[handdrawnsquare]

thanks for the reply, i work with glass actually so lapping the faces isn't a problem. but i'm still not sure if i need it. they made the fuel dist to very tight tolerances. i find it amazing that the main plunger doesn't leak. it has free movement very tight so i'm sorta inclined to think that maybe no sealant. i bought a cis system complete for a very low price. it had a frozen plunger which i freed up so i an using that fuel distributor as my guinea pig.

when i track down the o-rings i might try a test assemblage without sealant and pressurize it with compressed air for a leak down test.

will post my results

robert
1975s targa
1968 bsa a50