Section 13
TECHNICAL DATA
Sub-Section 01
(SP AND SPI MODELS)
13-01-1
SP AND SPI MODELS
1
ENGINE
SP (5876)
SPI (5878)
Engine type
Bombardier-Rotax 587
Induction type
Rotary valve
Exhaust system
Type
Water cooled, water injected
Water injection fitting
4.6 mm (.181 in)
Starting system
Electric start
Lubrication
Fuel / oil mixture
VROI (Variable Rate Oil Injection
Oil injection pump
Gear driven
Oil type
BOMBARDIER-ROTAX injection oil
Number of cylinders
2
Bore
Standard
76.0 mm
(2.992 in)
First oversize
76.25 mm
(3.002 in)
Second oversize
76.50 mm
(3.012 in)
Stroke
64 mm
(2.520 in)
Displacement
580.7 cm³
(35.4 in³)
Corrected compression ratio
6.5 : 1
Cylinder head warpage (maximum)
0.05 mm
(.002 in)
Piston ring type and quantity
1 Semi-trapez – 1 Rectangular
Ring end gap
New
0.25 - 0.40 mm
(.010 - .016 in)
Wear limit
1.00 mm
(.039 in)
Ring / piston groove
clearance
New
0.05 - 0.08 mm
(.002 - .003 in)
Wear limit
0.2 mm
(.008 in)
Piston / cylinder wall
clearance
New
0.05 - 0.07 mm
(.002 - .003 in)
Wear limit
0.2 mm
(.008 in)
Cylinder taper (maximum)
0.100 mm
(.004 in)
Cylinder out of round (maximum)
0.080 mm
(.003 in)
Connecting rod bigend
axial play
New
0.39 - 0.74 mm
(.015 - .029 in)
Wear limit
1.2 mm
(.047 in)
Crankshaft deflection
➀
Rotary valve timing
Opening
130° ± 5 BTDC
Closing
65° ± 5 ATDC
Rotary valve duration
147°
Crankcase / rotary valve gap
0.25 - 0.35 mm
(.010 - .014 in)
Connecting rod / crank-
shaft pin radial clearance
New
0.02 - 0.03 mm
(.0008 - .0013 in)
Wear limit
0.050 mm
(.002 in)
Connecting rod / piston
pin radial clearance
New
0.003 - 0.012 mm
(.00012 - .00047 in)
Wear limit
0.015 mm
(.00059 in)
ADDITIONAL INFORMATION : Squish gap : 1.2 - 1.8 mm (.047 - .071 in).
➀
MAG side : 0.05 mm (.002 in)
PTO side : 0.03 mm (.001in)
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