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(Topic ID: 256587)

Flipper Setscrew

By sped372

4 years ago

Topic Heartbeat

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16 posts
9 Pinsiders participating
Latest reply 4 years ago by KenLayton
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Bank Shot Gottlieb, 1976

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#1 4 years ago

SPD

sped372

Pinside member

Waunakee, WI

5y 35,150 100 6 8

I'm in the process of fixing a couple issues on a Gottlieb Bank Shot. The subject of this post involves a sticky left flipper.

I know it's mechanical, not electrical. I wanted to first disassemble everything before ordering new parts... I think it might be the bushing though the playfield but wanted to check it all out first so I can get a full order list together.

Someone that owned the machine before me must have sheared off one of the setscrews on the flipper crank lever. Any advice? Attempting to drill the screw out seems risky at best. I don't really want to just destroy everything by cutting (Dremel) through the main shaft either...

Anyone ever dealt with something like this?
IMG_20191129_161006444 (resized).jpg

#2 4 years ago

???

phil-lee

Pinside member

8y 91,550 4,213

Don't waste your time trying to save that pawl, order all new flipper rebuild kit from PBR including their new pawls.
I have tried to save money on a flipper rebuild and it doesn't work, you want them right.
Drill in the center of the sheared head (use a punch to center) just deep enough to loosen off the shaft.

#3 4 years ago

MSC

D-Gottlieb

Pinside member

8y 55,800 1,986

Ditto this. Get new parts.

#4 4 years ago

CJM

EM-PINMAN

Pinside member

11y 111K 5,311

New parts, cut the shaft.

#5 4 years ago

???

KenLayton

In Memoriam

Olympia, WA

12y 83,400 5,965

I don't think that particular flipper pawl is available any more.

Whenever I have encountered the sheared off screw in those pawls, I've had to cut the shaft and through the bushing too. Then order all new parts where available.

#6 4 years ago

???

dgAmpGuy

Pinside+ Frequent

5y 54,400 568 37

I’ve successfully rescued 2 by using a drill and a screw extractor (ez-out). Use a punch to get a good center point, then a small bit, then the size for the extractor. I’ve got a tool that I use for guitar work that helps me figure out what the thread is, then I get another screw that works.

Dave

#7 4 years ago

SPD

sped372

Pinside member

Waunakee, WI

5y 35,150 100 6 8

Ok I might check with PB Resource to verify which parts are available before attempting anything. I don't have an easy-out that small but I suppose I could order one.

Those that have cut the main shaft, how? Dremel?

#8 4 years ago

TOM

RustyRazor

Inactive member

Guelph, ON

4y 23,650 45 8

If your going to consider cutting things.. I would attempt go old school, center punch and drill out the bolt. Then drill slightly larger to clean things up and retap the hole for an appropriate larger bolt.

#9 4 years ago

SPD

sped372

Pinside member

Waunakee, WI

5y 35,150 100 6 8

Quick trip to the hardware store for a smaller extractor and... Success! Thanks all.

IMG_20191130_084205731 (resized).jpg

IMG_20191130_084547513 (resized).jpg

#10 4 years ago

TOM

RustyRazor

Inactive member

Guelph, ON

4y 23,650 45 8

Nice.. I haven't seen extractors that small before in my small town, maybe I have to go to the big city for those. Will keep in mind the next time I have a problem like that.

#11 4 years ago

SPD

sped372

Pinside member

Waunakee, WI

5y 35,150 100 6 8

Yeah I was surprised but there was a decent selection at ACE. I bought a fresh center punch too, thankfully all went well. A bit nerve wracking drilling into an area with NLA parts.

#12 4 years ago

GRY

generalgman

Pinside member

12y 52,050 378

I bought this Snap On extractor set years ago. Has left hand drill bits so as you are drilling it sometimes backs the broken part out for you. Glad you had success.

8E8E5366-A195-46DE-A453-333A2DFCEADD (resized).png

#13 4 years ago

???

phil-lee

Pinside member

8y 91,550 4,213

Pretty cool you got it out. I will endorse the improved pawls Pinball Resource sells, put them on all the machines I repair, Williams and Gottlieb.
Nothing more frustrating then a flipper shaft slipping after adjustment.

#14 4 years ago

DBS

Skidave

Pinside member

6y 63,550 1,286 9

Good job! That is a job that would have to be coffee free for me!

#15 4 years ago

???

dgAmpGuy

Pinside+ Frequent

5y 54,400 568 37

OP
Quoted from sped372:
Quick trip to the hardware store for a smaller extractor and... Success! Thanks all.[quoted image][quoted image]

Good job!
I was gonna say try the local hardware store for extractors, but you already figured that out

Thanks generalgman for the pointer to snap on. That looks like a nice set.

Dave

#16 4 years ago

???

KenLayton

In Memoriam

Olympia, WA

12y 83,400 5,965

Don't reuse the other screw that was still good. The head will shear off if trying to reuse it.

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