Over the past week or so, i noticed a valve starting to tick louder than the rest and a perfect cylinder miss. I've narrowed it down to cyl#2. starting to wonder if i have a burnt valve...but it could also be a dirty/clogged injector as the little filter screens that go in the injector were lost during the rebuild a long time ago thanks to a drunk buddy. How would one go about figuring out if the fuel filters are working correctly? I can only think to take them to an injection shop to be tested. Is burnt exhaust valves a fairly common issue on our a-series? If i can locate my gap gauges, i'm going to try setting the correct valve lash again and see if this is the culprit. Could be something as simple as that. I will add too, my vacuum gauge, reads around 24 Hg/in at idle, but occasionally the needle will rhythmically move 2 Hg/in or so constantly. Between WOT and Idle, you can see the rhythmic moving a little better. I have a video to better explain visually what i'm talking about. Ignore the FP gauge. FPR is correctly set now and it still does the exact same thing. No difference.
Video Link----> Rhythmic miss in my 86 3geez - YouTube
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