Engine cooling system fittings

[Ndx]

Hi Guys,

The TEE fittings on my N63TU started leaking... They are made out of plastic.... And this engine runs very hot ( two turbos and catalytic converters are under hood on top of the engine )

The OEM fitting is 3/8 on one side and then 1/2 but at the end of the hose... It's 3/8 again.

I found nice aluminum made tees that are 3/8 all around any issues with changing to that, considering that it is restricted at the end to 3/8?

Any issues with aluminum heat soaking and transferring heat back to the hose?

The fitting point to the right is 1/2 size


And then second spot is the Y fitting...

https://dy5vgx5yyjho5.cloudfront.net/images/v2/700x500-qT8G4tsI76x241000.jpg

It looks like above, can I replace it with Tee I can't find this in aluminum...

I'm not sure if there are any fluid dynamics... I know that this car has second coolant reservoir for turbos... And if it runs dry, it will suck coolant from main loop maybe those odd sizes and not typical Y is designed for fluid dynamic suction or something?

I might get those custom made for me... So they are perfect replicas in aluminum

Thx guys

 

[eljefino]

Heat soak? Everything's bathed in 210 degree coolant anyway. Aluminum doesn't hold heat particularly well either.

I would try to match OE shape and diameter as well as possible-- they could have reasons for restrictions here & there.

 

[Ndx]

Originally Posted by eljefino
Heat soak? Everything's bathed in 210 degree coolant anyway. Aluminum doesn't hold heat particularly well either.

I would try to match OE shape and diameter as well as possible-- they could have reasons for restrictions here & there.


Yup, that's what I'm thinking... I guess I will need to get them custom made ?

 

[mattwithcats]

Brass 10mm by 12mm by 10mm hose barb fitting should work...

Metalwork Brass Reducing Hose Barb Y Manifold Fitting, Reducer Y-shaped 3 Way Tee, 3/8" x 3/8" x 1/2" Hose ID, 10mm Barb x 10mm Barb x 12mm Barb (Pack of 2) https://www.amazon.com/dp/B07C6BG13K/ref=cm_sw_r_cp_tai_SqScEbFMDTNF3

 

[Ndx]

Thank you...

But what about mixing brass In cooling loop...
Aluminum and brass equals corrosion no ?

 

[zzyzzx]

Don't you already have brass freeze plugs in the engine block? I would not worry about brass. Even if it's somehow bad, it's going to be way better than plastic.