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(Topic ID: 206087)

1967 Midway Monster Gun repair and restoration


By dudah

2 years ago



Topic Stats

  • 142 posts
  • 31 Pinsiders participating
  • Latest reply 7 months ago by dudah
  • Topic is favorited by 18 Pinsiders

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    There are 142 posts in this topic. You are on page 3 of 3.
    #101 1 year ago

    Gun(s) stained! MG1 is on the right.

    IMG_20190801_143723 (resized).jpgIMG_20190801_144811 (resized).jpg
    #102 1 year ago

    Fixed! The "Shot control" relay was getting stuck. I took it apart cleaned it up and put it back together again and it works 100% now!

    Aaaand she's for sale!

    Archived after 1 day
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    Other - For Sale
    “Fully working Monster Gun arcade game. Average condition cabinet, very sturdy with no water damage. Average condition backglass, some flaking but mostly there. Backglass is triple ...”
    2019-08-01
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    900

    #103 1 year ago

    Put a video of gameplay up on Youtube, I wasn't satisfied with the ones that were up there.

    Also made a video describing how to adjust the aiming

    #104 1 year ago

    Thanks for the video on the aim adjustment... I need to adjust my Captn Kid...

    Nice job on the resto...

    Steve

    #105 1 year ago

    MG2 is sold! Love listing a game and selling it next day! And having more space in the garage!

    #106 1 year ago

    I’m the MG2 buyer.
    Glad I bought this from you vs pulling one out of a barn somewhere.
    After reading this, there is a ton of stuff that can go wrong with these. I’m glad you looked it over!

    #107 1 year ago

    Translite shipped!
    Says photo gloss but was actually printed on backlit film. Very excited to see how this turns out! Was very satisfied with this company's website, turnaround and pricing thus far.

    #108 1 year ago

    Translite received! Used posterprintshop.com, extremely satisfied with the service and product! The translite looks GREAT!

    Yesterday I also called Steve Young and placed my first order. Hopefully ordered all the missing parts I need to get this going. The stepper unit is missing the springs which has made troubleshooting very difficult thus far.

    IMG_20190807_195304 (resized).jpg
    #109 1 year ago

    Gun is stained and cleared, painted the butt plate and screws. Let everything dry for 3 days.

    IMG_20190807_201125 (resized).jpgIMG_20190807_201139 (resized).jpg
    #110 1 year ago
    Quoted from dudah:

    Gun is stained and cleared, painted the butt plate and screws. Let everything dry for 3 days.[quoted image][quoted image]

    Is that a Remington?

    #111 1 year ago
    Quoted from edward472:

    Is that a Remington?

    Yes. They used surplus Remington stocks from a wide variety of models in the 60's. The buttplate also says "Remington". I know that they came from the factory with "Midway" buttplates but in the 3 rifle games I've gotten none of them had one. I've also been unable to source one.

    #112 1 year ago
    Quoted from dudah:

    Yes. They used surplus Remington stocks from a wide variety of models in the 60's. The buttplate also says "Remington". I know that they came from the factory with "Midway" buttplates but in the 3 rifle games I've gotten none of them had one. I've also been unable to source one.

    Good to know. Thanks. I maybe needing a new stock for my new project game and was wondering what brand they used.

    #113 1 year ago
    Quoted from edward472:

    Good to know. Thanks. I maybe needing a new stock for my new project game and was wondering what brand they used.

    Good luck! The original ones are impossible to find. I saw a video on the Facebook EM rifle page where a guy was machining out the center of another rifle stock to make it fit.

    #114 1 year ago

    Good news! Spent some time servicing the reel assembly.
    Freed up two stuck discs that are now working great, and consequently, so does the rest of the game!
    I feel much more confident in my knowledge of the operation of the game (even without the schematic), I still have to hook up some more wiring (coin door, recoil mech) but feel game operation is nearly there.

    Took a look at the gun and will need to make a little part to ensure it mounts well.
    I need to get back to the hackerspace to cut out the translite plastic and now 3D print this rifle part.
    After that it's just a little more reassembly, then finish up getting it working!

