coil sleeve replacement for pop-bumpers

Steelhorse

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I'am searching and searching the internet and owners manual and can't find how you replace the pop-bumper coil sleeves. Is it the 2 phillip screws up on the bracket to get to the coil sleeve? Or do you have to disassemble the whole pop-bumper? I can do the flipper coil sleeves with my eyes closed, but the pop-bumpers have me stumped. Thanks in advance
 
What game?

On some machines you can remove the coil stop with two screws and take out the coil. On some machines, you will need to take off the ring, and take off the top bracket since the coil stop is on the mounting bracket. Section 3b of this page tells you how to get them apart:

http://www.pinrepair.com/restore/index3.htm#pop
 
it's a High Speed, and I need to address this as one of my pop-bumpers is sluggish with little to no pop. So correct me please if I'am wrong, it's the 2 screws on the side of the cil bracket that is needed to remove to slide the coil away enough to pull out the old and put a new one in correct? Or do I need to tear the whole assembly off to replace my sleeves? Thanks
 
If you're going to replace the sleeve, I'd replace the plunger, and the springs as well. Might as well do the job right while you have the thing apart. You're probably the first person to replace any of those 24 year old parts...
 
The pop-bumper that is real weak is loose on its bracket, meaning I can move it sliding it up and down some, does it need to be tight fit on it's bracket? The bracket and screws seem tight. Maybe to much play with the mounting of the coil is the culprit to weak pop bumper. Let me know, also when changing out the sleeve is there gonna be parts falling off that I need to be aware of? What can I expect? I really dont feel confident in tackling this, so help build this up so I can. Just want to change out all coil sleeves and clean the spoon and switches.
 
Compare it to the other pop bumpers. I would suspect that you may have more of a problem than just a sleeve...if it's not activating or isn't very sensitive, you need to adjust something, ie switch, spoon, skirt etc..
 
There will be a little play in the assembly. If there is too much play maybe the plunger and or coil stop has become worn/mushroomed.

The pop bumper can be thought of as 2 discrete assemblies. What is above the playfield and what is below. If the ball activates the pop bumper consistently via the skirt, but the downward action is sluggish, then you will want to tackle below the playfield.

Pop bumpers are not hard to rebuild at all, what makes them difficult in some games is their placement. It can require some contortion on your part to get at the right angle for repair.

If you want to rebuild to lower part of the pop bumper (which I highly recommend for maximum action, high speed needs nice fast pops!) you need to do the following.

Loosen and remove the 2 nuts that secure the metal ring to the plunger mechanism. There +SHOULD+ be washers behind the nuts so watch out for those as you are removing the nuts. Now with the nuts removed you'll see that the posts of the metal rod/ring fit into the holes of a metal and a Bakelite yoke. Make note of the positioning of the yokes and how they fit around the metal plunger in the coil. Pull the rod/ring assembly up and through the holes from the top of the playfield, while at the same time holding onto the yokes from underneath. (you will have to remove the pop bumper cap to do this). Inspect the rod/ring assembly for damage.

Many times faulty pop bumper action will be a result of a broken yoke, and most likely the metal one. I would order one of each to be on the safe side.

Now you can remove the coil stop. You shouldn't need to remove the coil bracket that attaches to the playfield or desolder the coil. You can let the coil hang there while you work.

Removing the coil will free the plunger return spring. This part needs to be replaced.

Inspect your plunger, if it has a rough edge on the end that contacts the coil stop then it needs to be replaced or you can file it down if its not too bad.

Inspect your coil stop. If it is not completely flat, or has a indented rough edge to it it should be replaced.

Clean and inspect the spoon and switch. The gap on this switch is important. You want it as close as possible so that the pop activates with glancing blows but not so close that vibrations make the pop fire.

Remove the coil sleeve from the coil and throw it away. Replace with a new fresh one. If you have a lot of resistance when removing the coil sleeve from the coil, your coil could have locked on at some point and may have been damaged.

Now just begin reassembly in the reverse order. It can take some dexterity to get the yokes back around the coil and the rod/ring reattached but its nothing horrible.

Once you see how quick and lively this rebuilt pop bumper is, you'll probably want to do all 3 so order enough parts in advance!

The top side is easy as well, but you will have to replace the lamp socket if you want to replace the skirt spring. I think your problem lies below the playfield so start there and if you want to do the top side, I can post those instructions later.

Good luck!
 
Having big fat fingers really is not an advantage in those tight spots under the playfield, I'll get the wife to help out with her small fingers and hands. Yesterday is when the bumper really started messing up, earlier I had the pf all the way up and was inspecting and checking stuff out with all 3 pop bumpers and I did mess with the switches and spoon and was checking the play of the coil then I lowered the pf and turn the game on to play and I must have touch it out of adjustment. I just cant get my fingers in there good to adjust, just poking and squeezing the switch in order to adjust.
 
Hey thanks! I have seen it before and will be adding it to my cart for purchase. Where to you bend the leaf for adjustment at? front middle, or back? I gonna take a guess and say to bend from the bottom of the leaf, just like I did on my cabinet flipper switches just bent from the bottom. Let me know? Thanks for all your advice and help.
 
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