Fluid Damper

Well they do get them wrong. I have had a few occasions where the dampener will not fit the crank snout.


LOL...that’s not wrong either. They have a specific press fit they want so the bore comes undersize so it can be honed for proper press fit. Not every crank has the same diameter snout. I’d rather the bore be undersized and have to hone it than have the bore be some nominal dimension and not have enough press.

Too much press and the damper can fracture at the key slot. Too little press and the damper is less effective.


Unless you had one where the bore in the damper was too big to start with. That is no bueno. I’ve seen guys use stud and bearing mount Lok-Tite to correct that issue and you can see the fretting between the cap and the block is exponentially worse.