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Hi guys.

I have been reading that there is a drain plug on the block which you can use to get rid of all the coolant from the block.

Does anybody have any pics of this plug or can you explain to me where it is??

I drained the radiator, took the hoses off it and put compressed air through the block, all up we only replaced 5 litres of coolant and thats including the resorvoir tank, i have read that the r34GTT takes about 8-9 litres so theres still 4 litres of coolant somewhere which i cant get out???

Any help will be greatly appreciated.

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Exhaust side, below runner 5 and 6. About half way down the block just under the water line for the turbo.

Approx 12mm hex head and extremely tight. Make sure you locktite it back up when you are finished.

Also make sure you have the ignition on with the heater on when you are flushing the system as it will be full of old coolant also.

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Exhaust side, below runner 5 and 6. About half way down the block just under the water line for the turbo.

Approx 12mm hex head and extremely tight. Make sure you locktite it back up when you are finished.

Also make sure you have the ignition on with the heater on when you are flushing the system as it will be full of old coolant also.

So turn on the car, have the heater on for a while until it gets hot, turn car off, drain radiator and engine bock, fill with water, bleed air out.

Run the car up again with heater on, drain the radiator and block again, bleed again,then fill with coolant while the car is runing with heater on??

Thats it corect?

Thanks for your help mate.

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nah man, take the thermostat out, jam the hose in there, turn the heater on, and start the car.

Keep it running for a few minutes after clean water starts coming out.

Make sure the output of the water goes somewhere where it won't hit the radiator fan and spray everywhere, etc.

Edited by The Mafia
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nah man, take the thermostat out, jam the hose in there, turn the heater on, and start the car.

Keep it running for a few minutes after clean water starts coming out.

Make sure the output of the water goes somewhere where it won't hit the radiator fan and spray everywhere, etc.

Will that completely drain out the block like the drain plug would?

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it will flush the block \ everything.

Just remember that you have fresh water in the block, so take that into account when putting your coolant in.

All I do - Take the radiator out, Jam the hose in where the thermostat goes, turn on the heater, start the car and run for a while until the water comes out clear. The tap water will keep the engine cool. Then I put it all back together (flushing the radiator manually) and pour the correct amount of coolant concentrate in, top up with distilled water, and keep topping up and bleeding until its full.

You could drain the block after you flush it, so that you can get more demineralised water in there (and less tap water). But thats up to you. Pretty good idea too actually.

Edited by The Mafia
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it will flush the block \ everything.

Just remember that you have fresh water in the block, so take that into account when putting your coolant in.

All I do - Take the radiator out, Jam the hose in where the thermostat goes, turn on the heater, start the car and run for a while until the water comes out clear. The tap water will keep the engine cool. Then I put it all back together (flushing the radiator manually) and pour the correct amount of coolant concentrate in, top up with distilled water, and keep topping up and bleeding until its full.

You could drain the block after you flush it, so that you can get more demineralised water in there (and less tap water). But thats up to you. Pretty good idea too actually.

Drain the block...by taking out the drain plug from the block?? if so where is that,everybody talks about it but i cant find anywhere that shows a pic of it or anything?? Do i have to take parts out to get to this plug??

Thanks for all your help mate.

Edited by TMW-R34
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Drain the block...by taking out the drain plug from the block?? if so where is that,everybody talks about it but i cant find anywhere that shows a pic of it or anything?? Do i have to take parts out to get to this plug??

Thanks for all your help mate.

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he already told you where it was, what else do you need?

Exhaust side, below runner 5 and 6. About half way down the block just under the water line for the turbo.

Approx 12mm hex head and extremely tight. Make sure you locktite it back up when you are finished.

Also make sure you have the ignition on with the heater on when you are flushing the system as it will be full of old coolant also.

all i do is remove the bottom rad hose and a heater hose, turn the heater on then put a garden hose into the heater hose. flush it till clean water comes out of the radiator, heater core and block. add 4 liters of coolant and job done.

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I found out the hard way just how much water stays in the block the other day..

Radiator was out etc, gave the waterpump a tap with a bit of 4x2 to break the seal, and i swear i got 2-3litres out of it.

Took well over 6l to fill it back up again.

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