sluggish pop bumpers

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Archived from groups: rec.games.pinball (More info?)

ive got a sluggish pop bumper. i'm pretty sure ive adjusted it
correctly, it the same as the two that really kick out the ball. is
there a definitive way to diagnose a problem ? contacts are clean, coil
doent look burnt. i put in a new sleeve, and the brackets arent
magnetized. does an ohm test tell the tale? should i unwrap some wire
from the coil ? as always, thanks

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Archived from groups: rec.games.pinball (More info?)

Be sure your contacts are clean as well.
check to make sure the stinger is in the middle of the spoon.
Definitely check for rubbing/wear/binding between the armature and the
mounting bracket.

Jer

"mike hooker" <mhooker@optonline.net> wrote in message
news:cY9Pe.149$NA5.27312@news.uswest.net...
> ive got a sluggish pop bumper. i'm pretty sure ive adjusted it
> correctly, it the same as the two that really kick out the ball. is
> there a definitive way to diagnose a problem ? contacts are clean, coil
> doent look burnt. i put in a new sleeve, and the brackets arent
> magnetized. does an ohm test tell the tale? should i unwrap some wire
> from the coil ? as always, thanks
>
> --
> Sent via Gamer Newsgroups
> http://www.gamernewsgroups.com
 
Archived from groups: rec.games.pinball (More info?)

If you move the coil manualy (by hand) does it move freely without
binding? Do the ring rods rub ont he wood while moving?

Just an idea....Please keep us posted on what you find!

Have fun, Karl.
 
Archived from groups: rec.games.pinball (More info?)

While you had the assembly apart to replace the nylon coil sleeve, did
you polish the plunger? I use Brasso on the plungers and it works great.
 
Archived from groups: rec.games.pinball (More info?)

Ken Layton wrote:
did
> you polish the plunger? I use Brasso on the plungers and it works great.

Another idea, you could use a polishing wheel on a (grinder) motor with
"medium" rouge and give it a quick finish with jewlers "fine" rouge. It
will look shiney and be smooth as glass. Brasso, as good as it is, will
really just do a good cleaning but not actualy smoothing out the
surface like the (cloth) wheel. I even do it with brand new plungers. I
say this with all due respect Ken, GodSpeed sir.

Have fun, Karl.
 
Archived from groups: rec.games.pinball (More info?)

make sure the coil is not alittle loose also. Grab it and see if you
can move it alittle. If you can, tighten it down...

Grojohn
 
Archived from groups: rec.games.pinball (More info?)

In this game ('74 Wms Lucky Ace) all pop and sling coils should be DC
(orange wrapper) and should be the same for all 3 bumpers.

So they all share the same power supply (DC voltage from rectifier). If all
3 were weak, I'd suspect a failed rectifier or bad contact in the Game Over
relay.

With just 1 being weak, I'd suspect a bad switch under the pop bumper
skirt/spoon. This is the most common cause- either dirty, misadjusted (too
wide of gap), or pitted/worn switch.

You could try a few things to further diagnose/narrow-down:
- Swap coils with another bumper.
- Swap switch stacks with another bumper.

See if anything changes.

I don't believe these bumpers are controlled by individual relays (as they
were in the 1960's on Wms games), so bad contacts in a relay somewhere
shouldn't be the problem. If I remember right, these bumpers will have 2
sets of contacts- one that activates the bumper, and another (activated by
the bumper as the coil pulls in) which fires the 10, or 100 point relay-
which awards points and rings the chime- something like that.

So only switch in the circuit that could be bad must be the one directly
under the bumper (detector switch). I'd focus on that unless there are any
other contacts in that coil's individual circuit.

Ray J.
--
Action Pinball & Amusement, LLC
Salt Lake City, Utah USA
Web: www.actionpinball.com

We're serious about pinball. Anything else is just for fun!



"mike hooker" <mhooker@optonline.net> wrote in message
news:cY9Pe.149$NA5.27312@news.uswest.net...
> ive got a sluggish pop bumper. i'm pretty sure ive adjusted it
> correctly, it the same as the two that really kick out the ball. is
> there a definitive way to diagnose a problem ? contacts are clean, coil
> doent look burnt. i put in a new sleeve, and the brackets arent
> magnetized. does an ohm test tell the tale? should i unwrap some wire
> from the coil ? as always, thanks
>
> --
> Sent via Gamer Newsgroups
> http://www.gamernewsgroups.com
 
Archived from groups: rec.games.pinball (More info?)

Sometimes the rods rub on the playfield wood if they get just slightly bent
one way or another. Check to see that it slides freely up and down in the
holes too.

Marvin G.
EM Pinball, And Nothing But!
http://mysite.verizon.net/~woodrails




On 8/24/05 9:23 PM, in article cY9Pe.149$NA5.27312@news.uswest.net, "mike
hooker" <mhooker@optonline.net> wrote:

> ive got a sluggish pop bumper. i'm pretty sure ive adjusted it
> correctly, it the same as the two that really kick out the ball. is
> there a definitive way to diagnose a problem ? contacts are clean, coil
> doent look burnt. i put in a new sleeve, and the brackets arent
> magnetized. does an ohm test tell the tale? should i unwrap some wire
> from the coil ? as always, thanks
>
> --
> Sent via Gamer Newsgroups
> http://www.gamernewsgroups.com
 
Archived from groups: rec.games.pinball (More info?)

hi, the pop bumper is fixed, its powerful now. here's what i did, and it
worked. the first thing i did was make sure the stinger was centered in
the spoon. it was a little off, and i loosened the stack screws and
shifted the stack a bit and tightened them. the second thing i did was
adjust the spoon so it has a decent amount of tension against the
stinger. the third thing, and maybe most important, i adjusted the point
gap very close, so the ball just touching the skirt set it off. thats
what seemed to help most. i adjusted the gap a bit wide first, under the
theory the the ball would be well under the popper before in activated,
and would kick it out harder. i guess that theory was flawed, it kicks
much harder the way it is now. it that the experience of others out
there. my other williams has a bumper that is a bit less powerful than
the others, i'm going to try it out there too. thanks

--
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Archived from groups: rec.games.pinball (More info?)

hi, i tried setting the pinnt gap very close on my other williams E/M
and great results. 2 of the 5 bumpers were very lazy, and now they are
on fire. i hope others can benefit from this. thanks

--
Sent via Gamer Newsgroups
http://www.gamernewsgroups.com
 
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