    I feel good that I'm near the end, it's VERY frustrating working on multiple projects at a time as each one only makes little progress.
    This certainly has been a challenge on it's own!

    #115 1 year ago

    I've been avoiding figuring out the hardware to mount the rifle.
    I was give a few random screws which was the same size as the thread on the rifle but certainly needed some more.
    I had most, but still had to do a Home Depot run.
    I mis-measured one bolt and the trigger switch needs to be adjusted, but the rifle is very secure.

    I also realized that I was missing a spring on the trigger.
    Got this one and snipped off 1/3 of it and squeezed it in the cavity in the back of the gun.

    IMG_20190815_203926 (resized).jpgIMG_20190815_204518 (resized).jpg

    I also got a new eyehook for the rifle chain.
    Drilled a hole at the end of the barrel and tapped it, screwed in the chain.
    Easily removable if you need to.

    Replaced the bad/empty bulbs and looks great!
    Also replaced the black light which is now turning on!

    I mocked up the translite and also looks great!
    Not much left...

    MVIMG_20190815_211833 (resized).jpgIMG_20190815_211916 (resized).jpgIMG_20190815_211853 (resized).jpg

    #116 1 year ago

    Looking good! Question... did you do anything to the barrel, I know you stripped and re-stained the stock but did you re-blue or re-paint any of the barrels. On my Captn Kid, the barrel looks to be blued and I was gonna use Perma Blue on it and re-stain the stock.

    #117 1 year ago
    Quoted from smohr:

    Looking good! Question... did you do anything to the barrel, I know you stripped and re-stained the stock but did you re-blue or re-paint any of the barrels. On my Captn Kid, the barrel looks to be blued and I was gonna use Perma Blue on it and re-stain the stock.

    Thanks!
    I painted this one with a gloss black rattle can and it turned out great.
    Once I have some more downtime I'm looking to get back to my local hackerspace and learn to sandblast/powdercoat for my Captain Kid.

    #118 1 year ago

    I noticed earlier that the wire for the trigger leaf switch was erratic, maybe a broken conductor.
    Took it out and noticed the solder tab had broken off! The previous owner had a small metal bracket shorted out on what was left of the leaf!
    It also had the coldest nastiest solder joint ever.
    Replaced both!

    IMG_20190822_211301 (resized).jpgIMG_20190822_211255 (resized).jpg

    Putzed around with the aiming for a bit, got it real figured out now.
    Had to make some adjustments on the rifle a bit and then dial it in on the bakelite.
    It was pretty easy to do alone - first I aim at a static target, I hold the rifle with my left hand, then adjust inside with my right hand to get it to line up on the bakelite.

    IMG_20190822_220812 (resized).jpg

    Played a bunch of games and it appears to be working 98%.
    Next step is to reinstall the motor I serviced!

    #119 1 year ago

    Finished putzing around with the motor!
    One of the brush holders cracked so I had to harvest one out of the eBay motor

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    Didn't spin.
    Upon inspecting the schematic, I'm missing the rheostat to control the speed.
    While the holes are there, it's totally missing.
    May buy another, may just throw a small resistor (faster) in there
    Also gotta check if these resistors are anywhere
    Capture (resized).JPG

    #120 1 year ago
    Quoted from dudah:

    One of the brush holders cracked so I had to harvest one out of the eBay motor

    I see "ACME" cast into the motor housing. Watch out for the Road Runner.

    #121 1 year ago

    Diving into more of the electrical tonight....

    There's a few hacks. Namely, there's an extra switch on the "game over" relay that's wired into where something on the "change cycle" would be.
    (comparing to photos I took from MG2)
    Initially threw me off because they used cloth insulated hookup wire, it looked factory
    Printed out some schematics related to the outer target motor and verified some wire/switch connections. Marked up the schematic to trace it down.
    The colors on the cloth wires are VERY faded and dirty, confirmed wires I've been labeling
    The outer target motor can't spin freely. I tried hooking it straight up to power and it barely rotates and takes the inner target assembly with it. Need to take the whole thing apart to clean and lube it.

    I did manage to glue a broken bakelite tonight and got the aiming dialed in.

