CPS 1500 leaking

Repairs to water guns. Please put repair topics in this forum so that people do not have to sort through so many topics when looking for a repair. If a fix is included in the topic, please add (Fixed) before the topic title to indicate so.
Locked
User avatar
Shrike
Posts: 35
Joined: Sat Jun 04, 2011 6:30 pm

CPS 1500 leaking

Post by Shrike » Mon Aug 01, 2011 3:57 pm

one repair down, two to go :)

my recently rediscovered (or newborn, dont know for sure ;) ) cps 1500 seams to be leaking. ive taken it apart, which was quite a pain in the butt as nozzle cap just wouldnt come off. now that ive succeeded, i discovered that it seems to be leaking from the hole for the trigger pin, but only when i pull the trigger.
Image

does somebody have an idea how to fix this (im guessing that i have to take apart the nozzle valve casing again, yay)?

shrike

User avatar
DX
Posts: 1780
Joined: Wed Feb 04, 2004 1:00 pm

Re: CPS 1500 leaking

Post by DX » Mon Aug 01, 2011 6:33 pm

Seal is probably off or warped inside the valve.
Mess With the Best, Get Soaked Like the Rest!

2004 Red Sox - World Series Champions
2007 Red Sox - World Series Champions!

atvan
Posts: 451
Joined: Mon May 23, 2011 10:52 pm

Re: CPS 1500 leaking

Post by atvan » Mon Aug 01, 2011 9:23 pm

Have fun opening another pull valve. At least you will be experienced.
Me gyro, me fly plane.

My Blog

User avatar
Shrike
Posts: 35
Joined: Sat Jun 04, 2011 6:30 pm

Re: CPS 1500 leaking

Post by Shrike » Mon Aug 01, 2011 11:03 pm

i already got it apart. its a white one, so i only had to unscrew the screws and as soon as i put the box knife in the seam, it popped open.

atvan
Posts: 451
Joined: Mon May 23, 2011 10:52 pm

Re: CPS 1500 leaking

Post by atvan » Tue Aug 02, 2011 12:12 am

Nice. What was the problem? Is there some sort of O ring in the back of the valve to seal the rod?
Me gyro, me fly plane.

My Blog

User avatar
Shrike
Posts: 35
Joined: Sat Jun 04, 2011 6:30 pm

Re: CPS 1500 leaking

Post by Shrike » Tue Aug 02, 2011 8:49 am

theres nothing there that comes close to looking like a seal....

outside:
Image

inside:
Image

ive no idea what to do

shrike

atvan
Posts: 451
Joined: Mon May 23, 2011 10:52 pm

Re: CPS 1500 leaking

Post by atvan » Tue Aug 02, 2011 12:21 pm

Maybe that is your problem. It is odd that it is only when you pull the trigger. I would think it would be the ther way around. Maybe there is a small crack in the pin. Check it very carefully.
Me gyro, me fly plane.

My Blog

User avatar
Shrike
Posts: 35
Joined: Sat Jun 04, 2011 6:30 pm

Re: CPS 1500 leaking

Post by Shrike » Tue Aug 02, 2011 3:03 pm

it seems there is some kind of "sealing tube" around the rod inside the hole, and the water sprays from a gap between tube and plastic. sometimes when i push the rod up a little it wont leak.

User avatar
zeda.beta
Posts: 683
Joined: Sun May 03, 2009 10:49 pm

Re: CPS 1500 leaking

Post by zeda.beta » Wed Aug 03, 2011 10:00 pm

Try fitting your own "sealing tube" in the form of a replacement o-ring right at the end of the plastic, around the trigger rod. Epoxy the o-ring to the end of the trigger and you should have no more leaking problems.
I reject your reality and substitute my own.
Quack damn you.

User avatar
Shrike
Posts: 35
Joined: Sat Jun 04, 2011 6:30 pm

Re: CPS 1500 leaking

Post by Shrike » Fri Aug 05, 2011 2:26 pm

i think i kind of repaired it.
what should i use to completely seal the pull valve chamber again?
the screws seem to keep it together but after a few pumps it starts to leak a little.
i dont want to use epoxy, because i may want to open it again some time in the future

New Guy
Posts: 52
Joined: Thu Jun 16, 2011 10:34 am

Re: CPS 1500 leaking

Post by New Guy » Fri Aug 05, 2011 5:53 pm

A very, very thin bead of RTV silicone will work well.

User avatar
-G-JiV-
Posts: 350
Joined: Sat Oct 09, 2010 8:10 pm

Re: CPS 1500 leaking

Post by -G-JiV- » Sat Aug 13, 2011 8:46 am

In fact there is a very small o-ring on the pin on the inner side. THis pin is pushed back by the big spring, which closes the valve on the one hand but also holds the small o-ring in places to seal the pin.

If this is not seal you can replace the small o-ring by a new one, or install another, a bit smaller o-ring just in fron of the original one to get a better seal. You can also install a STRONGER spring inside the chamber. More force on the o-ring will also stop it from leaking(in case the o-ring is ok and not ruined)
CLeaning the whole thing is also a good idea as there is dirt and other unnecessary things dumped over the years of using.

Try all this, be careful with using glue to not stuck the pin^^

THe fact that water is coming from the pin when the trigger is pulled can also mean that the "trigger-mechanism" is not straight anymore. My the metal stab that connects the trigger with the valve is courved a little or not on it's way, may it is out of it's direction ? The stab can be shaped with a little force, may this solve the problem too.

This is all you can do, I managed to get every pin-leaking solved and seal again, any of these tips wil help :)

Good luck!
A gunner has to do what his Soaker requires...

User avatar
Shrike
Posts: 35
Joined: Sat Jun 04, 2011 6:30 pm

Re: CPS 1500 leaking

Post by Shrike » Sun Aug 14, 2011 7:50 pm

thanks for the advice GJ
but i already managed to solve the problem a week ago
right now im just trying to get the whole thing sealed again (actually i wanted to test the gun today but we were hit by a huge thunderstorm)

Locked