Hi all - I've had a prior thread on a 1961 40hp Lark... ruled out the flywheel, so I'm re-testing a few things.
[FONT="]Hi all, a couple of updates here. I spent the morning reading some other threads on timing and carbs (and re-reading the service manuals). Really appreciate all your help and advice.[/FONT]
[FONT="]1. Spark: confirmed spark with plug in boot and alligator leads from side electrode to ground.[/FONT]
[FONT="]2. Points: I did see that the #2 point alignment was really sloppy (the rocker side was nice and even, but the common side was too high and also just angled wrong... I could see air space between the "closed" points and the armature plate). I took some 320 sandpaper to the common side but never got happy with it, and when adjusting the height I broke the plastic insulating layer. These are omc parts. I went back and compared that common side point to some old omc (and unused sierra) parts, and it's just no good. Swapped out, replaced, re-gapped, re-timed, and slid in a card dipped in acetone.[/FONT]
[FONT="]3. Timing: I got the timing tool from Richard at classicomctools, to confirm my points were opening at the right time. All was good there, and I used that reference to mark my flywheel (I'm obviously just not seeing /feeling the factory markings, but it doesn't matter anymore because I have nice new sharpie lines now).[/FONT]
[FONT="]Hi all, a couple of updates here. I spent the morning reading some other threads on timing and carbs (and re-reading the service manuals). Really appreciate all your help and advice.[/FONT]
[FONT="]1. Spark: confirmed spark with plug in boot and alligator leads from side electrode to ground.[/FONT]
[FONT="]2. Points: I did see that the #2 point alignment was really sloppy (the rocker side was nice and even, but the common side was too high and also just angled wrong... I could see air space between the "closed" points and the armature plate). I took some 320 sandpaper to the common side but never got happy with it, and when adjusting the height I broke the plastic insulating layer. These are omc parts. I went back and compared that common side point to some old omc (and unused sierra) parts, and it's just no good. Swapped out, replaced, re-gapped, re-timed, and slid in a card dipped in acetone.[/FONT]
[FONT="]3. Timing: I got the timing tool from Richard at classicomctools, to confirm my points were opening at the right time. All was good there, and I used that reference to mark my flywheel (I'm obviously just not seeing /feeling the factory markings, but it doesn't matter anymore because I have nice new sharpie lines now).[/FONT]