Thank you both for your replies and advice.
OK. I'll get a gauge and set the timing properly.
I did intend to borrow / buy a gauge, because I'd like to get it spot on, but thought that setting the marks up might be enough to tell me if timing was the main problem.
I'm not sure how critical even half a mm could be or if the margins are wider than this and it's something else?
What I mean is, if timing is out by an imperceptible fraction, could this be the issue?
What I might try, just as a quick test, is to advance and then retard the IP timing slightly to see it the symptoms change.
Last edited by blix99; 03-17-2020 at 12:02 AM.
|