Digital Restoration

O.S. ENGINES OS-MAX-10FSR-B

Welcome to a tour through the results of the digital restoration of this 1.76 cc glow plug engine with longitudinally finned extreme cooling head.

 

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An engine type of the FSR 1.76 cc series, which I had only noticed relatively late during the restoration of the GO-KART-10-GP. This motor type was also installed there as an alternative to the OS-MAX-10FSR-C with rotated extreme cooling head.


Single-cylinder 2-stroke engine with glow plug ignition, Schnürle flushing, rotary valve crankshaft, side exhaust, crankshaft bearing as pressed-in bronze bushing, throttle carburetor with cylindrical throttle plug. Special extreme cooling head for air cooling with longitudinal ribbing made of fine die-cast aluminum.

Other engines

OS-MAX-10FSR-B

OS-MAX-10FSR-C

OS-MAX-10FP-M

OS-MAX-50SX-H

OS-RE-49

OS-RE-49-PI

OS-RE-49-PI-GOLD

OS-RE-49-PI-II

OS-RE-49-PI-II-GOLD

OS-RE-98-PI-2C

OS-RE-147-PI-3C

OS-FS-20

HB-25H

OS-MAX-10FSR

OS-MAX-10FSR-S

OS-MAX-10FSR-B

OS-MAX-10FSR-C

Displacement            1.76 ccm (0.107 cu.in)

Bore                            13.44 mm

Stroke                         12.40 mm

rpm range                  3,000...18,000 1/min

Performance              0.27 PS / 0.198 kW @ 17,000 1/min

Compression ratio    9.0:1 (full stroke)

Port timing                 Exhaust 146°, Transfer 124°, Third port 108°

Combustion type       2-stroke

Fuel                              Methanol, Oil, Nitromethane

CAD-models            24.06.2022 - 22.08.2022

Rendering                24.07.2022 - 10.08.2022

Blueprint                  01.07.2023 - 09.07.2023

Step-model              _1486_os-max-10fsr-b.stp

Engine purchase     16.05.2022

Production date      approx. 1986




Not available