    #122 1 year ago

    Took out the motor/target tray.
    Desoldered the non-working outer target motor.
    The mechanism was binding up, so took it apart.
    It's actually very simple to do.
    Cleaned up all the scenery, turned out very nice!
    Thinking about triple thicking it, thoughts?

    IMG_20190826_234127 (resized).jpgIMG_20190826_234257 (resized).jpgIMG_20190826_234307 (resized).jpgIMG_20190826_235214 (resized).jpgIMG_20190826_235228 (resized).jpgIMG_20190826_235020 (resized).jpgIMG_20190826_235234 (resized).jpg

    It was clearly filthy! Wiped down the contacts with alcohol, lightly sanded lubed with SuperLube.
    Lightly cleaned the contacts on the target side.
    Started to reassemble...

    Then disaster struck...
    Upon disassembling, I noticed some metal shards coming out of the shaft from the inner targets where it meets the base outer targets.
    Upon reassembling, I can't get it to go back in! The shaft won't center properly preventing a tight collar from going on.
    Further examination led to a roll pin that was hit too far into the tube on the outer target base! It had been grinding down on the shaft for a while!
    I tried lining the groove up with the roll pin and still can't get it.
    Thoughts on how to fix?
    I tried putting the flat and sharp end of a flathead in there and whacking it to no luck.
    It's at least 3 inches in there. Maybe find a long dremel type circular sanding disk?
    Maybe heat it up with a torch first?
    The other thought is to sand down the shaft where the groove is more.
    2 steps forward, 1 step backwards....

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    #123 1 year ago

    After some contemplation, I decided to go out to the garage and try the roll pin again.
    A series of screwdrivers, and long sockets getting whacked with the hammer I set it back just a millimeter or two - enough to get in the center shaft!
    I pulled the outer target motor and it worked, but needed a little tightening and some spacers to get it just right.
    I put everything back together and tested it and it worked great!!!!
    Played a game and everything seems to be working!!!

    The outer target motor is VERY fast! I ordered some new 10W ceramic resistors (200 ohm, 75 and 75 ohms). Very strange, but the outer target motor resistors get mounted on the inner target motor frame.

    Side note - I FOUND THE SCHEMATIC
    I moved about 18 months ago into my first home so it's not like I have a mess of a house.
    I pride myself on being very organized so it KILLED ME that I couldn't find it.
    Despite the few hours I spent turning my work area upside down, I managed to find it tucked away in my closet with some papers from my house closing.
    Not sure how it ended up there, but thrilled I found it!

    Dare I say I'm in the home stretch.
    Things left to do:
    -Minor paint touchups
    -Replace the fuse block
    -There's one stray wire on the target assembly. Gotta run a splice into the jones plug.
    -Put a lock in the lower back door and put in some brackets to secure it
    -Laser cut the new plexi for the translite
    -Install a credit button in the coin reject hole. While I have the coin mech, the plate it mounts to with the coin reject button is missing. Not worth the time and effort to recreate one in my opinion as this will likely be in a home environment forever.
    -Depending on the motor speed I may add back in the rheostat. I measured MG2 and it was 200 ohms.

    1 week later
    #124 1 year ago

    What liquid did you use to clean off the scenery? Just water? It turned out great.

    #125 1 year ago
    Quoted from CastilianFly:

    What liquid did you use to clean off the scenery? Just water? It turned out great.

    Yes, just a lightly damp rag. Moving it regularly so I'm not dragging a dirty rag across it.

    1 week later
    #126 1 year ago

    Fuse block replaced (I ended up not using the connectors)
    Resistors added to the target motor, outer targets are a much more normal speed now!
    Cleaned up the wiring for the recoil solenoid - feels great!
    Sorted through the parts box, wrapped up the old motor parts in case someone ever needs them
    Put on the lock

    Running out of things to do!

    IMG_20190917_155548 (resized).jpg
    #127 1 year ago

    Painted a little stencil I made
    Put in the target door brackets
    Put in the target door lock
    Realized I accidentally rotated the target door - re-drilled the lock spot and patched the incorrect one
    Put the service panel lock on
    Took a paint brush and touched up a little purple, I need to do the same for the base color

    It's not perfect but it's all tidied up!

