Description:
The fluid coupling seal in a Mitsubishi automatic transmission (AT) is a sealing device that prevents oil from leaking from the fluid coupling that connects the engine and transmission.
Design:
The seal is usually made of rubber and has a metalized frame for added strength. It is shaped like a collar with one or two sealing lips that seal tightly against the fluid coupling shaft to prevent leakage.
Function:
The main function of the fluid coupling oil seal is:
* Preventing transmission oil leakage from the fluid coupling
* Protect internal automatic transmission components from contamination and moisture
Types:
There are several types of fluid coupling seals for Mitsubishi automatic transmissions:
* Single lip: Have one sealing lip
*Double Lip: Features two sealing lips for improved sealing performance
* With boot: They have an additional protective cover (boot) that prevents the ingress of dirt and dust
Replacement:
Replacing a Mitsubishi automatic transmission fluid coupling oil seal is a complex task that requires special tools and knowledge. It is recommended to have this work done by an experienced mechanic.
Symptoms of malfunction:
A fluid coupling seal can fail for several reasons, including:
* Wear
*Damage
*Installing the wrong type of oil seal
A faulty fluid coupling seal can result in the following symptoms:
*Transmission oil leak
* Jerks when changing gears
*Transmission slippage
Service:
To ensure optimal operation of the automatic transmission, the fluid coupling seal should be checked regularly and replaced if necessary. Usually replacement is recommended every 60,000-100,000 km.