No, not on the main road. If you approach from Bodfari, pass the Pwll Gwyn on your left, you then reach a cross roads. Turn left, but not up the hill to Caerwys. The other left hand one is probably signposted Babell or Rhesycae. The pub was a bit further on, on the left hand side. I think it's a private house now.
If you go to Google Maps and enter Afonwen enlarge it until you see the B5122 which goes to Caerwys. You'll see a little triangle with Bryn Seion Liveries in the middle of it. Now switch to satellite view. The pub was one of the three buildings above the triangle unless it was demolished and these are new.
I think you should still try to check other sources to confirm that this is the one.
Tecwyn.