    Really all that's left is fabricate up a coin mech and cut the translite plastic/mask!
    IMG_20190919_172146 (resized).jpgIMG_20190919_175920 (resized).jpgIMG_20190919_201740 (resized).jpg

    3 months later
    #128 10 months ago

    Been so busy forgot to update this thread!
    Finished the game up:
    Got the plexi for the translite cut and installed
    Made a masking layer for the translite on my vinyl cutter
    Skipped the coin mech and installed a credit button (thanks, AliBaba)
    Made a backup of the schematic
    Tidied everything up and vacuumed out the inside

    And she's now for sale!

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    2 weeks later
    #129 10 months ago

    Might as well keep this going. Picked up another rough project from Spacemanratso09 this week!

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    2 weeks later
    #130 9 months ago

    How does the lid open on the rifle gun to service the bottom side come off?

    #131 9 months ago

    1964 Midway Rifle Champ gun arcade game how can you service the bottom side of the rifle game. Thanks

    #132 9 months ago
    Quoted from Twventure:

    1964 Midway Rifle Champ gun arcade game how can you service the bottom side of the rifle game. Thanks

    Looking at pictures it doesn't appear to have the side access panel.
    You should be able to access everything through the coin door.

    4 weeks later
    #133 8 months ago

    After an initial inspection, I noticed a couple relays has their contact arms blown out and some ding dong put foil on there paired with some poor soldering.
    I seized a game being parted out on eBay and got a few relays for parts.
    This past weekend I did a bunch to get it going/make it safe:
    New line cord
    Replaced all fuse blocks
    Replaced troublesome relays
    Installing some springs on the stepper

    Also glued back together the rifle that was in 3 parts. It will require some patching and sanding to make it decent.
    Harvested a butt plate/screws off another parts rifle I have.
    I have a barrel powder coated and ready to go.

    Plugging in the game, it starts right away despite the game over relay being locked in.
    Inner target motor is spinning all the time, shot control relay is locked on.
    Someone shorted out the trigger switch wiring for some reason. The jones plug that the rifle plugs into is all hacked up.

    Still a long way to go...
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    #134 8 months ago

    Dudah I enjoy reading your posts and watching your videos for Monster Gun. They are very helpful as I start to figure out the issues with my Monster Gun. Mine starts up slowly and resets to 000 and then I can shoot once, but then it takes about 15 seconds before it allows me to shoot again. Also the large wheel back targets are not moving so will probably remove the RAE motor to check it out. (First will check the relays and if power getting to the motor) My Captain Kid is mostly working now except the gun recoil and the Flag 2 going up is working intermittently. Hope to check it out this weekend.

    #135 8 months ago
    Quoted from Javelinjohn:

    Dudah I enjoy reading your posts and watching your videos for Monster Gun. They are very helpful as I start to figure out the issues with my Monster Gun. Mine starts up slowly and resets to 000 and then I can shoot once, but then it takes about 15 seconds before it allows me to shoot again. Also the large wheel back targets are not moving so will probably remove the RAE motor to check it out. (First will check the relays and if power getting to the motor) My Captain Kid is mostly working now except the gun recoil and the Flag 2 going up is working intermittently. Hope to check it out this weekend.

    You should DEFINITELY remove the RAE motor. I just inspected mine on MG3 yesterday and it was all seized up, I'm very lucky it didn't burn out.
    Took it apart (taking lots of pictures), removed the grease with q-tips, then cleaned it out with brake cleaner. The old grease was fairly hard! I was able to scrape it loose with a toothpick.

    DSCN5238 (resized).JPG

    The motor was spinning, but the gearbox was seized up.
    It should move fairly easily in both directions.
    I had to put a couple drops of 3-in-1 oil on the top/bottom end of the vertical shaft on the housing and let those penetrate to loosen it up.
    Also, one end cap on the side of the gearbox has an adjustment screw to calibrate the amount of horizontal play in the horizontal worm gear.
    I had to tighten mine up a bit.
    Filled the gearbox with SuperLube and it works great now!

