14-09-2017, 08:20 AM
Robert,
The only marking is "PAT AP FOR" on one of the hexagon flats.
Jet markings on the ring closest to the hexagon range from 1 - 6, on the other, 7 - 12.
Index dimple on one of the hexagon flats.
I have had this item for many years, never seen another, nor a compensating jet.
I remember experimenting with it in the early days but do not recollect the results. Rather a tedious exercise at the expense of much fuel!!
Chris
The only marking is "PAT AP FOR" on one of the hexagon flats.
Jet markings on the ring closest to the hexagon range from 1 - 6, on the other, 7 - 12.
Index dimple on one of the hexagon flats.
I have had this item for many years, never seen another, nor a compensating jet.
I remember experimenting with it in the early days but do not recollect the results. Rather a tedious exercise at the expense of much fuel!!
Chris