Why your valve oil seal is aging?

Home / News / NNK Oil Seal NEWS

Why your valve oil seal is aging?

Oct. 15, 2022

NOK-CN FACTORY

Valve oil seal is a kind of oil seal, generally by the outer skeleton and fluorine rubber jointly vulcanized, oil seal diameter mouth is installed with a self-tightening spring or steel wire, for the sealing of the engine valve guide rod.
The valve oil seal can prevent the oil from entering the intake and exhaust pipes, avoid oil loss, prevent gasoline and air mixtures and emission gas leakage, and prevent engine oil from entering the combustion chamber. The valve oil seal is one of the important parts of the engine valve set, which is in contact with gasoline and oil at high temperatures, so it is necessary to use materials with excellent heat resistance and oil resistance, generally made of fluoroelastomer

Valve stem seals prevent oil from contaminating the air/fuel mixture in the engine’s combustion chamber. They also prevent intake and exhaust gases from contaminating the oil in the cylinder head and the rest of the engine. Valve stem seams are like any other round seal, only much smaller. The inside diameter fits over the valve stem.

NOK-CN FACTORY

Why your valve oil seal is aging?

NOK-CN FACTORY

Why your valve oil seal is aging?

If your car is slow to accelerate or the car is emitting blue smoke, then your valve oil seal is already aging. So what is the cause of this series of problems?
The first is the problem of valve oil seal installation: for example, mixing in during installation, or foreign matter in the pipeline, dust, entering the seal and causing leakage; Poor assembly caused by seal damage caused by leakage; The wrong direction of the seal installation leads to leakage or because the coating is processed unevenly, and the paint enters the sealing layer.
The second is the selection of the seal: the gap bite caused by excessive pressure, and then mixed with the air, the adiabatic compression causes the seal to burn; High-frequency reciprocating movement causes the seal to heat up and dry grind; Environmental dust causes abnormal wear of the sealing ring; Rusting of the sealing groove causes leakage and other problems.
The third is the design of sealing equipment. This includes
1. The improper selection of the material of the guide support parts damages the cylinder barrel and piston rod
2. The friction pair gap is not suitable, resulting in the gap extrusion bite
3. The thread guide angle of the cylinder barrel piston cylinder end is improper, and the sealing ring is damaged
4. Improper sealing and installation of the guide angle damages the sealing ring
5. The roughness of the sliding surface is not suitable and the sealing ring is worn
6. The electroplating is uneven, and the surface through which the seal passes is cut and the sealing ring is scratched
7. The roughness of the sealing groove, especially the shaft sealing groove, is not enough, and the wear damages the seal
Finally, it may be the problem of the product itself, or the problem of sealing and storage, which is subject to high temperature during transportation, causing the sealing material to deteriorate and deteriorate.

NOK-CN FACTORY

Why your valve oil seal is aging?

Here are some popular models of valve oil seals, if you need to replace the valve oil seal, please contact the NOK-CN FACTORY

