Polaris 2005 Sportsman MV7 - Page 71

ENGINE
3.13
700 ENGINE SERVICE DATA
Cylinder / Piston / Connecting Rod Engine No. -- EH68ALOE / EH068OLE
Cylinder
Surface warpage limit (mating with cyl-
inder head)
0.004” (0.10 mm)
Cylinder bore Std 3.1495” (80 mm)
Taper limit 0.00031” (0.008 mm)
Out of round limit 0.00030” (0.0075 mm)
Piston clearance
P
i
s
t
o
n
c
l
e
a
r
a
n
c
e
Limit .0016” ± .00063” (.041 ± .016 mm)
Boring limit N/A
Lifter
Outer Diameter Std 0.84245” ± 0.00025” (21.39 8± 0.00635 mm)
Block Bore Std 0.8438” ± 0.00062”(21.4322 ± 0.0157 mm)
Piston
Std 3.1477” ± .00012I (79.954 ± .003 mm)
Standard inner diameter of piston pin
bore
0.78789” ± .0000098I (20.0125 ± 0.0025 mm)
Piston Pin
Outer diameter 0.7874” -- .7872” (20 -- 19.995 mm)
Standard clearance-piston pin to pin
bore
0.00059” ± 0.0002” (0.015 ± 0.005 mm)
Degree of fit Piston pin must be a push (by hand) fit at 68°
F(20° C)
Piston Piston rin
g
installed To
p
rin
g
P
i
s
t
o
n
Ring
P
i
s
t
o
n
r
i
n
g
i
n
s
t
a
l
l
e
d
gap
T
o
p
r
i
n
g
Limit 0.01083” ± 0.00295” (0.275 ± 0.075 mm)
g
g
Second
S
e
c
o
n
d
ring
Limit 0.0177” ± 0.00394” (0.45 ± 0.10 mm)
Oil rin
g
O
i
l
r
i
n
g
Limit 0.0177” ± .00984” (0.45 ± 0.25 mm)
Standard clearance To
p
rin
g
S
t
a
n
d
a
r
d
c
l
e
a
r
a
n
c
e
-
i
t
i
t
i
T
o
p
r
i
n
g
Limit 0.0019” ± 0.00069” (0.0475 ± 0.0175 mm)
piston ring to ring
g
r
o
o
v
e
Second
groove
S
e
c
o
n
d
ring
Limit 0.0017” ± 0.00049I (0.0425 ± 0.0125 mm)
Connect-
i
R
d
Connecting rod small end ID .789” -- .78841”. (20.030 -- 20.015 mm)
ing Rod
Connecting rod small end ra-
d
i
l
l
Std 0.00098” ± 0.00039” (0.025 ± 0.010 mm)
g
dial clearance
Connectin
g
rod bi
g
end side
C
o
n
n
e
c
t
i
n
g
r
o
d
b
i
g
e
n
d
s
i
d
e
clearance
Limit 0.01181” ± 0.00591” (0.30 ± 0.15 mm)
Connectin
g
rod bi
g
end radial
C
o
n
n
e
c
t
i
n
g
r
o
d
b
i
g
e
n
d
r
a
d
i
a
l
clearance
Limit 0.00015” ± 0.00006” (0.0038 ± 0.0015 mm)
Crankshaft Crankshaft runout limit 0.00236” (0.060 mm)
KEY - Std: Standard; OS: Oversize; ID: Inner Diameter; OD: Outer Diameter; Mag: Magneto Side;
PTO: Power Take Off Side