BOMBARDIER SEA-DOO GTX RFI 5666 1998, Руководство пользователя

Страница: 39 / 47

Section 06 TECHNICAL DATA
Subsection 01 (GTX RFI MODEL)
06-01-1
GTX RFI MODEL 0
ENGINE GTX RFI (5666/5843)
Engine type BOMBARDIER-ROTAX 787
Induction type Rotary valve
Exhaust system
Type Water cooled, water injected with regulator
Water injection fitting
(head)
3.5 mm (.139 in)
Water injection fitting
(cone)
Not applicable
Water injection fitting
(muffler)
3.5 mm (.139 in)
Exhaust valve Rotax Adjustable Variable Exhaust (RAVE)
Starting system Electric start
Lubrication
Fuel/oil mixture VROI (Variable Rate Oil Injection)
Oil injection pump Direct driven
Oil injection type Formula XP-S (synthetic)
Number of cylinders 2
Bore
Standard 82 mm (3.228 in)
First oversize 82.25 mm (3.238 in)
Second oversize Not applicable
Stroke 74 mm (2.91 in)
Displacement 781.6 cm³ (47.7 in³)
Corrected compression ratio 6.0: 1
Combustion chamber volume 36.3 ± 1.6 cc
Cylinder head warpage (maximum) 0.05 mm (.002 in)
Piston ring type and quantity 1 Semi-trapez — 1 Rectangular
Ring end gap
New 0.40 - 0.55 mm (.016 - .022 in)
Wear limit 1.00 mm (.039 in)
Ring piston groove
New 0.025 - 0.070 mm (.001 - .003 in)
Wear limit 0.2 mm (.008 in)
Piston/cylinder wall
clearance
New (minimum) 0.15 mm (.006 in)
Wear limit 0.20 mm (.008 in)
Cylinder taper (maximum) 0.10 mm (.004 in)
Cylinder out of round (maximum) 0.08 mm (.003 in)
Connecting rod big end
axial play
New 0.230 - 0.617 mm (.009 - .024 in)
Wear limit 1.2 mm (.047 in)
Crankshaft deflection
MAG side: 0.050 mm (.002 in);
PTO side: 0.030 mm (.001 in)
Rotary valve timing
Opening 147° ± 5 BTDC
Closing 63.5° ± 5 ATDC
Rotary valve duration 159°
Rotary valve/cover clearance 0.25 - 0.35 mm (.010 - .014 in)
Connecting rod/crankshaft
pin radial clearance
New 0.023 - 0.034 mm (.0009 - .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: