14-02-2018, 12:59 PM
50% of running round here is uphill, with the engine working hard, the remainder is downhill which is where the worn valve guide problem could manifest itself on over-run; although to be fair I haven't noticed any significant blue smoking when re-applying power. I take note of Charles' comment regarding the HT lead and I will swap them over to see if that helps or changes the location of the problem.