Finally replaced the aftermarket belts on my cruiser with oem. What a difference! I had managed to quiet the aftermarket belts down before by adjustment but I never suspected how bad they were until I actually changed them. Anyway, now I can hear a distinct clicking from the motor that I couldn't hear before. It sounds like valves but is not the usual valve clatter /rattle you hear (e.g., like a diesel) but a more "concentrated" and regular mechanical clicking. It's coming from the valve cover area and I have not heard it in another 80 I have listened to (I went to look at one on for sale on a lot just to hear it running). Now the problem. The Toyota dealers in town want 6 hours plus parts (over $700 before dust settles) to adjust the valves. No one else in town has the SST's to adjust the valves so I am hooped. Before I commit to such an expense, is there an alternate explanation? I took it into a Toyota dealer first thing this am and their "landcruiser" guy (I have met a couple now and this should definitely be in quotes) had never worked on an 80 before, knew zero about the engine, had no clue whether the noise was normal and was not sure if it was valves or not but figured that was a good place to start.