lpr spikes to 250 when aired up

[nevets11_2003]

When I air up my quest the lpr will spike up to around 250 psi if I do not reset the reg. This isn't normal is it? Anyone know why its doing this?

[The EastCoast Kid]

did your bolt shoot forward? you need to replace your rear oring and probably the middle urithane orings. also check if your bolt is cracked. i had the same problem except my bolt shot forward and my lpr shot up to 250-300

[nevets11_2003]

no the bolt doesnt shoot forward, pretty sure it isnt cracked. What oring do you mean by "rear" oring?

[HarryBalzak]

The rear of the bolt I assume

[Grapepress]

Had same issue upon receipt of my gun(used). Talked with Rich at FEP and was able to fix it over the phone. Wound up being O-rings on the bolt.


LOTS of lovin with the Lube, and replace the orings on the bolt itself, mine was fixed with the middle oring only.

[evileric77]

Addressed here in a nice visual:
http://www.pbnation.com/showthread.php?p=25194476#post25194476

Those are the rings EastCoastKid is talking about. You probably need to only change the #17 oring in the middle (labeled 1 in the photo).

[KungFooGrip!]

My gun did a very similar thing when i got it brand new from Action Village.

It turned out being a bad valve core in the LPR itself, and unfortunetely, I had to send it to FEP to get it fixed. Luckily, FEP is awesome when it comes to customer service. I had my gat back in a week, ripping.

Hopefully you dont have to send it back, but if you do; it is worth the wait :)

[nevets11_2003]

My gun did a very similar thing when i got it brand new from Action Village.

It turned out being a bad valve core in the LPR itself, and unfortunetely, I had to send it to FEP to get it fixed. Luckily, FEP is awesome when it comes to customer service. I had my gat back in a week, ripping.

Hopefully you dont have to send it back, but if you do; it is worth the wait :)

My lpr is not creeping, I just got a new lpr valve core last friday.
Also I have changed the middle oring already and will try changing the back one.

[evileric77]

Actually if that back oring on the bolt was leaking it wouldn't cause LPR spike; it would cause pneumatic lockout. LPR spike (as far as o-rings go) could only be attributed to any of 3 o-rings (I would change all 3).

http://img294.imageshack.us/img294/4601/lprspikenm6.jpg

EDIT: The o-rings are, the middle o-ring on the bolt, the 3rd o-ring from the front on the bolt pin, and the 2nd o-ring from the back on the bolt pin.