Have an SA AW 3 speed hub '73 Raleigh. I tried flushing with WD-40 as recommended. Tried a couple of times. Rode bike etc. Drained through filler cap and the usual wheel/spoke mess. Bike is tight. Checked all nuts/bolts. Chain is adjusted so I think I can eliminate the bike frame, fenders, chain guard etc.
Still getting the following;
1. no tick tick tick in second. just an unusual intermittent loud tick that I can't define as rythmic.
2. Very slight tick tick in third with an irregular rattle type sound.
3. Good ratchet sound on coast and all other sounds are eliminated while coasting. Hub is quiet except for the normal ratchet on coast.
4. Hub shifts good and holds the gears.
I am presently draining hub after a ride with the WD-40 and will lube with 10W-30 once it has drained overnite.
All you guys have been helpful in the past, hope someone can put their finger on ithe problem.
P.S. Bottom bracket and pedals feel smooth. The loud tick in second is intermittent and the rattle in 3rd is irregular