TOYOTA
NO. OEM QTY/SET Type
1 90913-02024 8PCS Valve Stem Seal
2 90913-02057 8PCS Valve Stem Seal
3 90913-02038 8PCS Valve Stem Seal
4 90913-02066 16PCS Valve Stem Seal
5 90913-02093 12PCS Valve Stem Seal
6 90913-02092 8PCS Valve Stem Seal
7 90913-02062 16PS Valve Stem Seal
8 90913-02062 24PCS Valve Stem Seal
9 90913-02071 12PCS Valve Stem Seal
10 90913-02033 8PCS Valve Stem Seal
11 90913-02016 8PCS Valve Stem Seal
12 90913-02053 8PCS Valve Stem Seal
13 90913-02090 16PCS Valve Stem Seal
14 90913-02103 8PCS Valve Stem Seal
15 90913-02065 8PCS Valve Stem Seal
16 90913-02028 8PCS Valve Stem Seal
17 90913-02051 8PCS Valve Stem Seal
18 90913-02076 8PCS Valve Stem Seal
19 90913-02108 16PCS Valve Stem Seal
20 90913-02116 8PCS Valve Stem Seal
21 90913-02060 8PCS Valve Stem Seal
22 90913-02117 8PCS Valve Stem Seal
23 90913-02101 16PCS Valve Stem Seal
24 90913-02111 12PCS Valve Stem Seal
25 90913-02086 16PCS Valve Stem Seal
26 90913-02088 8PCS Valve Stem Seal
27 90913-02096 24PCS Valve Stem Seal
28 90913-02097 12PCS Valve Stem Seal
29 90913-02089 24PCS Valve Stem Seal
30 91913-02092 16PCS Valve Stem Seal
31 90913-02105 8PCS Valve Stem Seal
32 90913-02120 16PCS Valve Stem Seal
33 90913-02095 24PCS Valve Stem Seal
34 90913-02112 12PCS Valve Stem Seal
35 90913-02053 12PCS Valve Stem Seal
NISSAN
NO. OEM QTY/SET Type
1 13207-H7200 8PCS Valve Stem Seal
2 13207-01M01 8PCS Valve Stem Seal
3 13207-01M01 16PCS Valve Stem Seal
4 13207-21002 8PCS Valve Stem Seal
5 13207-D0111 8PCS Valve Stem Seal
6 13207-D4200 16PCS Valve Stem Seal
7 13207-84A00 12PCS Valve Stem Seal
8 13207-77A00 8PCS Valve Stem Seal
9 13207-53Y10 16PCS Valve Stem Seal
10 13207-B5100 8PCS Valve Stem Seal
11 13207-81W00 8PCS Valve Stem Seal
12 13207-76200 8PCS Valve Stem Seal
13 13207-V1700 8PCS Valve Stem Seal
14 13207-V1700 12PCS Valve Stem Seal
15 13207-42L00 12PCS Valve Stem Seal
16 13207-2B500 24PCS Valve Stem Seal
17 13207-53F00 12PCS Valve Stem Seal
18 13207-2B100 16PCS Valve Stem Seal
19 13207-C6000 12PCS Valve Stem Seal
20 13207-5L300 16PCS Valve Stem Seal
21 13207-40F00 8PCS Valve Stem Seal
22 13207-Z5001 8PCS Valve Stem Seal
23 13207-97012 12PCS Valve Stem Seal
24 13207-97012 16PCS Valve Stem Seal
25 13207-97013 16PCS Valve Stem Seal
MITSUBISHI
NO. OEM QTY/SET Type
1 MD088384 12PCS Valve Stem Seal
2 MD016490 8PCS Valve Stem Seal
3 MD016490 12PCS Valve Stem Seal
4 MD302172 16PCS Valve Stem Seal
5 MD307341 8PCS Valve Stem Seal
6 MD000508 8PCS Valve Stem Seal
7 MD070695 8PCS Valve Stem Seal
8 MD088384 4PCS Valve Stem Seal
9 MD001166 8PCS Valve Stem Seal
10 MD016490 16PCS Valve Stem Seal
11 MD115472 8PCS Valve Stem Seal
12 MD184303 16PCS Valve Stem Seal
13 MD115472 16PCS Valve Stem Seal
14 MD024108 8PCS Valve Stem Seal
15 MD006268 4PCS Valve Stem Seal
16 MD061574 12PCS Valve Stem Seal
17 MD141536 16PCS Valve Stem Seal
18 MD141472 12PCS Valve Stem Seal
19 MD302172 16PCS Valve Stem Seal
20 MD159069 16PCS Valve Stem Seal
21 ME200524 8PCS Valve Stem Seal
22 ME024108 12PCS Valve Stem Seal
23 ME061574 12PCS Valve Stem Seal
24 3110401902 16PCS Valve Stem Seal
MAZDA
NO. OEM QTY/SET Type
1 8072-10-155 8PCS Valve Stem Seal
2 0249-12-195 8PCS Valve Stem Seal
3 817-10-155 8PCS Valve Stem Seal
4 HE19-10-155 8PCS Valve Stem Seal
5 B630-10-155 8PCS Valve Stem Seal
6 B660-10-155 16PCS Valve Stem Seal
7 KL01-10-155 8PCS Valve Stem Seal
8 KL02-10-155 8PCS Valve Stem Seal
9 WL01-10-155 12PCS Valve Stem Seal
10 B660-10-155 24PCS Valve Stem Seal
11 B630-10-155 12PCS Valve Stem Seal
12 Z501-10-155 8PCS Valve Stem Seal
13 KL01-10-155 16PCS Valve Stem Seal
14 SE01-10-155 8PCS Valve Stem Seal
ISUZU
NO. OEM QTY/SET Type
1 8-94208-522-0 8PCS Valve Stem Seal
2 9-12559-008-0 8PCS Valve Stem Seal
3 9-12569-001-0 8PCS Valve Stem Seal
4 5-12569-006-0 8PCS Valve Stem Seal
5 5-12569-072-0 12PCS Valve Stem Seal
6 8-94324158-0 12PCS Valve Stem Seal
7 8-94470946-0 16PCS Valve Stem Seal
8 9-12569-055-0 12PCS Valve Stem Seal
9 8-94396-609-1 8PCS Valve Stem Seal
10 8-94110559-0 8PCS Valve Stem Seal
DAIHATSU
NO. OEM QTY/SET Type
1 90048-12006 6PCS Valve Stem Seal
2 90048-12009 6PCS Valve Stem Seal
3 90048-12011 16PCS Valve Stem Seal
4 90048-12014 8PCS Valve Stem Seal
5 90048-12021 12PCS Valve Stem Seal
6 90048-12014 8PCS Valve Stem Seal
SUZUKI
NO. OEM QTY/SET Type
1 09289-07005 8PCS Valve Stem Seal
2 09289-81400 12PCS Valve Stem Seal
3 09289-07002 6PCS Valve Stem Seal
4 09289-05012 6PCS Valve Stem Seal
KOMATSU.........….3D95,4D95,4D105,6D95,6D105,6D110,6D125,6D155 Valve Stem Seal
DAEWOO.........…. F8A,G15MF,A15MF,X20ED Valve Stem Seal
HYUNDAL...........G4HC,4G15,G4E,H,D,P,C,H100,HD65/72,ATOS,SONATA,ACCENT Valve Stem Seal
BMW............…316,318,520,730 Valve Stem Seal
OPEL..............SV/NZ,4ECI/EI/T,X18XE1/20 Valve Stem Seal
PEUGOT.........…..305,405,504,505 Valve Stem Seal
  • wechat

    Mr ken (sales manager): +86 156 0767 8250