Help With Water Cooling Tubing ID and OD.

[JackHammer]

I recently replaced a rudder on a boat and the rudder has a water pick up. The boat itself has its own water pick up built into the hull just behind the prop. I want to use a "Y" connector and add some tubing from the rudder and splice it into the existing cooling tubing with the connector. I am wanting to order from OSE and I see that there are several sizes to choose from so.... how does one go about determining the proper size needed. What is the best way to measure outside diameter and inside diameter? Thanks for any help in this matter.

[Tamelesstgr]

Just so I understand, you want to splice two water cooling sources into the 1 line you have running inside the boat?

[JackHammer]

Yes exactly. I was able to determine the OD of the tubing with a vernier caliper and ordered the parts I needed from OSE.

[Tamelesstgr]

Did you consider having separate cooling supplies for both the ESC and motor?

[JackHammer]

This is actually in a nitro powered boat.

[Fluid]

Is the boat running hot? What will happen with your proposed setup is virtually no more water flow into the engine. Whichever intake has the best flow will back flow some water to the weaker intake, don't do it. If you want more water enlarge the rudder pickup and through-hull fittings, then use larger diameter silicon tubing. Use zip ties to keep then on the fittings.



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[JackHammer]

Okay. I just didn't want to have to plug off the existing inlet but now I may just cap off the existing inlet and just run with the inlet from the rudder. To be clear though, both inlets would be using the same diameter tubing.

[Fluid]

Tubing makes little difference, it's the water pressure at the inlet.


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[JackHammer]

Oh okay. Thanks. I will probably use only the rudder inlet.

[JackHammer]

Thanks for all the advice on this subject, I am new at trying to modify things on anything for that matter so, advice and direction is very much appreciated. I have decided to totally remove the stock/original water inlet and use the water inlet from the new upgraded rudder that I have installed on this boat. I figure that I will remove the stock inlet which it in the hull, fill the hole with epoxy, smooth it out and touch up the paint and that will be done. The boat will have a new water inlet and will be modified and modernized, just gotta figure out how to remove the inlet without damage to the hull. Once all is done, it will have a clean and upgraded look. Thanks again for all advice and direction about this topic.

[JackHammer]

Whoo hoo!!!!!! My package from OSE is supposed to arrive today!!!! Now I can finally finish my modifications to my boat!!! Really excited to finish this thing up and hit the water. I must say also, they have really fast shipping when you order from OSE!!!!!! Very happy!!!!