(Topic ID: 18292)

VID's Guide to Upgrading/Rebuilding Flippers

By vid1900

11 years ago


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Topic index (key posts)

15 key posts have been marked in this topic, showing the first 10 items.

Display key post list sorted by: Post date | Keypost summary | User name

Post #6 Get the right EOS switch Posted by vid1900 (11 years ago)

Post #8 Make System 11 Flippers Feel Tight Like Fliptronic Posted by vid1900 (11 years ago)

Post #88 Replace Old Series Coils With New Parallel Coils Posted by vid1900 (11 years ago)

Post #140 Udate Old Solid State Flippers Into Fliptronic Style Posted by vid1900 (10 years ago)

Post #292 List of games with longer/shorter flipper travel Posted by vid1900 (10 years ago)

Post #294 Rebuilding 1967-1979 Flippers Posted by vid1900 (10 years ago)

Post #390 Coil stop differences between system 11 and Fliptronic Posted by vid1900 (10 years ago)

Post #520 Rebuilding Bally Linear Flippers Posted by vid1900 (9 years ago)


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#2140 5 years ago

Question about flipper coil stop sizes vs flipper travel and use for right games.
Looking at PBL site shows 4 different coil stops for Williams.
Looking for info on what stop is what size and amount of flipper travel.
#A-8143 (Stop size is ??) = EM games and SS games from 1969 to 1979 ??
#A-10821 (Stop core size 6mm or 0.236) = 1980 to 1987 ??
#A-12111 (stop core size is 7 mm or 0.275) = Used on Williams/Bally games from 02/1988 to 04/1993.
#A-12390 (stop size is 8mm or 0.314) = Used on all Williams/Bally games from 08/1993 to 06/1999.
I'm assuming A-12390 has the longest stop so gives it the shortest flipper travel.

I am upgrading several older Williams system 4 to 7 games.
Ex: Gorgar, you would use stop #???? to keep original flipper travel. Or Black Knight, What stop should I use.

#2143 5 years ago
Quoted from ajfclark:

PBR lists heights for the different stops on the detailed breakdowns of the flipper rebuild kits. eg. http://www.pbresource.com/KT-WFLIP05.html
A10821 protrudes 0.33" into sleeve
A12111 protrudes 0.37" into sleeve
A12390 protrudes 0.42" into sleeve
There's some other notes about flipper mechs around that era: http://www.pbresource.com/rebuildkit.html#baseplate

A comparison from PBR and Marco.
PBR
A10821 protrudes 0.33" into sleeve
A12111 protrudes 0.37" into sleeve
A12390 protrudes 0.42" into sleeve

Marco
A-10821 Core height from bracket face is 6 mm or 0.236”
A-12111 Core height from bracket face is 7 mm or 0.275”
A-12390 Core height from bracket face is 8 mm or 0.314”

#2147 5 years ago
Quoted from zacaj:

Also important is the length of the plunger, which I wish I had info on, but I can't even trust stores to send me the right plunger matching their picture, let alone be sure they're reproduced matching original specs...

So, there are different size plungers also? And I'm assuming since different travel lengths each one uses a different link also?

#2149 5 years ago
Quoted from zacaj:

I'm not sure about earlier williams but Pinball 2000 used different length plungers iirc. The unsurety is what concerns me.

I think you are right that only Pinball 2000 used the different size plungers.
So looks like the following for matching games to original flipper travel when converting over to new style.
I would use:
A-10821 coil stop for System 3 to 7
A-12111 coil stop for System 9 to 11

Last concern would be the new vs old style links. I'm guessing I need the old style with use of A-10821 since it has the longest travel.

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