(Topic ID: 169639)

Upgrading Flipper Coils

By Playdium

7 years ago


Topic Heartbeat

Topic Stats

  • 13 posts
  • 7 Pinsiders participating
  • Latest reply 7 years ago by wayner
  • No one calls this topic a favorite

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    #1 7 years ago

    I am curious about the upgraded flipper coils that are available. On a Gottlieb machine with drop targets, I would be concerned about the added power breaking the targets. I have a machine that has the original coils, and I replaced the flipper assemblies as well as the EOS switches. But I wish they had a little bit more power. Yes, the switches are adjusted to open at EOS.

    Any thoughts?

    #2 7 years ago

    You could set the game on high-tap if you haven't already. You didn't mention what game this was, but on some it is supposed to be challenging to get back to the top of the playfield.

    #3 7 years ago

    Yes. Two things I have seen. Clay (CFH) has some good advice on modifying your existing coils at pinrepair.com. Also Vid1900 has an excellent thread on flipper repair/restoration.

    http://www.pinrepair.com/
    http://www.pinrepair.com/em/index3.htm#perform (See part about unwrapping the coil)

    https://pinside.com/pinball/forum/topic/vids-guide-to-upgradingrebuilding-flippers

    Best of luck

    #4 7 years ago

    You may have set the return springs too strong. On a GTB EM flipper, these springs should be set to a very low tension.

    - TimMe

    #5 7 years ago
    Quoted from KerryImming:

    You could set the game on high-tap if you haven't already. You didn't mention what game this was, but on some it is supposed to be challenging to get back to the top of the playfield.

    I did set it for High Tap today and notice a bit of improvement. The voltage difference at the transformer was 2 volts. Does that sound about right?

    #6 7 years ago

    Yep, high tap on the GTB transformer is usually about 2 volts higher than the normal tap.

    - TimMe

    #7 7 years ago
    Quoted from Nevus:

    Yes. Two things I have seen. Clay (CFH) has some good advice on modifying your existing coils at pinrepair.com. Also Vid1900 has an excellent thread on flipper repair/restoration.
    http://www.pinrepair.com/
    http://www.pinrepair.com/em/index3.htm#perform (See part about unwrapping the coil)
    https://pinside.com/pinball/forum/topic/vids-guide-to-upgradingrebuilding-flippers
    Best of luck

    You can't modify flipper coils because they have two windings. Your choices are rebuilding, upping the power of the coils via orange/yellow dot coils, or high tapping the game.

    #8 7 years ago

    I suggest you try some superbands.
    They will get that pinball to the top of the machine more often and are a cheap easy mod.

    #9 7 years ago

    On selected GTB machines pre 1977 I often use orange dot coils from PBR for extra zip to the top. Never had a problem with breakages. On the other hand I find hi tap just provides an unrealistic level of EM play & therefore avoid it.

    #10 7 years ago
    Quoted from wayner:

    On selected GTB machines pre 1977 I often use orange dot coils from PBR for extra zip to the top. Never had a problem with breakages. On the other hand I find hi tap just provides an unrealistic level of EM play & therefore avoid it.

    LOL, well, there's a couple of statements in direct contradiction to each other.

    Wayner, you want the bumpers to play slow but the flippers to fire like a SS game? Interesting. I'd rather the game play fast all the way around or slow all the way around, but not a combination of the two.

    In any case what does an EM truly "play" like. Are we talking woodrails, Williams/Bally games with 50v that can play pretty fast and snappy, Williams games with DC power? There's so much variation that to me it's impossible to really define what an EM "plays" like other than generally it's not as fast as a SS/DMD game, but EMs themselves differed quite a bit in their play.

    #11 7 years ago

    The game plays fine. It was just that the flippers could have used a little more power. (Gottlieb Card Whiz). The High Tap is a perfect setting.
    Thx

    #12 7 years ago
    Quoted from Playdium:

    The High Tap is a perfect setting.

    Glad to hear that worked for you. As TimMe mentioned, check the flipper springs. They should JUST BARELY return the flippers to the at-rest position when the playfield is raised.

    #13 7 years ago
    Quoted from EMsInKC:

    LOL, well, there's a couple of statements in direct contradiction to each other.
    Wayner, you want the bumpers to play slow but the flippers to fire like a SS game? Interesting. I'd rather the game play fast all the way around or slow all the way around, but not a combination of the two.
    In any case what does an EM truly "play" like. Are we talking woodrails, Williams/Bally games with 50v that can play pretty fast and snappy, Williams games with DC power? There's so much variation that to me it's impossible to really define what an EM "plays" like other than generally it's not as fast as a SS/DMD game, but EMs themselves differed quite a bit in their play.

    Ok that was my opinion & you have expressed your opinion. But why do you need to take my opinion apart to express your own!

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