Home › Forum › Ask A Member › Sportwin Crankseal help › Re: Fastwin Crankseal help

#40090
fishbrick
Participant

    Next question, after looking at the diagram, I see there’s the seal and then an O-ring. Which of these is the most likely to leak and cause blow-by in the flywheel and mag plate? Also what’s the safest method of replacing them without splitting the case?