Nova
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2 E 3 - Carburettor
Characteristics / Calibration
Engine 13 SB as of 8 / 85 14 NV Output kW (HP) 51 (70) 55 (75) Transmission MT MT
Code number 90 107 515 90 107 560
Idle fuel / air jet 42.5 / 132.5 45 / 130 Float weight g 5.85 ± 0.1 5.85 ± 0.1
Float level mm 29 ± 1 29 ± 1 Injection quantity cm3/10 strokes 12 ± 1.5 12 ± 1.5 Choke valve gap "small" mm 1.7 ± 0.2 1.9 ± 0.2 "large" mm 2.4 ± 0.2 2.7 ± 0.2 "A" mm 0.9 ± 0.2 0.85 ± 0.05 Choke valve forced opening gap "B" mm 2.5 ± 1.0 2.5 ± 1.0 Pulldown box identification 55 59 Pretension of pull rod 2nd stage mm 1.25 ± 0.75 1.25 ± 0.75 Release of forced return Dim. "2" mm 0.6 0.40.3 of 2nd stage Dim."1" mm 1.0 0.8 ± 0.3 Enrichment tube: height above preatomizer mm 23 ± 1.0 23 ± 1.0 Intake air preheating element: resistance at 20 °C Ohm ca. 1.5 - - - - Thermo time valve Valve is open °C below approx. 28 below approx. 28 Valve closed °C above approx. 35 above approx. 35 Resistance at 20 - 30 °C Ohm 6 ± 1.5 6 ± 1.5 Change-over time at 20 °C secs 7 ± 3 7 ± 3
Stage I II I II Main jet 97.5 112.5 95 110 Air correction jet 80 100 117.5 90 Throttle valve gap basic adjustment mm 0.8 ± 0.05 0.05 0.85 ± 0.05 0.05
Fast idle rpm 2300 ± 200 2400 ± 200 Idle speed rpm 925 ± 25 925 ± 25 CO content VOL % 0.75 ± 0.25 1.0 ± 0.5
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