Login or Sign Up
Logging in...
Remember me
Login
Forgot password or user name?
or
Sign Up
Log in with
Forums
Classifieds
Groups
Zero One Airsoft
Ground Zero Airsoft
Airsoft Festival
Today's Posts
|
Member List
|
Calendar
|
Forum Rules
|
Forum
Airsoft Related
Technical Help
Tech - Gas Guns
Announcement
Collapse
No announcement yet.
Zero One Ads
Collapse
TM fn5-7 not always returning
Collapse
X
Collapse
Posts
Latest Activity
Photos
Search
Page
of
1
Filter
Time
All Time
Today
Last Week
Last Month
Show
All
Discussions only
Photos only
Videos only
Links only
Polls only
Events only
Filtered by:
Clear All
new posts
Previous
template
Next
Dinsy
Cadet
Join Date:
Jun 2010
Posts:
30
Share
Tweet
#1
TM fn5-7 not always returning
4 September, 2011, 12:43
Hi,
my marui fn5-7 has started not fully returning after a while. Not sure whats causing this, I think its down to, as the gas starts to run low/cool down the friction between the hop-up chamber and slide stops it from fully retuning. Can tell as some of the paint from the hopup chamber has been stripped from the rubbing.
I've tried luding it up with silicone oil (abbey silicone gun oil 35) which slightly improved it, but still doesnt fully blowback.
Also thought it may be down to the recoil spring getting old, but searching for a replacement is near impossible, as are most spares for the fn57.
so my question is, has anyone had a simular problem with their gun, and if so, how'd they fix it? Is there a better lubricant to use, or should I start using a stronger gas like green (even though the fn57 is plastic apparentally its one thats designed to be able to run on green) as i currently use abbey ultra.
Cheerz for your help in advance,
Dinsy
Also, where the paints been stripped from the hopup chamber am i able to use any metal paint to just touch up, not a massive issue but I would prefer if there wasnt silver metal showing in the chamber.
sigpic
Mish
Cadet
Join Date:
Jan 2011
Posts:
20
Share
Tweet
#2
5 September, 2011, 14:19
Re: TM fn5-7 not always returning
I've recently been having the same problem, havent been able to fix it yet either. I tried using silicone oil, it worked for about half a mag then started not returning again, i found it normally only happens when i fire a single shot, if i shoot as fast as possible it was returning. Im also using abbey ultra and the paint is being stripped in the same place. I think i know where it is catching so i will try a few things out and let you know what happens.
Comment
Post
Cancel
Mish
Cadet
Join Date:
Jan 2011
Posts:
20
Share
Tweet
#3
5 September, 2011, 15:17
Re: TM fn5-7 not always returning
I just did some test firing and it seems as though the part that picks the bb up and pushes it into the chamber is slightly off centre. Whenever it jammed (twice in one magazine) i looked in the chamber and the bb had been pushed forward and was caught on something, but needed the forward assist to push it into the barrel.
I think the stripped paint is from general wear and tear as whenever i cock the weapon it returns fully and never catches it only catches when there is a loaded mag, and i have tried with three different magazines so they arent the problem.
Comment
Post
Cancel
Dinsy
Cadet
Join Date:
Jun 2010
Posts:
30
Share
Tweet
#4
5 September, 2011, 16:05
Re: TM fn5-7 not always returning
all right, i'll have to take a look, just fired off a whole clip with no problems.
always the case, when you want it to play up it works fine, but leave it untill the game day and it wont fire a round, hahaha.
I take it this is a common problem as you seem to be experiencing the same thing.
as for the slide not returning i was reconmended getting a nineball smooth ring, for the recoil spring. think i may give that a go and will post how it goes
sigpic
Comment
Post
Cancel
Mish
Cadet
Join Date:
Jan 2011
Posts:
20
Share
Tweet
#5
25 October, 2011, 21:43
Re: TM fn5-7 not always returning
Any news on how the nineball smooth ring is holding up? I played last weekend after just leaving it for a month, worked fine till near the end of the day where it was really sluggish at returning. Then a BB managed to get stuck in the slide, jamming it completely, had to take it apart to get it out. Also what BB's are you using?
Comment
Post
Cancel
Previous
template
Next
About the Author
Collapse
Find out more about
Dinsy
Working...
Yes
No
OK
OK
Cancel
X