Haunted House upkicker has become weak

(Topic ID: 201068)

Haunted House upkicker has become weak


By mwelliott99

9 months ago



Topic Stats

  • 5 posts
  • 3 Pinsiders participating
  • Latest reply 4 months ago by CNKay
  • No one calls this topic a favorite

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#1 9 months ago

A few weeks ago I replaced the coil for the vuk (from lower playfield to main) to a new A4893 and this shot the ball out with tremendous power. But despite only a few games (I’m still restoring/cleaning the machine) it seems to have lost power and now only kicks the ball a few inches up the tube.

I’ve read that there could be a grounding issue? I’m a novice at this stuff - any ideas?

Thanks

#2 8 months ago

Look it up on pinwiki. Seems to be a common problem. I am pretty sure I saw a video of clay replacing with a pop bumper driver board and a different coil? If I find the improvement mod I'll post it here.

You may want to ask cfh himself it may be on his pinball ninja webzine.

#3 8 months ago

Make sure the tube is aligned to receive a nice clean shot from the vuk, there is some movement in it for adjustment

#4 8 months ago

Thanks. I know there is a something you can do with a pop bumper board but I don’t think it makes the up kicker more powerful, just saves coil from burning out?

4 months later
#5 4 months ago

Just curious if you ever fixed or figured out your weak upkick issue.

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