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1.禁止热机拆卸汽油机,当机体温度降到室温时才能进行拆卸,但拆卸火花塞、汽化器、磁电机时除外。 2.汽油机大部分零件由铝制造,拆装要轻。紧固螺钉、螺母时,用力不要过大,防止螺纹脱扣损坏。 3.拆卸活塞时,先用尖嘴钳取出活塞销挡环,将活塞放在机油中加热至130℃左右,再将活塞销轻轻打出,注意不要把连杆碰变形。安装活塞时,也要加热至130℃左右再装入活塞销,活塞顶部“箭头”要指向排气口。 4.拆装活塞环时,环口不要张开过大,因活塞环由铸铁制造,容易折断。
1. Do not dismantle the gasoline engine by the thermal engine. When the temperature of the engine body drops to room temperature, it can be disassembled, except when removing the spark plug, carburetor and magneto. 2. Most of the gasoline engine parts made of aluminum, disassembly should be light. Tighten the screws, nuts, the force is not too large, to prevent the thread tripping damage. 3. Remove the piston, the first use of needle nose pliers out of the piston pin retaining ring, the piston on the oil heated to about 130 ℃, and then gently tap the piston pin, be careful not to touch the rod deformation. Install the piston, but also heated to about 130 ℃ and then install the piston pin, the top of the piston “arrow” to point to the exhaust port. 4. When dismounting the piston ring, the ring mouth do not open too large, because the piston ring is made of cast iron, easy to break.