Started out the day with this:
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and ended up ordering one of these:
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As I said in my last post, the engine was running inconsistent and continued to consistently be inconsistent. It would start find and come up to a nice idle speed as it warmed up, then idle nice and smooth and rev very freely for awhile. After running about 15 minutes or so, it would start misfiring and drifting. Idle would slowly climb as high as 1500 rpm or drop below 500. Not hunting. More like drifting. It would misfire and run rough and the tach needle bounce all over. So many possibilities for problems, I decided to simplify and pull the dizzy and plug the NOS 050 dizzy I bought 35 years ago. I had to also swap out the coil and grabbed an old beat up one out of the parts bin. Trying to set the static timing, I couldn't figure out why I wasn't getting any voltage until I noticed I had forgotten to plug in the condenser to the coil. I quickly plugged in in the the coil, forgetting that I had rotated this coil 180 from the one I just pulled and plugged the condenser right into the positive side. Of course the points wire glowed red hot and burnt in half.
I then scavenged a crappy set of points and a condenser from a spare dizzy, got the static timing set and cranked the engine. Nothin'. Cranked again, still nothin'. I tried incrementally rotating the dizzy to advance the timing a little at a time. No go. I tested the coil and found the primary winding had too high of resistance, so I swapped in the one other coil I had which tested fine. Still nothin' WTF? Checked and double checked the points gap. Nope. Pulled #1 spark plug. Yeah, there is spark. Well shit. I decided to throw the Pertronix in so back in went the Flamethrower coil. Crank, crank, crank, nothin'. Screw that. I went inside for a break to think on it a bit. Then it hit me. I'll bet I set up the dizzy 180 off.
After relaxing for a bit, I went out and checked. Sure as , I set everything up for TDC on the exhaust stroke. What a dumbass dipshit. Well crap, the Pertronix is already in there, so I reset the timing and wiring for TDC on the COMPRESSION stroke. Crank, crank, VROOM! Well there is a morning I'll never get back. Anyway, I dialed in the carbs again and had it idling steady at ~750-800 rpm and the Tach seems as smooth as I ever remember it. Every now and then I see it drop a note on idle, but otherwise smooth. It revs okay but has a small hesitation coming off of idle. Not as bad as the flat spot of a 009, but a much shorter version of that. It would be drivable, but that isn't good enough. I want that quick response I was getting with the vacuum advance.
To be honest, the stock dizzy I tried has a pretty sketchy history. It was rather flaky all the years I drove this car. It left me and the wife stranded for nearly a full day in McKinney, TX once while my brother and I chased down what turned out to be a thrown centrifugal advance spring. That was fun to figure out. I was hoping a good cleaning and lubrication would restore it to serviceable condition, but given that the Pertronix seems to be working just fine in the 050, I guess not. I'm 99% sure the dizzy I ordered is the exact unit sold as the "Pertronix SVDA" but with conventional points. I already have a Pertronix and they have gotten rather spendy recently, so I'll just swap my module into this $60 dizzy.
In other news, my NOS heater flapper bolt finally arrived all the way from Latvia.
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Now I know how to finish the other bolt that was donated to the cause by @brant when I replate it and the barrel connectors for the cables.
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I also picked up my brand new Mom's Service Cover from Perry Kiel today So happy to have this little beauty.
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Finally, a couple long overdue pics of @mb911 's quiet muffler installed. I can't really say how it sounds yet since I've only run the engine with the engine lid and air box removed. The racket from the engine and carbs is way too loud and I am hopeful once everything is buttoned up, the exhaust note from muffler will be mostly what is heard. I do like the look of heat tempered SS though.
Speaking of air box, I should probably do something about that. I wonder if I could just trim the rain tray to make it fit
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