@50mech Interesting.. I will look into rebuilding the carb and see if that helps..
@DJK Do you think valve clearances could cause a misfire like that?
@greg gThank you so much for your detailed post! The points are new and I tried to set them to .020, but they are coming in at more like .024(my bad, I'll fix that). I'm assuming that wouldn't cause an issue though? Spark plugs are also new as well. I will look into doing a wet/dry compression check. Vacuum is steady at 21 inches except when is sputters, then the vacuum needle drops. I have been running it a lot recently and have found it difficult to get the temp above 170(I thought it was supposed to get higher than that?)
@Sniper Yeah! I watched his series too! I even bought a cheap valve cutter off ebay to try to fix up my other engine, but it didn't work very well and the valve guides look like they're shot as well. I would love to go as in-depth as he did, but I don't have the tools. ? Do you guys know if there is a way to replace guides and cut seats without expensive tools?
@dpolloOh ok! Sorry for the misunderstanding. Interesting... The engine number says "PII*20928I*. Which seems like you're right. I don't know exactly how to decode the engine numbers though..
@squirebill @DJK @Sniper @50mech I thought what you guys were saying was interesting so I thought I would take a look at the valve train..
I decided to open the valve covers and take a slow-motion video of the valves to see if I could see anything out of the ordinary. I am no mechanic but I didn't see anything wrong! What I thought was interesting though, was that in the slowmotion video, you can hear the misfire, and occasionally 2 misfires right next to each other. Now, I might be wrong, but because there seemed to be 2 misfires right after each other, too soon to be the same cylinder, my hypothesis is that the misfire is not unique to a specific cylinder but eradically affecting multiple cylinders? Here's the video if you guys want to check it out! (I thought it was pretty cool to watch.)
Anyways, I may be reading into it too much, but would be interested in what you guys think?