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Senior Rotax Engine Rebuild Report Form
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Indicates required field
Owner Name
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First
Last
Reason For Rebuild
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Engine Builder
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Engine Number
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Old Seal Number
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New Seal Number
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Date Sealed
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Workshop Temp
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Cylinder No
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New Cylinder No
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Piston Size
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Squish Before
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Senior Max Min = 0.95mm Set = 1.15mm Junior Max Min = 1.20mm Set = 1.45mm
Squish After
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Senior Max Min = 0.95mm Set = 1.15mm Junior Max Min = 1.20mm Set = 1.45mm
Bore Size-54.035 Max
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Max 54.035mm (10mm Above Ex Port)
Stroke 54.5mm +/- 0.1mm
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Exhaust Port Height
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Piston Size
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Cylinder Height - 87.0mm -0.05/+0.1mm 86.95 to 87.1
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87.00 +0.10 / -0.05
Head Height 27.55 Max, 27.45 Min
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28.8mm +/- 0.2mm
Head Height 28.8 +/-0.2mm
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100mm +/- 0.2mm
Exhaust Port Height
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27.8mm From TDC using Feeler Gauge 0.4 x 3mm
Stroke
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54.5mm +/- 0.1mm
Reed Petal Thickness
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0.60mm +/- 0.08mm
Reed Petal Opening
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Reeds Gap
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38.7mm Max (223996 & 223997 Cyl)
Power Valve Length
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New Parts Fitted
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Cylinder
Cylinder Head
Piston & Ring
Ring
Piston Pin
Small End Cage
Connecting Rod Assembly
Complete Crank Assembly
Main Bearings
Balance Shaft Bearings
Balance Shaft
Balance Gears
Crank Oil Seal - Drive Side
Crank Oil Seal - Gear Side
Water Pump Seals
Water Pump Impeller Kit
Water Pump Pinion
Drive Gear
Idle Gear
Big End Needle Bearing
Big End Pin
Clutch
Clutch Drum
Log Book
Bearing Set
Top End Gasket Set
Full Gasket Set
Seal
Comments & Notes
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ID Card Number
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New ID Card Number
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Log Book Stamped
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Yes
No
Log Book (s) Returned
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Yes
No
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