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Old January 10th 06, 05:13 AM posted to rec.aviation.homebuilt
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Default Mazda single rotor weight?

1974 13B
Rear End Housing (Cast Iron) with oil relief valve.30.1 lbs
Trichoidal Section (Alum with Steel Liner).........13.5 lb
Front cover w/studs , no gear, Cast iron............25.5 lbs
Rotor and seals Cast iron................................12.0 lbs
Rear phasing gear Steel,withseal and bearing.....4.4 lbs
Flywheel end counter weight.............................4.5 lbs
Front Balance weight.......................................3.0 lbs
Excentric Shaft Single Rotor...........................10.0 lb
19 Cut down case bolts................................... 4.2 lbs
Aluminum front cover........................................6.3 lbs
Oil pump,drive chain,,mounting screws,............. 2.4 lbs
Oil pump chain tensioner assy...........................1.0
Water Pump housing (Aluminum)........................5.2
Water pump (aluminum).....................................3.X lbs
Shortened Oil Pan, Steel,...................................4.0 lbs
Water pump /Generator drive Pulleys & blots, ......1.6 lbs
Distributer drive gear...........................................0.5

BASIC ENGINE PARTS ONLY.............