Mercury 7W7Z-7052-A Oil Seal Assembly

Leakages are usually caused by wear of extension housing oil seal and bushing, speedometer drive gear oil seal and O-ring. These seals can be replaced with ease most of the times without the need for the transmission to be unmounted from the car. The extension housing oil seal is placed at the rear extension housing area where the driveshaft joins with the transmission. Where there is suspicion of leakage, the vehicle should be jacked up and properly supported in order to gain access to the underside of the car. Some signs of a leaking seal are: transmission lubricant on the driveshaft and there can also be dripping from the back of the transmission. To replace the oil seal, it is necessary to pull out the driveshaft, then the oil seal can be pulled out with a screwdriver or pry bar, being very careful not to harm the splines of the transmission output shaft. If required, then Konmaru Special Oil Seal Remover can be employed for its removal as aforesaid. A sector of pipe or deep socket can also be used to install new oil seal guaranteeing that this is driven squarely and to the end. The splines of the output shaft of the transmission and the outer periphery of the sleeve yoke should be lubricated with light lubricants before the reinsertion of the driveshaft to prevent the damaging of the new lip seal. In the case of the speedometer driven gear housing or vehicle speed sensor mounted on the side of the extension housing, the speedometer cable or electrical connector is disconnected first, then the hold down bolt. Dipping a finger in transmission oil around the cable housing is a sign of compromise on the seal or O-ring. The seal can be pulled out with a hooked tool, when reassembling the driven gear housing and cable assembly a new O-ring should be placed into the driven gear housing .

Leakages are usually caused by wear of extension housing oil seal and bushing, speedometer drive gear oil seal and O-ring. These seals can be replaced with ease most of the times without the need for the transmission to be unmounted from the car. The extension housing oil seal is placed at the rear extension housing area where the driveshaft joins with the transmission. Where there is suspicion of leakage, the vehicle should be jacked up and properly supported in order to gain access to the underside of the car. Some signs of a leaking seal are: transmission lubricant on the driveshaft and there can also be dripping from the back of the transmission. To replace the oil seal, it is necessary to pull out the driveshaft, then the oil seal can be pulled out with a screwdriver or pry bar, being very careful not to harm the splines of the transmission output shaft. If required, then Konmaru Special Oil Seal Remover can be employed for its removal as aforesaid. A sector of pipe or deep socket can also be used to install new oil seal guaranteeing that this is driven squarely and to the end. The splines of the output shaft of the transmission and the outer periphery of the sleeve yoke should be lubricated with light lubricants before the reinsertion of the driveshaft to prevent the damaging of the new lip seal. In the case of the speedometer driven gear housing or vehicle speed sensor mounted on the side of the extension housing, the speedometer cable or electrical connector is disconnected first, then the hold down bolt. Dipping a finger in transmission oil around the cable housing is a sign of compromise on the seal or O-ring. The seal can be pulled out with a hooked tool, when reassembling the driven gear housing and cable assembly a new O-ring should be placed into the driven gear housing .