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Marq7 trouble


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#1 D.A.M.Baller321

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Posted 26 February 2013 - 08:36 PM

I was trying to set the lpr and I tried loosening the the hot swivel screws. I loosened them too much because burst off the gun. I reinstalled the hot and now all of a sudden my pressure tester is getting a reading from the hpr but not the lpr. What did I break and how can I fix it. Please help.
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#2 andrewthewookie

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Posted 26 February 2013 - 08:39 PM

The "hot" screws? You adjust the LPR by rotating the brass colored collar on the end. What exactly burst off the gun?

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#3 D.A.M.Baller321

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Posted 26 February 2013 - 08:43 PM

I tried adjusting the lpr that way and the needle on my pressure tester didn't budge. The whole inline reg burst off the base that screws into the body. This is my first time I'm tuning a marq and I didn't know that I was unscrewing the set screws on the swivel too much.

Edited by D.A.M.Baller321, 26 February 2013 - 08:47 PM.

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#4 andrewthewookie

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Posted 26 February 2013 - 08:45 PM

Are you referring to the set screws on the top of the high pressure reg that goes into the gun?

Look at the bottom of your grip frame, in front of the trigger guard. Is there a little slot milled in the frame?

This is where you adjust the LPR:
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Edited by andrewthewookie, 26 February 2013 - 08:48 PM.

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#5 D.A.M.Baller321

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Posted 26 February 2013 - 08:52 PM

Yes those screws. And that slot in front of the trigger guard is how I was adjusting the lpr. I know those 2 set screws an the hpr only alow you to twist the macro fitting out of the way so you can access the lpr through that slot without removing the grip frame.

Yes I have that slot.
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#6 andrewthewookie

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Posted 26 February 2013 - 08:54 PM

Ah, ok. Now that we have that out of the way, did you make any adjustments to the LPR collar between when it was working and when it read 0?

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#7 D.A.M.Baller321

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Posted 26 February 2013 - 08:57 PM

When it was getting pressure I was making adjustments and it was changing the pressure.

It didn't start to read 0 until after the hpr flew off its base.
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#8 D.A.M.Baller321

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Posted 27 February 2013 - 07:52 AM

I ordered a 160 psi gauge this morning for the lpr side of the pressure tester. I figure I'll start with that and move on from there. If after that I'm still having problems I'll tear into the gun and see if anything pops out at me. Also the lpr piston oring is the only one in the gun I didn't replace.
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