Best way to drain/change the coolant?

[wu11ie]

As above, I've tried searching but I can't find anything.

The coolant, if you can call it that, is the most horrible gunky colour you've ever seen and it REALLY needs changed.

What's the best way to drain it?,

My plan was to run it up to temp and take the return pipe off and feed it into a bucket whilst having a hose in the tank with a constant flow until the return pipe water runs clear, BUT........


would this work, and which pipe is the return pipe?

Thanks in advance

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[MG ZS STE]

do the same thing but with the bleed screw removed. are you bothered about catching it?

[wu11ie]

Originally Posted by MG ZS STE

do the same thing but with the bleed screw removed. are you bothered about catching it?

If I could it would be ideal but I'm on the driveway so I can hose it away if I can't.

Where is the bleed screw?

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[MG ZS STE]

Is it a 180? if so bleed screw on the right hand side of the engine on the big hose coming off the thermostat.

I have flushed through using a hose before but i have heard others prefer to use distilled water.

[wu11ie]

Originally Posted by MG ZS STE

Is it a 180? if so bleed screw on the right hand side of the engine on the big hose coming off the thermostat.

I have flushed through using a hose before but i have heard others prefer to use distilled water.

I wish! Lol, mines a baby 1.6 (110 I think).

I won't be leaving the water in I'll be draining the clean water out and replacing it with fresh coolant, I just want to try and clear out as much of the horrible stuff as possible.

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[MG ZS STE]

Not 100% when it comes to k series but found this

http://forums.mg-rover.org/mg-zr-rov...cedure-486931/

[talkingcars]

Take the thermostat out?

[JOHNDQ]

Originally Posted by talkingcars

Take the thermostat out?

Want to flush though the block or not to be fair I may have mis-read the original message as was having a cheeky look at work (phones are banned in workshop) I thought he meant the HG had gone and got oil/water mix. Either way if you wanted to flush though the engine correctly is easier to remove the stat or housing which is easy on the ZS than it is to remove the water pump

[talkingcars]

Originally Posted by JOHNDQ

Want to flush though the block or not to be fair I may have mis-read the original message as was having a cheeky look at work (phones are banned in workshop) I thought he meant the HG had gone and got oil/water mix. Either way if you wanted to flush though the engine correctly is easier to remove the stat or housing which is easy on the ZS than it is to remove the water pump

The conversation has lead to a suggestion to empty the system and refill with clean water, and drive the car to run it through to get the thermostat to open and fully flush the system and then do this several times.

Popping the thermostat out on the K4 is reasonably straight forward and the option I would take.

[JOHNDQ]

Originally Posted by talkingcars

The conversation has lead to a suggestion to empty the system and refill with clean water, and drive the car to run it through to get the thermostat to open and fully flush the system and then do this several times.

Popping the thermostat out on the K4 is reasonably straight forward and the option I would take.

I agree this is the best option but if you are not to good with cars it is a bit tricky to do the stat with the intake on. Plus bear in mind you might find any of the o rings split or expand with you remove it all if you don't have spares might run into trouble