leaky crank seal

motoman159

Active Member
Mar 8, 2012
2,350
105
105
central Florida
ok so im buying yamaha28's bottom end, everythings new... but the seals leak 1 psi per minute.. am i going to have to replace the brand new seals??
 
YES on which ever seal is leaking! IF they are new and the other side isn't leaking no need to change it, cept for practice!
 
if it is leaking at the collar you don't have to replace any seals. unless it is between the collar and seal. if it is between the collar and crank, that can be fixed