(Topic ID: 209523)

Williams Space Mission Inner Plunger Spring Size

By xbmanx

1 year ago

Topic Stats

  • 4 posts
  • 3 Pinsiders participating
  • Latest reply 1 year ago by xbmanx
  • No one calls this topic a favorite


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#1 1 year ago

Good Day Fine Folks Of Pinside,

I have a Williams Space Mission which is having a hard time with the plunger shooting the ball hard enough to get it to the top of the shooter lane. I figure its just an old worn inner spring. Does anyoner have any clue what size/strength that spring is? I can't figure out which one to order. Thanks in advance!

#2 1 year ago

According to the parts manual at PPS http://www.planetarypinball.com/reference/partsmanuals/WMS_Parts_1977-1978/index.html#/26/ the part number is 10A-148-1

I'm guessing the Marco 10-148-1 is the most likely candidate even though Space Mission isn't listed in the compatibility box. Marco does sell a kit with 10-148- 1-7 in it. http://www.marcospecialties.com/pinball-parts/10-148-XX


Edit: Don't forget to replace the shooter rod sleeve, that can make a big difference. I don't have the part number but Marco can probably tell you if no one here chimes in.

#3 1 year ago

Call Steve at PBR, shipping will be way cheaper for a small thing like this and you will get it quicker. Tell Steve what you need. Barrel spring, shooter spring and shooter sleeve. Replace all three. You may also want to order new "C" clamps because you most likely will destroy the old ones taking them off.

#4 1 year ago

Thanks everyone

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