Pinbot
Williams, 1986You're currently viewing posts by Pinsider KloggMonkey.
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Make sure you have the correct plunger spring, Pinbot uses this blue spring http://www.marcospecialties.com/pinball-parts/10-148-3
NOTE: It looks like spring colors are not consistent, Marcos has blue as the 2nd most powerful, but on PBL its the weakest.
Also make sure you don't have your spiral ramp screwed down too tight, and it is aligned properly.
Quoted from Tanooki:I still strongly believe it lacks some thrust towards the top as it's not begging to go into that 20K spot with much fury if I pull it back all the way. Perhaps that blue spring would be the cure? Either I'm looking at replacing the full assembly or getting that blue spring. I'd rather not get rid of my williams branded chrome plate.
Guide:
Buy this stuff:
Shooter Spring
http://www.marcospecialties.com/pinball-parts/10-148-3
Barrel Spring:
http://www.marcospecialties.com/pinball-parts/10-149
Sleeve:
http://www.marcospecialties.com/pinball-parts/03-7357
E clip: Buy a few for spares
http://www.marcospecialties.com/pinball-parts/20-8712-37
Washers: Need 2, but a few for spares
http://www.marcospecialties.com/pinball-parts/4700-00051-00
Shooter tip:
http://www.marcospecialties.com/pinball-parts/38-1100W
1. Take everything apart. Use the info below.
2. Clean it all, mean green then wash then dry then rubbing alcohol on the metal bits.
3. Replace the parts bought above
4. Put it back together
5. Enjoy.
Info:
http://mirror2.ipdb.org/files/1796/Williams_1986_Pin_bot_Manual.pdf
and
http://www.planetarypinball.com/reference/partsmanuals/WMS_Parts_Blue_16-9064-B/index.html
Quoted from Tanooki:I've bookmarked this in the event I need to go that far with it.
I would go ahead and do it, "restoring" a shooter is very easy compared many things you work on in pinball.
The spring that is in there is old and very well could be the wrong one.
Beware once you fix this up like new you will want to do it to every assembly on the machine, which is a good thing! 
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Pulaski, PA