Quoted from Flynnyfalcon:So I've been flipping through all the old posts in this thread and found a number of possible fixes for my inconsistent shooter but none have helped. Has a definitive fix been noted?
I've tried:
Waxing the shooter lane
Adjusting the ball guide
Adjusting the shooter
Adjusting the auto plunger
Levelling playfield to within an inch of its life
What am I missing? Plunges are consistently inconsistent. Going high, then low, then high etc etc.
I've only owned my Maiden for a couple of months and absolutely love it, but geez the plunge is a let down.
I think I've tried most things, and at this point I do have it working fine, but I don't fully expect it to stay that way and I expect that I'll have to tweak it again in the future. From my experience though I'll say a few things that I hope might help. (And these aren't my original ideas, they are from this thread...)
The ball guide screw is the first thing to look at. Not only making sure it is in the right place, but also that it is tight. When my plunge shot got extremely inconsistent, it was because this screw loosened over time. The last time I had to tighten it I had to use toothpicks/woodglue to get it to grip properly.
More importantly though, as someone else said before, if the guide is completely relying on that screw to be held in place, I think you'll eventually run into problems. The best adjustment I found was to completely remove the rail and adjust it out of the machine. (The adjustment screw plus 2 screws under the level is all that's necessary to get it out, so it isn't as hard as you might initially think). Once it is out of the machine, it is easy to bend it a bit to get it into the "correct" state without completely relying on the adjustment screw to fight the tension. It might take a few iterations of taking it out and putting it in, but I had much more success with this method and it felt more permanent. Plus, it is way easier to file down any burrs at the end when it is out of the machine.
Lastly, I do think swapping out the auto-plunger coil for something slightly more powerful was a nice change. More consistently goes around the whole orbit, and gives you more headroom to fine tune power adjustments in software. Maybe not strictly necessary, but I definitely have no regrets about doing it.
Hope this helps, good luck. No question the most frustrating issue I've had owning an IM