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The mkiv Supra Owners Club

Fitting a coolant bleed valve?


evinX

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Im going to be redoing my engine bay heater hoses at the rear of the engine, and while im at it, i want to fit a bleed valve to one of the hoses. Just a nice little touch to make life somewhat more simple, What i dont know is....do i fit it to the Inlet or Outlet hose?

 

https://s26.postimg.cc/eegp11ft5/DIAGRAM.png

 

https://s26.postimg.cc/ucper62bd/s-l500.jpg

 

cheers, Kev

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An airlock issue is created on GE engine when the radiator top hose is not fitted in correct position.

 

it's a bit hard to install it in the wrong position? its just 2 clamps and the hose is shaped. Long as its level its fine?

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it's a bit hard to install it in the wrong position? its just 2 clamps and the hose is shaped. Long as its level its fine?

 

I have come across this time and again.

 

If the wonk in the hose is not positioned to have the highest portion at the top, the rad/head won't/can't bleed, unless you jack the front high into the air.

 

Hey ho. :shrug:

Edited by David P (see edit history)
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My system is fine. I get hot air if needed. Just adding some more blue hoses in the bay. So while the supra is self bleeding. Fitting a nice bleed valve in the rear hoses wont hurt. Better than removing the cap and getting overflow when its just me doing it.

 

Kev opens valve. Air comes out...then a drip of coolant. Lock the valve. Kev bled the system :D

 

Outlet hose it is.

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To be fair, when I had an oem rad, it bled up easily (before adding any extra bleed points in).

When I swapped to an alloy rad, the problems started. Not sure if it's coincendence, but my heaters have never been as hot as they used to be.

 

 

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To be fair, when I had an oem rad, it bled up easily (before adding any extra bleed points in).

When I swapped to an alloy rad, the problems started. Not sure if it's coincendence, but my heaters have never been as hot as they used to be.

 

/QUOTE]

 

Mine went luke warm for a while. After much checking i didnt do the obvious first. Got a new oem cap from toyota. Bled the system. All was good. Maybe your alloy rad and cap arnt agreeing? Any light coolant marks around the cap neck?

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Funny you should say that, as there is - although it never seems to actually be wet and leaking.

I think the rad I've got is $#@!, and am thinking of getting a new oem one

 

/QUOTE]

 

I bet the cap isnt sealing. What cap you got? Could be the end to your luke warm rad

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