Other Testing cooling lines in carbon hulls

[Freakrider]

sj762 designed a test today to check if cooling lines are leaking inside a carbon hull and under the tray. The lines in the pump area are blocked off with a bolt capping off a cooling hose. Inside the hull a water hose is hooked up and the lines are put under full pressure. Hull is propped up in the front and drain plugs open and monitored for any leaks. Whatcha think ?

 

[RMBC Freeride]

I know this all to well... setup looks good. What are the results?

Sent from my XOOM 2 using Tapatalk

 

[Freakrider]

I know this all to well... setup looks good. What are the results?

Sent from my XOOM 2 using Tapatalk

I had no leaks in either line and they were pressurized for a good while. I might have a leak in the tray/foothold area still checking.

 

[Harbor]

Hulls taking on water ?
Engine bay or tray?
Poizen tested his by putting the water hose up the tray drain when removed and looked where the water came out. Result was all around bulk head, exhaust tube, he did not have a scupper tube

 

[Balduccimoto]

If you can find one, a smoke machine would probably work good for this. Im talking about the ones used for automotive to find intake manifold/evap leaks. You could just remove one of the drains, shove the hose there and wait for some smoke. You could call a local mechanic shop, explain to them what you need done and ask them how much they'd charge you. The one we have actually has a guage to measure how much of a leak there is.

 

[Sanoman]

Nice idea,the only word of caution would be having too much water pressure on the water hose and end up causing a leak problem.

 

[Superunatural]

You should still cut the tray out and inspect. Just because they hold pressure now doesn't mean they are good.

 

[Freakrider]

Hulls taking on water ?
Engine bay or tray?
Poizen tested his by putting the water hose up the tray drain when removed and looked where the water came out. Result was all around bulk head, exhaust tube, he did not have a scupper tube

Tray, so I have been running with the drains open like some guys do.Might try the filling up the tray idea.

 

[Freakrider]

Nice idea,the only word of caution would be having too much water pressure on the water hose and end up causing a leak problem.

You mean if your aluminum cooling line is corroded and on the verge of leaking and the water pressure of the hose breaks through the corrosion ?

 

[Harbor]

When Poizen water tested his tray he removed the entire tray drain, base and all and just shoved the garden hose in there but did not seal it to the hull so water pressure can't build up too much


You can see his video in post 369 on page 19 of "poizens aquabot build"
Also first video in post 348 shows the leak around the exhaust tube

 

[Little_Franny]

Harbor, Poizen was testing the hull and tray for leaking water into the hull and tray area from outside water while floating, Freakrider is testing the aluminum cooling lines from the pump area to the engine bay for leaks while those lines are pressurized from cooling water from the pump. Carbon and aluminum react and cause corrosion, which can lead to pinholes in your cooling lines and filling the area under the tray.

 

[Harbor]

Harbor, Poizen was testing the hull and tray for leaking water into the hull and tray area from outside water while floating, Freakrider is testing the aluminum cooling lines from the pump area to the engine bay for leaks while those lines are pressurized from cooling water from the pump. Carbon and aluminum react and cause corrosion, which can lead to pinholes in your cooling lines and filling the area under the tray.

yes I know but he really doesnt give his symtonms, i asked what hes chassing but he did not disclose and he says the tubes test ok so the issue must lie some where else would be my guess

Maybe hes just checking tube integrity then yes my info would be irrevalent aggreed

 

[Little_Franny]

I think its more of a its gonna happen sooner or later so you check it once in a while as part of maintenance, but i could be wrong. Not saying your providing bad info, just helping clarify for someone who might be reading and not know the difference.

 

[Freakrider]

Harbor I am getting some water in the tray area.

 

[McDog]

Fill the tray with water and see where it comes out. I did this during assembly on mine. Works perfect and very easy. Water will come out of cooling lines of there are any holes in them.

 

[Waveblaster785]

Better to cut it out. This only tells you if the lines are leaking pretty severely. I cut mine out, filled the center section with water and put 5lbs on the lines. Then brushed soapy water all around the seams.

I found 2 pin holes and a small leak in the trim tube.


Sent from my iPhone using Tapatalk

 

[Superunatural]

We


Sent from my iPhone using Tapatalk

 

[Harbor]

Just pinch off the cooing hoses in the engine and use a hand held vacuum pump @ the pump side hoses and see if the tubes can retain a vacuum or do it vise versa pinch off at pump and vacuum test the engine side. If you can confirm a tube leak then Cut the tray open

 

[Waveblaster785]

We


Sent from my iPhone using Tapatalk

The best part is when I was typing this I was hearing you saying "We Goose, We..."