Airlock TD5 radiator

**ladas** · 20th February 2007, 02:04 PM

Originally Posted by Redback

I just flushed my rad on the weekend and according to the instruction for a complete flush/refill it was supposed to take 13ltrs, but even with the bleed screw out it only took 7ltrs, i lifted the tank and did excactly what the manual said.

While filling clear water was coming from the bleed hole on the top hose, so i waited till red fluid came out then put another litre through till it was the same red as i was putting in the tank and then stopped, all up just over 7ltrs.

I check the level every morning and afternoon and so far all is good, i've even opened the bleed screw but no air just red coolent.

Should i be worried

Baz.

Did you use pre-mix 50/50 diluted or undiluted coolant ?

**Redback** · 20th February 2007, 02:25 PM

I used the Nulon consentrate and diluted it to the spec on the bottle.

**ladas** · 20th February 2007, 02:31 PM

Originally Posted by Redback

I used the Nulon consentrate and diluted it to the spec on the bottle.

We Baz if you mixed it 50/50 before you put it in, and you could only get 7 ltrs (3.5 ltrs coolant and 3.5 ltrs of water) of the mix in, and the system takes 13 ish ltrs - then the final concentration - is only about 25% - which is no good.

Unless you blow all the water out - that you cannot get out with standard draining - you should ad just the 6.5 - 7 ltrs of pure unconcentrated coolant.

You may have to top up with a small amount of water 0.5 ltrs +/-

**Redback** · 20th February 2007, 02:47 PM

OK, i'll see what i can do, i have a 5ltr bottle of consentrate in the garage, i might refill it again with that, i know it's waste but better that than $10,000.

Baz.

**ladas** · 20th February 2007, 03:11 PM

Originally Posted by Redback

OK, i'll see what i can do, i have a 5ltr bottle of consentrate in the garage, i might refill it again with that, i know it's waste but better that than $10,000.

Baz.

Baz, if you can carefully drain 5 ltrs out of the old stuff, and replace it with the 5 ltrs of concentrate, then you should be about spot on.

13 ltrs @ 25% concentration = 3.25 lts of concentrate

After you drain off 5 ltrs

8 ltrs @ 25% = 2 ltrs of concentrate

Add the 5 ltrs of concentrate

= 7 ltrs of concentrate

About on the money.

**Redback** · 20th February 2007, 04:20 PM

OK sounds good to me

Thanks Ladas

Baz.

Thread: Airlock TD5 radiator

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