Detailed Photos
Installation Instructions
Product Description
369-00001-0/1
Connecting Rod, Tohatsu,
For Outboard: Tohatsu M4C, Tohatsu M5B,Tohatsu M5BS
Features:
| 1. High-Performance Design: The piston is engineered to withstand the high temperatures and pressures generated during combustion. It has an optimized shape to ensure maximum power output while minimizing friction and wear. |
| 2. Heat Resistance: Piston kits for outboard motors are designed to resist the intense heat generated within the engine, ensuring consistent performance over time. |
| 3. Low Friction: The piston is designed with a smooth surface finish and precise tolerances, reducing friction between the piston and cylinder wall. This improves engine efficiency and longevity. |
| 4. Piston Rings for Sealing: The piston rings included in the kit provide a tight seal between the piston and the cylinder wall, preventing the leakage of combustion gases and maintaining compression. |
Functions:
| 1. Power Generation: The piston moves up and down inside the cylinder, driven by the combustion of fuel. As the piston moves downward, it transmits power through the connecting rod to the crankshaft, which drives the propeller. |
| 2. Compression and Combustion: The piston compresses the air-fuel mixture in the cylinder before ignition, allowing for a more powerful combustion process. Proper sealing by the piston rings ensures maximum efficiency. |
| 3. Heat Transfer: The piston also helps to dissipate the heat generated during combustion. The heat is transferred from the piston to the cylinder walls and ultimately to the cooling system. |
| 4. Lubrication Control: The piston rings manage the distribution of oil along the cylinder walls, reducing friction and wear between the moving parts. |
Size:
| 1. Piston Diameter: The size of the piston varies depending on the specific Tohatsu outboard motor model. Common piston diameters for Tohatsu outboards range from 50 mm to 90 mm, depending on the engine's horsepower and displacement. |
| 2. Stroke Length: The stroke (the distance the piston travels up and down within the cylinder) also depends on the engine design, with larger motors typically having longer strokes. |
| 3. Weight: Pistons are designed to be lightweight yet strong, typically weighing a few hundred grams to a kilogram depending on the engine size. Reducing weight helps enhance engine response and efficiency. |
Maintenance Tips:
| 1. Regular Inspection: During routine maintenance, inspect the piston, piston rings, and cylinder walls for signs of wear, scoring, or damage. This can prevent loss of compression and power output. |
| 2. Proper Lubrication: Always ensure that the engine oil levels are adequate and that high-quality marine-grade oil is used. Proper lubrication is essential to reduce wear on the piston and piston rings. |
| 3. Monitor for Blow-by: If the engine is producing excessive smoke or if there's a loss of compression, this could be a sign of worn piston rings, which may need replacement. |
| 4. Keep the Engine Cool: Overheating can cause the piston to expand too much, leading to scoring of the cylinder walls. Ensure the cooling system is functioning properly to avoid engine overheating. |
| 5. Replace Worn Components: Piston rings and pistons can wear out over time. If you notice symptoms such as excessive oil consumption, loss of power, or engine knocking, it may be time to replace the piston or rings. |
More Products We Have:
| Part No. |
Description |
| 369-00030-0 |
Crank Shak |
| 369-00031-0 |
Crank Shaft A |
| 369-00034-0 |
Crank Shak D |
| 369-00061-0 |
Crank Pin |
| 369-00040-0 |
Connecting Rod |
| 369-00043-0 |
Needle Bearing, 20-26-12 |
| 9603-3-6204 |
Ball Bearing, 6204 |
| 369-00115-0 |
Thrust Plate, Crank shaft |
| 369-00122-0 |
Oil Seal, 20-47-8 |
| 350-00042-0 |
Needle Bearing, 14-18-20 |
| 338-00131-0 |
Key, Magneto |
| 369-00001-0 |
Piston (Std) |
| 369-00004-0 |
Piston (0.5mm O/S) |
| 351-00011-0 |
Piston Ring (Std) |
| 351-00014-0 |
Piston Ring (0.5mm O/S) |
| 369-00021-0 |
Piston Pin |
| 350-00024-1 |
Clip, Piston Pin |
Company Profile
Audited Supplier 
){kind=link}