Crankcase Assembly; Crankcase And Oil Pan - International VT 275 V6 Manual

Crankcase Assembly

• The VT 275 has four main bearings but
replaces the traditional individual main
bearing caps with a one-piece lower
crankcase assembly. The lower crankcase
is made of cast iron and is stronger than
the individual caps. The lower crankcase is
attached to the crankcase with sixteen
14mm main bearing bolts of two lengths
with the shorter bolts to the outside. Three
additional 8mm bolts are used on each
side at the perimeter. The lower crankcase
is sealed to the crankcase with two push-
in-place seals.

Crankcase and Oil Pan

• The upper oil pan bolts to the lower
crankcase and is sealed with a full
perimeter push-in-place gasket. The lower
sheet metal oil pan is sealed to the upper
cast aluminum oil pan with a full perimeter
push-in-place gasket. The upper oil pan is
wider than the crankcase and allows for
greater oil pan capacity
increased depth.
• The oil pickup is sealed to the upper oil
pan with an O-ring and attached with two
6mm bolts. Oil pulled through the oil
pickup tube passes through a passage
cast in the upper oil pan to the lower
crankcase. The lower crankcase has a
machined passage that takes oil to a front
cover passage that leads to the oil pump.
Openings in the upper oil pan allow oil to
return to the pan during engine operation
but also serve to keep oil in the pan away
from the rotating crankshaft.
L L O O W W E E R R O O I I L L P P A A N N
L L O O W W E E R R O O I I L L P P A A N N
without O O I I L L P P I I C C K K - - U U P P T T U U B B E E
O O I I L L P P I I C C K K - - U U P P T T U U B B E E
C C R R A A N N K K S S H H A A F F T T
C C R R A A N N K K S S H H A A F F T T
U U P P P P E E R R
U U P P P P E E R R
C C R R A A N N K K C C A A S S E E
C C R R A A N N K K C C A A S S E E
International ® VT 275 V6 Engine
VT 275 DESIGN FEATURES
1 1 4 4 m m m m M M A A I I N N B B E E A A R R I I N N G G B B O O L L T T S S
1 1 4 4 m m m m M M A A I I N N B B E E A A R R I I N N G G B B O O L L T T S S
L L O O W W E E R R C C R R A A N N K K C C A A S S E E
L L O O W W E E R R C C R R A A N N K K C C A A S S E E
8 8 m m m m B B O O L L T T S S
U U P P P P E E R R O O I I L L P P A A N N
U U P P P P E E R R O O I I L L P P A A N N
L L O O W W E E R R
L L O O W W E E R R
C C R R A A N N K K C C A A S S E E
C C R R A A N N K K C C A A S S E E
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