41 mm tuning cylinder with diaphragm control for Sachs 2-, 3- and 4-speed engines with blower control, which were installed on Hercules 50/ALS, 50/2 S, 50/KS, 50/2 DK, 50/3 LS, 50/4 LKS, Gritzner, etc., among others.
Outlet thread: M35x2 mm
Ø outer: approx. 92 mm
Ø raceway: 41.01 mm
Ø piston: 40.94 mm
Pin spacing: 51x40 mm
For matching attachments, see accessories.
Good, inexpensive standard spare part. GPO – GOOD PARTS ONLY.
The set includes the following fixed parts:
Manufacturer: GPO · Nominal diameter: 40 mm · Ø outside piston (A): 40.94 mm · Ø piston pin (B): 12 mm · Compression height (C): 28 mm · Curvature (D): 3.2 mm · Total piston height (E): 49.4 mm · Number of piston rings (F): 2 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.5 mm · Thick piston ring: 1.8 mm · Weight: 86 g
Manufacturer: GPO · Material: Gray cast iron · Nominal diameter: 41 mm
Hole pattern [mm]: 51 x 40 mm · Number of components: 4 pcs · Hole spacing inlet: 31 mm · Ø outlet inside: 28 - 32 mm · Area of application: Standard, Tuning
Manufacturer: swiing® revival parts · Material: Steel · Surface: blue galvanized · Area of application: Standard · Diameter: 4.9 mm · Thread type: M5x0.8 (standard thread) · Total length: 23 mm · Thread length: 6 mm, 12 mm · Pony spare part no.: A3700 · Sachs spare part no.: 0640 016 101, 0640 016 102
Manufacturer: swiing® revival parts · Material: Oiled paper · Thickness: 0.4 mm · Hole spacing inlet: 67 mm · Pony spare part no.: A1840 · Sachs spare part no.: 0250 106 00
Details
| Nominal diameter | 41 mm |
| Manufacturer | GPO |
| Material | Gray cast iron |
| Displacement | 55 ccm |
| Crankshaft stroke | 42 mm |
| Surface | sandblasted |
| Thread inlet | M5x0.8 (standard thread) |
| Hole spacing inlet | 67 mm |
| Ø piston pin (B) | 12 mm |
| Outlet type | Union nut |
| Thread outlet | M35x2 (standard thread) |
| Hole pattern [mm] | 51 x 40 |
| Number of fixing points | 4 pcs |
| Camouflaged | No |
| Area of application | Tuning |
Suitable for the following models
| Sachs | 50 (Fahrtwind, 1.25 / 1.5 PS, DE) 50/3 50/4 - MLFB (2.6 PS), LKH (4.5 PS) |
Accessories & related products
Diaphragm insert Sachs 50/2
Area of application: Standard · Material: Brass · Number of flaps: 2 pcs · Membrane material: Spring steel · Number of fixing points: 2 pcs · Ø mounting hole: 5.2 mm · Mounting type: Screws · Hole spacing: 67 mm · Pony spare part no.: A2624 · Sachs spare part no.: 0286 213 010
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swiing® ingenious intermediate flange 12 mm diaphragm | Sachs 502, 50/2, 50/3, 50/4
Ø inside: 12 mm · Manufacturer: swiing® ingenious parts · Area of application: Standard · Material: Aluminum · Surface: anodized · Number of flaps: 2 pcs · Number of fixing points: 4 pcs · Mounting type: Screws · Hole spacing: 31 mm · Hole spacing: 67 mm · Thread type: M5x0.8 (standard thread)
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swiing® ingenious intermediate flange 13 mm diaphragm | Sachs 502, 50/2, 50/3, 50/4
Manufacturer: swiing® ingenious parts · Number of fixing points: 4 pcs · Hole spacing: 31 mm · Hole spacing: 67 mm · Material: Aluminum · Surface: anodized · Area of application: Standard · Area of application: Tuning · Number of flaps: 2 pcs · Thread type: M5x0.8 (standard thread) · Ø inside: 13 mm · Mounting type: Screws
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GPO piston 40.94 mm | Sachs 502, 50/2, 50/3, 50/4
Manufacturer: GPO · Thick piston ring: 1.8 mm · Ø outside piston (A): 40.94 mm · Compression height (C): 28 mm · Curvature (D): 3.2 mm · Total piston height (E): 49.4 mm · Number of piston rings (F): 2 pcs · Piston ring mold: Rectangular ring · Nominal diameter: 40 mm · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.5 mm · Ø piston pin (B): 12 mm · Weight: 86 g
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