I now have 1,000 miles since the valve lash adj. No problems, plus gas mileage seems to be slightly better. Spoke with a Triumph rep (Peter) and he had one idea, he thought it might be shims or buckets settling/seating. He felt since I've gone 700 miles w/o a problem then let well enough alone. I'd bet a mechanic who has a lot of experience with these bonnie motors might know exactly what the noise was.
I'd re-classify the noise as a 'clattering' sound more than hammering.
Any how, when I reach the next interval at 24K, I'll try and find this forum subject and update it at that point to report what things up top look like.
running sweet and strong,
jph