    You can see the corrosion on the vertical shaft here DSCN5233 (resized).JPG

    I'll add one more dumb thing about this motor - if you look at the schematic, there's always power on it. They have "warming resistors" to keep power on the motor (even during game over) so it can spin up faster than at a cold start. It's amazing that these motors survive this condition!

    #136 8 months ago

    This artwork is missing on 2/3 of my MG's.
    I don't want to remove it to scan it but, here's a pretty good copy

    DSCN5250 (resized).JPGDSCN5251 (resized).JPG
    #137 8 months ago

    More questions for Dudah. I took my motor drive apart and there was the blob! Yes it was the same scary black grease looking up at me that you have shown in a few posts. Did clean it all out but I noticed when I turn the large gear by hand it only seems to want to go one way. Does not have any grease in it at the moment but did buy some Super Lube the other day. I went to Eurton electric but no luck with brush # 296. I see others on Ebay and more at http://graphitestore.com. Will need to try to measure the hole when I take the motor apart unless you know the measurements. One side seems to have all the springs (photo attached) but the other side only has 1 spring and no sign of a brush. Also I did take the gun stock off just to see what is up there! I see one large screw, is that where the switch is located?

    IMG_4721 (resized).JPGIMG_4728 (resized).JPGIMG_4742 (resized).JPGIMG_4732 (resized).JPG
    #138 8 months ago
    Quoted from Javelinjohn:

    More questions for Dudah. I took my motor drive apart and there was the blob! Yes it was the same scary black grease looking up at me that you have shown in a few posts. Did clean it all out but I noticed when I turn the large gear by hand it only seems to want to go one way. Does not have any grease in it at the moment but did buy some Super Lube the other day. I went to Eurton electric but no luck with brush # 296. I see others on Ebay and more at http://graphitestore.com. Will need to try to measure the hole when I take the motor apart unless you know the measurements. One side seems to have all the springs (photo attached) but the other side only has 1 spring and no sign of a brush. Also I did take the gun stock off just to see what is up there! I see one large screw, is that where the switch is located?[quoted image][quoted image][quoted image][quoted image]

    Very nice!!!
    When I was doing the motor at the beginning of this thread I got a roll pin removal kit and disassembled the gearbox assembly to clean and relube it even better.
    Check to make sure the vertical shaft (with the gear attached) isn't binding in the housing, I squirted some oil in there to loosen it up.

    I'm pretty sure the brushes are a universal part. They have a slight curve in the brush, make sure when you insert it the curve bends around the shaft. Be sure the motor is spinning freely before reattaching the gearbox.

    1 week later
    #139 8 months ago
    Quoted from Javelinjohn:

    More questions for Dudah. I took my motor drive apart and there was the blob! Yes it was the same scary black grease looking up at me that you have shown in a few posts. Did clean it all out but I noticed when I turn the large gear by hand it only seems to want to go one way. Does not have any grease in it at the moment but did buy some Super Lube the other day. I went to Eurton electric but no luck with brush # 296. I see others on Ebay and more at http://graphitestore.com. Will need to try to measure the hole when I take the motor apart unless you know the measurements. One side seems to have all the springs (photo attached) but the other side only has 1 spring and no sign of a brush. Also I did take the gun stock off just to see what is up there! I see one large screw, is that where the switch is located?[quoted image][quoted image][quoted image][quoted image]

    if you want more gear box inspiration, those pictures reminds me of this vide:

    2 weeks later
    #140 7 months ago

    Scanned and cleaned up the little side pieces of scenery. I'll get these printed for MG3 and sent them to the buyer of MG2.

    mgside 001 (resized).jpgleft merged (resized).jpgright merged (resized).jpg
    #141 7 months ago

    Dudah

    Midway collector. I don’t know how I got so attached to them. Have a SAMI, Sea Raider, Jokerball, Cobra Shuffle Alley. Had a Panzer but sold it to a friend of mine that has a collection.

    Currently restoring my basket case ground up restoration HH for the family arcade which I should have wrapped up in a couple weeks.

    Looking for an MG. Definitely interested in adding one to my collection.

    Enjoying watching you walk through your restoration process of MG’s.

    Keep up the great work!

    OHEMIO

    1 week later
    #142 7 months ago

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