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Old 03-11-2014, 08:45 AM #1
Spilner22
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Dm14 driving me crazy.

Gun-dm14
Lube-sleek 33
Dwell-18
Psp 12.5
Bolt-polished.
Top hat-polished

Ok guys. I bought this gun used. It had a polished bolt. Gun was it great condition. Shot awesome. But it was kicking really bad one day and fixed that problem thanks to you guys. But now this thing keeps leaking down the barrel. I replace the top hat small oring and it didn't stop the leak. So I replaced the bolt sail oring and it stop the leak. Lube it back up. It shot great then couple pods later it started to leak again and it was the same bolt sail oring. Shot great then it started leaking again. So I took the bolt apart and cleaned all the grease off and started testing the orings for fitment. And it seems like the bolt sail oring (015-BN70) was really loose. And I test fire when I replaced it and it was tight. So I am wondering since the bolt and top hat are polished that it's burning up the lube like its a polishing compound. And just eating those bolt sail orings. So please any info will help. Like maybe getting the bolt anodized. Or just getting a new bolt.
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Old 03-11-2014, 08:59 AM #2
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Front can oring and front top hat oring can cause leaks down the barrel along with the back small oring in the top hat that you already changed
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Old 03-11-2014, 09:11 AM #3
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Polishing removes the 'natural' pits in the metal that would normally retain lube. So your theory is sound.
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Old 03-11-2014, 09:25 AM #4
Spilner22
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Quote:
Originally Posted by g_t06 View Post
Front can oring and front top hat oring can cause leaks down the barrel along with the back small oring in the top hat that you already changed
I replace those also. Buy it always turns out to be the bolt sail oring.
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Old 03-11-2014, 10:15 AM #5
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Another problem could be the polishing of the bolt. It can change tolerances just enough that the seal isn't good enough. Lube will seal it but as soon as it wipes away it'll leak again. Contacting dye is my best advice.
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Old 03-11-2014, 10:48 AM #6
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Just for ****s try turning up your lpr as well as changing the inside orange orings to a dye orange ones. Also if these orings are dye orange ones (017) try picking one that has the smallest interior diameter.

dye machines these bolts to always seal at the detriment of smoothness. Polishing it makes it smoother but now your tolerances to make a seal are much stricter.

so before you do anything

1. Put the lpr back to stock in the manual (its high)
2. Change the 017 orings inside the can and top hat to harder tighter orings


if this fails...

buy a new bolt because the dude before you polished it too much.
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Old 03-11-2014, 10:57 AM #7
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Quote:
Originally Posted by Spilner22 View Post
Gun-dm14
Lube-sleek 33
Dwell-18
Psp 12.5
Bolt-polished.
Top hat-polished

Ok guys. I bought this gun used. It had a polished bolt. Gun was it great condition. Shot awesome. But it was kicking really bad one day and fixed that problem thanks to you guys. But now this thing keeps leaking down the barrel. I replace the top hat small oring and it didn't stop the leak. So I replaced the bolt sail oring and it stop the leak. Lube it back up. It shot great then couple pods later it started to leak again and it was the same bolt sail oring. Shot great then it started leaking again. So I took the bolt apart and cleaned all the grease off and started testing the orings for fitment. And it seems like the bolt sail oring (015-BN70) was really loose. And I test fire when I replaced it and it was tight. So I am wondering since the bolt and top hat are polished that it's burning up the lube like its a polishing compound. And just eating those bolt sail orings. So please any info will help. Like maybe getting the bolt anodized. Or just getting a new bolt.
do this


replace :

017/014 tophat
015 sail
017 can

you might need to order yourself some urethane 017's to be able to seal that leak...

otherwise buy a new dm14 bolt/can/tophat

I'd only ever it get polished by a respectable person (pooty) cause they know how much to take off
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Old 03-11-2014, 11:01 AM #8
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Quote:
Originally Posted by Vegard View Post
Polishing removes the 'natural' pits in the metal that would normally retain lube. So your theory is sound.
Pretty much what Vegard said and you're thinking.
If you check blue prints you often times see a finish call out, which is a number followed by a check mark. That's usually a max call out, often I see 32 or 64 finish call outs. So a max of 32 or 64 for the surface finish.
Thing is when you get down into the single digits and you get that mirror finish, nothing sticks to them. That's fine for some parts as they may need to shed oil, grease, or other things. But when you want it to hold grease, the grease can't stick to it.
So those mirror like finishes people having been going for on bolts are actually screwing them up. Not only are they changing tolerances (you can remove a couple thousandths and take the part out of round) but you remove the surface finish that's designed to hold the grease.

Even if you bought a BW polished bolt, that's polished to a proper size and finish by machining standards. When somebody does it themselves you don't know what you have. You may have a 2 Finish when you need at least a 16-20 Finish to hold the grease.
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Old 03-11-2014, 11:23 AM #9
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Thanks guys. When I am at psp Dallas I will go to dye.
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Old 03-11-2014, 11:50 AM #10
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Thanks guys. When I am at psp Dallas I will go to dye.
good luck sir! I hope it works out.
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Old 05-19-2014, 03:39 AM #11
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I'm having same issue but I have stock bolt, changed all o rings listed with dye o rings still leaks .changed all o rings with o rings from o ring monkey kit still leaks, lpr is set to stock. If I push back slightly on bolt tip it seals lea until I fire marker then slow leak starts again?
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Old 05-19-2014, 05:09 AM #12
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Quote:
Originally Posted by pb slenger View Post
I'm having same issue but I have stock bolt, changed all o rings listed with dye o rings still leaks .changed all o rings with o rings from o ring monkey kit still leaks, lpr is set to stock. If I push back slightly on bolt tip it seals lea until I fire marker then slow leak starts again?
check to see if the tip of your bolt has grooves in it.
the aluminum is very soft, and can get grooves from the detents in the sides of the front of the bolt. has been a problem for a few years.
if so, that is causing your leak when the bolt is in the rear position.
your only solution is to either let a qualified person polish the bolt, to smooth out the bolt tip.
or buy a new bolt.
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Old 05-19-2014, 12:24 PM #13
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Quote:
Originally Posted by jojo750 View Post
check to see if the tip of your bolt has grooves in it.
the aluminum is very soft, and can get grooves from the detents in the sides of the front of the bolt. has been a problem for a few years.
if so, that is causing your leak when the bolt is in the rear position.
your only solution is to either let a qualified person polish the bolt, to smooth out the bolt tip.
or buy a new bolt.
Dye is issuing replacement bolts along with updated detents to try and prevent this issue
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Old 05-19-2014, 08:38 PM #14
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Quote:
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Dye is issuing replacement bolts along with updated detents to try and prevent this issue
holy crap.. thats news to me..
wish they would go back and do this for all the guns that have had this issue...
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Old 05-19-2014, 09:08 PM #15
Spilner22
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Originally Posted by jojo750 View Post
check to see if the tip of your bolt has grooves in it. the aluminum is very soft, and can get grooves from the detents in the sides of the front of the bolt. has been a problem for a few years. if so, that is causing your leak when the bolt is in the rear position. your only solution is to either let a qualified person polish the bolt, to smooth out the bolt tip. or buy a new bolt.
Yes the bolt had grooves from the detents. Dye didn't have a bolt but they where cool enough to have a bolt overnighted to the psp event. And it fixed the problem and never had another problem and the fun shoots amazing.
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Old 05-20-2014, 10:58 PM #16
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I have a BW bolt on the way, is there new detents so as not to do same to it?
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