A R175A diesel engine experienced difficulty starting before the scheduled overhaul, during which the cylinder liner, piston, piston rings, valves, valve seats, and connecting rod were replaced. Three precision couplings were also installed. However, despite these efforts, the engine still had trouble starting and ran roughly once started, with no significant increase in speed when fuel was supplied. During the inspection, it was found that the oil pump pressure was insufficient. Further investigation revealed that the decompression pump had a damaged valve gasket, which showed visible scratches and even a fracture.
Upon closer examination, it was discovered that the original valve gasket had been accidentally broken while being removed using a screwdriver. This damage caused high and low-pressure oil leakage in the fuel pump, leading to the malfunction. After replacing the oil valve gasket, the issue was resolved.
It was noted that the new oil valve gasket was installed with higher pressure and had a smaller diameter, making it more prone to deformation and easier to damage when prying. Therefore, it is recommended that whenever the oil valve is replaced, the gasket should be replaced at the same time to ensure proper sealing and prevent future issues. This experience highlights the importance of careful handling during maintenance to avoid unnecessary complications and downtime.
Two-Component Epoxy Resin Adhesive
Characteristics of two-component epoxy resin adhesive
1.Strong bonding force: It has excellent bonding performance to various materials and can form a firm and lasting bond.
2.Adjustability: The curing time and performance can be controlled by adjusting the ratio of the two components.
3.Chemical resistance: It can resist the erosion of various chemical substances such as acids, alkalis, and salts.
4.High mechanical strength: After curing, it has high hardness and strength and can withstand large stresses.
5.Good electrical insulation: It is suitable for insulation and encapsulation in the field of electronics and electrical appliances.
6.Good heat resistance: It can maintain stable performance within a certain temperature range.
Â
Uses of two-component epoxy resin adhesive：
In the industrial field of two-component epoxy resin adhesive:
Used for bonding and repairing parts in mechanical manufacturing, such as the connection of metal structures.
Used for bonding and structural reinforcement of composite materials in the aerospace field.
Used for encapsulation and fixation of components on circuit boards in the electronics and electrical appliance industry.
In the construction field:
Used for repairing and strengthening concrete structures to improve the strength and durability of the structure.
Used for pasting tiles, stones, etc. to provide a firm bonding effect.
In the handicraft production of two-component epoxy resin adhesive:
Can be used to make exquisite resin handicrafts such as sculptures and accessories.
In other fields:
Used for bonding and sealing body parts in automobile manufacturing.
Used for repairing and anti-corrosion of ship hulls in shipbuilding.
ab glue epoxy, two part epoxy,epoxy glue for metal,metal adhesive,strongest glue,epoxy structural adhesive, epoxy two part adhesive, strongest two part epoxy
Dongguan Shuangzhan Industrial Co.,Ltd , https://www.lingwogroup.com