Thread: Airlock TD5 radiator

Originally Posted by crump

How do I know if I have one??

Difficult this one Steve, but if you drain, then flush with clean water, then fully, blow through the system with air to get all the water out,, not too much pressure though (I use nitrogen 'coz I don't have to pay for it) and fill up following the correct proceedure - you shouldn't have any problems. The amount of coolant should closely match the specs for your unit.

As I said in a previous thread, I always disconnect the heater hoses and blow those through as well.

When filling the D1, and the DII I am normally within 200 ml of the spec capacity.

MMMMM, I know I asked the question before in another thread, but I'm 6 litres short after following the Rave procedure, expansion tank is full, if I open the top bleed screw, coolant runs out, doesnt get hot (by the guage or to touch on the short trips I've been game to do), and I'm thinking of doing another change, but I'm sure the same thing will happen again.

Steve

The Disco has drain points on the bottom of the block, which pretty much ensures all the old water get's out.

I doubt, if you have drained, flushed, and filled to the 'letter' you will have an air lock. However it's more likely that the drain process isn't getting all the water out, which would mean your anti corrosion/anti freeze/coolant is being diluted to below the spec.

That is why I............

1. Remove the heater hoses

2. Blow through the system with nitrogen (or air)

You will be surprised, and sometimes quite wet, at the amount of additional water/coolant comes out when blowing it through.

Oh another thing, when you do refill it, do it sloooooooowly

Ladas

Hi Steve
On the Disco TD5 you need to unclip the overflow bottle from its retainers and lift as high as the hose allows to force the air out the bleed point in the top hose.
Check to see if its required in the Defender TD5.
Andrew

Originally Posted by LandyAndy

Hi Steve
On the Disco TD5 you need to unclip the overflow bottle from its retainers and lift as high as the hose allows to force the air out the bleed point in the top hose.
Check to see if its required in the Defender TD5.
Andrew

Andrew - yes, according to the instruction you do have to lift the expansion/overflow tank.

Originally Posted by ladas

Andrew - yes, according to the instruction you do have to lift the expansion/overflow tank.

not on the Fender instructions! As to Diluting coolant, its a 50/50 mix so all I could get in was 6.5 litres of coolant, so the mix should be right or over strength if anything.

Originally Posted by crump

not on the Fender instructions! As to Diluting coolant, its a 50/50 mix so all I could get in was 6.5 litres of coolant, so the mix should be right or over strength if anything.

Steve, in the TD5 instructions it certainly does. I'll email it to you.