Polaris 600 Dragon SP, Service Manual

Page: 61 / 308

ENGINE
3.11
600 ENGINE SERVICE DATA
Cylinder / Piston / Connecting Rod Engine No. -- EH590ALOE
Cylinder
Surface warpage limit (mating with cyl-
inder head)
0.004” (0.10 mm)
Cylinder bore Std 3.0118” (76.5mm)
Taper limit 0.00031” (0.008 mm)
Out of round limit 0.00030” (0.0075 mm)
Piston clearance Piston clearance
Limit .0022”
±
.00067” (.055
±
.017 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 3.0096”
±
.00035
I
(76.445
±
.009 mm)
Standard inner diameter of piston pin
bore
0.78757”
±
.00098
I
(20.0045
±
0.0025 mm)
Piston Pin Outer diameter 0.7874” -- .7872” (20 -- 19.995 mm)
Standard clearance-piston pin to pin
bore
0.00027”
±
0.00019” (0.007
±
0.005 mm)
Degree of fit Piston pin must be a push (by hand) fit at 68
°
F (20
°
C)
Piston Piston ring installed Top ring Piston
Ring
Piston ring installed
gap
Top ring
Limit 0.01181”
±
0.00393” (0.30
±
0.10 mm)
g g
Second Second
ring
Limit 0.01476”
±
0.00492” (0.375
±
0.125 mm)
Oil ring Oil ring
Limit 0.00984”
±
.00393” (0.25
±
0.10 mm)
Standard clearance Top ring Standard clearance
-
i t i t i
Top ring
Limit 0.0019”
±
0.00069” (0.0475
±
0.0175 mm)
piston ring to ring
groove
Second
groove
Second
ring
Limit 0.0017”
±
0.00049
I
(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-
di l l
Std 0.00098”
±
0.00039” (0.025
±
0.010 mm)
g
dial clearance
Connecting rod big end side
Connecting rod big end side
clearance
Limit 0.01181”
±
0.00591” (0.30
±
0.15 mm)
Connecting rod big end radial Connecting rod big end radial
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