Compression fitting leak at 45'c

[Npiet1]

So the left fitting leaks at 43'c, right at 45'c. I've changed fittings, tubing, looked for cracks and made it hand tight as possible.

I've changed the fan profile to compensate but it still has a very slow leak when it does read that temp. It's only those fittings.

Any help will be appreciated.

 

Specs

Ryzen 4 1400

1060 6gb

16gb Corsair Vengeance pro 3200mhz (running at 2999mhz due to first gen ryzen)

Block: Icue XC7

Fittings: Primochill Flex St 1/2 x 3/4

 

*I'm water cooling a 1400 because I'm new to OC, no need to worry about damaging anything because it's all about to be replaced anyway.

[RollinLower]

since it'll only leak at those higher temperatures i guess the thermal exapnsion if the plastics cause the seal to fail.

you could try tightening them some more, but you should be carefull with the Corsair stuff since it's really all just plastic. 

 

[For Science!]

Also make sure the tubing sits all the way down on the barb.

[HM-2]

What tubing are you using?

[Npiet1]

Thinking about putting another 360mm rad on top to compensate for the temps.

 

5 hours ago, RollinLower said:

since it'll only leak at those higher temperatures i guess the thermal exapnsion if the plastics cause the seal to fail.

you could try tightening them some more, but you should be carefull with the Corsair stuff since it's really all just plastic. 

 

I've tighten them as much as possible by 2 hands and my whole body. It is all plastic which is why I didn't  really want to.

 

1 hour ago, HM-2 said:

What tubing are you using?

Mayhems Ultra Clear, it was cheap but after the release of the 4000 series and GPU I will be switching to hard line. I only used soft tubing because it was my first time water cooling and there's a lot of things I can only learn with experience.

 

 

Thinking about putting another 360mm rad on top to compensate for the temps because in summer it will be in at least 30'c ambient temp. 

[HM-2]

Could it be a slight disconnect between metric and non metric sizes? The Mayhem stuff is metric iirc and the Primochill imperial, which can potentially cause issues depending on the margin of error in the manufacture.

[Npiet1]

1 minute ago, HM-2 said:

Could it be a slight disconnect between metric and non metric sizes? The Mayhem stuff is metric iirc and the Primochill imperial, which can potentially cause issues depending on the margin of error in the manufacture.

Yeah, I remember when researching people suggested using the same brand for fittings and tubing but due to covid  I couldn't exactly do this, I might see if I can grab some Primochill branded one.

[HM-2]

I wouldn't worry too much about getting the same brand, but something in imperial sizes should give you an indication if this is the issue. I'd also check to make sure your tubing cuts are straight as they can be.

[Mick Naughty]

I’d be more concerned about the fluid temp. Not much room left before other failures. 

[Npiet1]

21 hours ago, HM-2 said:

I wouldn't worry too much about getting the same brand, but something in imperial sizes should give you an indication if this is the issue. I'd also check to make sure your tubing cuts are straight as they can be.

They are 100% straight, I made sure of that and bought a pipe cutter just for it.

13 hours ago, Mick Naughty said:

I’d be more concerned about the fluid temp. Not much room left before other failures. 

What's wrong with the fluid temp?

 

 

 

 

Upon further investigation it turns out the tubing is sliding out at the temp but still have water coming out between the fitting top when I push it back in. Like For Science said. Is there a glue I could use?

 

Edit: Just a thought it's the increased temp causing the fluid to expanding which increases pressure pushing out  the tube right? So I've got on my distro a G1/4 port that catches air, would it be a good idea to leave it open? It won't leak, will probably evaporate but should stop the tube from coming out?  My only concern is letting in bacteria.

 

Edit 2: Figured out how to turned down the pump to 2800rmp, temps equilibrium at 38'c  after stress testing with AIDA64. No leaks for now. The entire system is cooler all sits below 40'c except for GPU.

Edited July 11, 2020 by Npiet1
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