DAELIM ET-250 Service Manual page 122

Check any wear and damage of the mechanical seal and
inside seal.
Caution
The mechanical seal and inside
seal must be replaced as a unit.
Replacement of Mechanical Seal
Remove the inside bearing by inner bearing puller.
Drive the mechanical seal and inner seal out of the right
crankcase.
Special tools:
Inner bearing puller
Water pump bearing driver
Caution
Replace a new mechanical seal after removing
it.
Apply a coat of sealant to the mating surfaces of the right
crankcase before installing the new mechanical seal.
Install the mechanical seal onto the right crankcase.
Special tools:
Water pump mechanical seal driver
Mechanical seal
Water pump mechanical
seal driver
Water pump bearing
driver
Mechanical seal