View Full Version : intercooler water sprayer questions

10-25-2010, 10:54 PM
Hey everyone,
so I installed a water sprayer and controller unit this avo when i should have been studying.... but anyway it all works well, except that it leaks when its not spraying. what I did was put a T into the windscreen washer tank, then ran that through a 2nd washer pump, which is lower than the 1st on (stock one for the windscreen) then ran a pipe back up over the top of the tank and then back down to the sprayer at the intercooler. Whats happening is that when the pump is started then it starts a siphon and then it just dribbles out the sprayer after its terned off.
Does anyone know how to fix this?

10-25-2010, 11:09 PM
Go to the volvo dealer and ask for a check valve for the windshield washer system off of a 2003 volvo s60 it is small but if you wrap the ends in some electrical tape or or something like that it will work fine and stop the leaking. I used this to solve the same problem when converting those useless headlight washers into a people squirter [>_<]

10-25-2010, 11:31 PM
cool thanks, although do you think a normal check valve off an aquarium pump world be strong enough?

10-25-2010, 11:48 PM
Heatshrink tubing works in place of the electrical tape and won't get nasty and gummy over time.

10-25-2010, 11:54 PM
cool thanks, although do you think a normal check valve off an aquarium pump world be strong enough?

i never thought of that but its worth a shot this piece is about $16

10-26-2010, 12:16 AM
bet its a lot more here lol, a new temp sensor was $90 for my car from the steelership, yea ill go into the pet shop tomorrow, they are only like 5 bucks so even if it breaks after a day it was worth a shot

J Ozzie
10-26-2010, 02:46 AM
Defiantly a great thing to have for summer.. Damm heat soak!

10-29-2010, 10:40 PM
Fix, put a T in at the highest point with an aquarium air pump check valve, when the pump pumps the water through the pipe it acts as a venturi and sucks the valve open letting a little bit of air in, then there water column has a bit of air in it so much less surface tension and the siphon dosnt start.

10-30-2010, 08:01 PM
I want to see pics of the complete project! This would be something I'd love to try in the spring!

10-31-2010, 05:12 AM
ill try to get some up in a couple days

11-01-2010, 05:55 PM
As requested some pics:
sorry about the shity phone cam,
the controller,
it is a cusco controller, as far as I could find there are no English instructions but if anyone in the future ends up with one and needs help then PM me. its fairly simple.
the sprayer its self:
The Tee into the stock washer piping, the black thing is the stock pump
The fish tank check valve solution, it works well

Oh and the pump is up behind the intercooler, it needs to be lower than the stock pump and the T so that it can self prime. it is a washer pump off a mazda that I got 2nd hand for next to nothing.
and because I have been on here for nearly 2 years and never posted a pic of my car, this is the audi in winter mode a few months back.

11-02-2010, 07:29 AM
not bad mang....how much is that "kit"?

11-02-2010, 12:46 PM
dont know what they cost new, I got it 2nd hand for 150nzd (although it had never been used), thats about 100usd, but car parts are usually 2 or 3 times more here than they are over there. If you want to do it cheaply I think it could be done for about 20-30 bucks if you used a manual switch rather than a controller and used small mister sprayers for gardens/pot plants. Thats what I had intended doing before the controller turned up and it had the sprayer with it. there are better controllers around as well, this one I just have set to go off above 3500rpm. but you can get "smart" ones that will incorporate throttle body pos, revs boost intake temps etc into the calculation as to how long and when to spray. All of the piping is just cheap garden stuff I had lying around, it works fine but I will change it for black auto stuff when I get a FMIC, along with adding some more sprayers for the IC and the radiator. All up its cost me about 200nzd/150usd for the controller, pump, pipe, Ts, joiners, sprayers, reducers, and the random bits of stuff you always have to buy. Not bad I thought, because like I said everything costs 2-3 times more here.