(Topic ID: 245728)

World Fair-dead style bumpers don’t like hard hits


By phillyfan64

3 months ago



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  • 9 posts
  • 7 Pinsiders participating
  • Latest reply 3 months ago by jrpinball
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#1 3 months ago

The 2 yellow bumpers in my World Fair do not seem to respond on hard hits from the flippers. I replaced both switches with new ones from Pinball Resource. I have them adjusted to about 1/32”. These are the dead style bumpers. There’s no rings on these. Any suggestions on how to make these respond better? The new spoons seem centered. They are just resting on the stems. The flippers were upgraded to the slightly higher orange dot coils. Is that too much power? It really doesn’t seem like it’s too much. Is this just par for the course for an EM?
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#2 3 months ago

I would try them with rings. And is there a score motor sw. involved with them?

#3 3 months ago

Are they always less responsive to hard hits or only when they are lit (where a hit would light the next bumper)?

#4 3 months ago

On my River Boat the dead bumpers are set the same as yours, and register every hit. They're at the top of the playfield where they don't get hit that hard.

Yours are right in the line of fire of the flippers. I'm wondering if with the stronger coils you're getting any air balls that might go over the skirts and bounce off without ever hitting them?

Maybe take the flippers out of the equation and shoot a bunch of balls by hand at them, and see if they register the hit?

Just spitballin' here...

-Paul

#5 3 months ago
Quoted from currieddog:

I would try them with rings

Maybe without the rubber rings a hard shot will send the stem beyond the spoon or somewhere else it shouldn’t go. I just learned that rubber rings go on passive bumpers as I’ve been working on a Flying Chariots. I would definitely put the rubber rings on those bumpers if they aren’t there.

#6 3 months ago

They should have a rubber ring installed on them. Also, the extra power from the hot coils doesn't help. You don't have the machine high-tapped, do you?

#7 3 months ago

The proximity of those bumpers to the flippers make them IMO easy meat for damage if you are using orange dot coils. I have standard coils on my WF and they work fine. Suggest returning to standard coils.

#8 3 months ago

Thanks for the suggestions. To answer your questions. The machine is not high tapped. The only upgrade is the orange dot flipper coils. They do have rubber rings on them. I don’t honestly remember if they worked better with the regular coils but they probably did. They definitely seem to work better when launching the ball by hand so there’s a good chance that the ball is flying too high. I think they are always less responsive to hard hits regardless if they are lit or not. No score motor involved but there is a relay in the back box that I need to look at and make sure the switch is gapped properly. The passive bumpers at the top of the playfield don’t get hit hard and there’s never a problem with those scoring.

#9 3 months ago

The designers didn't just guess at their work. Hot coils are a major departure from the original design, and will introduce issues such as you're seeing. Use original equipment or equivalent if you have operational issues after a modification.

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