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Old 07-06-2007, 12:46 PM #1
jemaliahz
 
 
Join Date: May 2007
ACI F4 Illustrator

Hello,

I got F4 Illustrator from my friend. Does anyone knows for sure what are o-rings sizes for bolt? 015 seems to be close but is it 016 (i don't have any right now to test)?

Help needed to bring classics to live

-J-
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Old 07-06-2007, 10:04 PM #2
Big_Mac
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yes, the bolt o-rings are 015. Get the poly not the nitrile rubber ones.
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Old 07-07-2007, 08:31 AM #3
jemaliahz
 
 
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Yes, I got it working somehow now, but I still got problem: Gun works fine with Co2 but if I try to use HPA it fires like 100 times in a row. Any ideas why it does so? Too low pressure? How Do i adjust it?

Why poly o-rings?

-J-
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Old 07-07-2007, 11:04 AM #4
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there is a difference between HPA and CO2. Are you sure you don't have a low pressure HPA tank? F4's don't like to run below 500psi or so. They are designed for CO2 so you won't hurt the marker if you stay with it. Your velocity adjustment has to do with the recock as well as velocity. If you pull the cocking lever back it will stop the 'farting' so you don't waste air. If you are using a high pressure (800 - 850psi) HPA tank you will be better off...though you might still have to mess with your ram spring if you can't get it to recock properly. Did you have a ball in it at the time? That also makes a difference. The ball helps give backpressure to recock the hammer.

Polyurethane o-rings have a higher durometer (hardness) and will last longer. The black nitrile o-rings will not live very long.
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Old 07-07-2007, 12:18 PM #5
jemaliahz
 
 
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Thank you for information. I got High pressure HPA tank. Should get 800psi out from it. I haven't tried with it with ball - just firing empty. SHould try with balls.

I
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Old 07-07-2007, 11:48 PM #6
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twinings plays in the PSP
twinings plays in the APPA D4 division
If your velocity adjuster is turned in too far, it might have trouble recocking.
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Old 07-08-2007, 11:55 AM #7
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^^ definitely!! Try it with paint...
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