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ICS L85A2 Hop Up problem

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Old December 4th, 2011, 20:03   #1
Mr P
 
Join Date: Jun 2008
Location: Lower Sackville, NS
ICS L85A2 Hop Up problem

Just recently bought an ICS SA80/ L85A2 and gamed it for the first time today. The gun was fantastic apart from one problem. For some reason the Hop Up is always making the BB arch upwards after about 100 feet, even on the lowest Hop Up setting.
Can anyone help me with my problem?
All help is highly appreciated
Cheers
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Old December 4th, 2011, 21:21   #2
Fong242
 
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Hi,
What's the weight of the BBs?
Fong
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Old December 4th, 2011, 21:33   #3
Mr P
 
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Hi,
What's the weight of the BBs?
Fong
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Old December 4th, 2011, 21:49   #4
R.I.T.Z
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have you tried removing the barrel/hopup assembly and checking the barrel for any obstructions
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Old December 4th, 2011, 23:20   #5
Fong242
 
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Like you, I noticed that at minimum hopup setting low weight BBs would arc up. You can either modify the hopup unit to reduce the hopup effect or change the rubber.

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Old December 5th, 2011, 02:21   #6
Wrath144
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The hopup system was the main thing I hated about my L85 when I had it. Possible solutions are to use a rubber with the 'bump' shaved off, file down the 'nub pusher', or to put a small drop of glue on the part of the adjuster that contacts the wheel so it sits slightly higher.
As far as I remember, I used the shaved rubber. I've worked on a few different L85's though, and the filed nub pusher is definitely the more permanent solution.
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Old December 5th, 2011, 08:11   #7
Mr P
 
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Location: Lower Sackville, NS
Thanks for the input so far, I wish I was more Tech savvy, if I were to get another hop up rubber, are there any recommendations, I'll take a look inside when I get five this week.
Thanks Guys
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Old December 9th, 2011, 14:44   #8
Wrath144
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Try the ARS Rubber. It has a smaller 'bump' than your average rubber, it may work better without modification.
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Old December 10th, 2011, 12:14   #9
Mr P
 
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Originally Posted by Wrath144 View Post
Try the ARS Rubber. It has a smaller 'bump' than your average rubber, it may work better without modification.
I can't seem to find one, would you recommend one of these SCS rubbers? Would it work with the ICS L85 Hop Up system?

http://www.airsoftparts.ca/store2/in...oducts_id=1593

Cheers
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Old December 10th, 2011, 12:21   #10
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http://www.airsoftparts.ca/store2/in...oducts_id=1772

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Old December 10th, 2011, 13:01   #11
Mr P
 
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cheers mate don't know how I missed that
still curious about the SCS as well, wondering if it will fit the hop up.

Thanks again
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Old December 10th, 2011, 18:40   #12
Wrath144
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That will only make your overhopping problem worse, unless you file the pusher.
Also, thats not a rubber, its just a nub.
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Old December 26th, 2011, 13:40   #13
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Since I got it my ICS L85A2 (SA80) has been great except for the hop characteristics. Even with the hop off the BB's went skywards and off to the right.

The BB's going to the right is due to the hop applying 'lop sided' pressure due to its design and with the hop off some of the rubber bump was visible in the barrel.

This is what has worked for me..........

1. replaced the hop rubber with a madbull blue BUT i ground the hop bump off.

2. i threw the nub away and replaced it with a 5/32" ball bearing out of a bicycle head race set. 5/32 is just under 4mm and fits in the nub slot perfectly.

3. I reduced the height of the hop arm (the bit that pushes down on the nub) so that off was off and there was no protrusion into the barrel.

4. Now the new 'nub' pushes perfectly downwards onto the BB with no 'lop sided' pressure. When I applied the correct amount of hop the BB's fly straight and level with no deviation until the end of their flight.
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