Not sure.  I spoke with Bob Donalds about this a couple of years ago but
I don't think we came to any conclusions on this.

Ken Wilford
John 3:16
www.vanagain.com

Giasson, Pascal (DNR/MRN) wrote:
> Any thought if the newer Febi design has less of a tendency to bleed
> down?
>
> Pascal
> '84 Westy
>
>
> -----Original Message-----
>
> The Febi lifter changed it's design several years ago.  They now have a
> small disc inside as the check valve.  They also use a much beefier snap
> ring to hold the lifter together.
>
>
> Let me know if I can help you further,
> Ken Wilford
> John 3:16
> www.vanagain.com
>
>