug and cylinder block opening.
• Thinner
• Adhesive agent
(or Three Bond
®
1386B)
3
1–Jig
Insert the plug using a driver and
hammer. (Drive the plug straight into
the opening.)
•Driver
• Hammer
4
Do not add coolant to the cylinder block
for two hours after the plugs are set.
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