Takeout six pipe plugs (1).
C o o l a n t leakage around expansion plugs (2) will show
u p as rust, scale or stain on side of crankcase (3)
C h e c k that two expansion plugs (2) are not damaged and that there are no
s i g n s of coolant leakage. M a r k damaged or leaking plugs for removal.
GO TO FRAME 3