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Author Topic: Coolant flush  (Read 7375 times)

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TheBoy

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Re: Coolant flush
« Reply #90 on: 23 September 2007, 19:24:25 »
Quote
coolest on the block? ha ha ha

i hope so after all this!!!

i just want the damm red VX antifreeze to stay red after i return to check it, something which is NOT happening and costing me a damm fortune  :'(
Apart from the 'wasted' 5l of red, shouldn't be costing anything  :-/
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Entwood

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Re: Coolant flush
« Reply #91 on: 23 September 2007, 19:33:30 »
It took me a total of 8 flushes to clear mine .... and it was driven for at least 5 miles between flushes .. except for 7-8 which had a 250 mile drive !!

In went the antifreeze after the 8th drain and it still looks a nice slightly orange colour a week later .. :)
« Last Edit: 23 September 2007, 19:39:04 by entwood »
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Wayne

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Re: Coolant flush
« Reply #92 on: 23 September 2007, 19:36:33 »
wish mine did!
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Andy B

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Re: Coolant flush
« Reply #93 on: 23 September 2007, 19:50:58 »
It does take a lomg time. I emptied the coolant via the drain and topped back up with hot water each time, ran it for a couple of minutes to top up(ish) the system again & then drained it. I also did a bit of waht Broocie had suggested & ran the engine with the drain tap opened a little but with a hose connected to the hot tap keeping in replenished.

(I really do need to do the same with my Astra - it's had plain water in for the last few weeks  :-[  :-[  :-[ {or is it months?])
« Last Edit: 23 September 2007, 19:59:52 by Andy_B »
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Wayne

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Re: Coolant flush
« Reply #94 on: 23 September 2007, 19:54:25 »
why hot water? thought it had to be cold?
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Andy B

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Re: Coolant flush
« Reply #95 on: 23 September 2007, 19:59:08 »
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why hot water? thought it had to be cold?

Why should it be cold? Hot was used as the water coming out was hot  --- thermal shock & all that! (Been there done that many years ago as I was limping my MkIII from Pompey to Manchester using what ever water I could find as I had a hole in the rad. I managed to crack the block! :'()
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Wayne

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Re: Coolant flush
« Reply #96 on: 23 September 2007, 20:01:49 »
good point, my dad did tell me that you shouldnt use cold water on hot engine in case you crack the head!
so why was i told to put a hose in my car and run cold water into it when engine running, lol

sometimes i couldnt be more confused  :-/
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omega18

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Re: Coolant flush
« Reply #97 on: 23 September 2007, 20:04:15 »
It does take a long time if the cooling system has not been flushed aout before, after each flush though the gunk coming out should start to reduce,
I did mine yesterday and it took 4Hrs with filling up running for 10mins or until the thermostat opened and then draining again. I carried on doing this with clean water until all the crude had stoppped coming out.
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Andy B

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Re: Coolant flush
« Reply #98 on: 23 September 2007, 20:05:25 »
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good point, my dad did tell me that you shouldnt use cold water on hot engine in case you crack the head!
so why was i told to put a hose in my car and run cold water into it when engine runnig ....

Broocie(?) was assuming that you'd not yet run your car up to temperature. You can do this if the engine is still cold with out fear of cracking anything.
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Entwood

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Re: Coolant flush
« Reply #99 on: 23 September 2007, 20:10:32 »
Don't forget to have the heater on "max" whilst doing this .. or you will not clean out the water trapped in the heater side of the system !  :)
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Wayne

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Re: Coolant flush
« Reply #100 on: 23 September 2007, 20:13:35 »
have run it on Maximum everytime buddy!
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hotel21

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Re: Coolant flush
« Reply #101 on: 23 September 2007, 23:02:21 »
Quote
Quote
good point, my dad did tell me that you shouldnt use cold water on hot engine in case you crack the head!
so why was i told to put a hose in my car and run cold water into it when engine runnig ....

Broocie(?) was assuming that you'd not yet run your car up to temperature. You can do this if the engine is still cold with out fear of cracking anything.

Andy B - quite correct.  It was not assumed.

Quote
From engine cold.....
Unscrew coolant filler cap and insert hose.  Water not running yet.   etc.....   :y
 

Wayne - no offence intended.  read what was typed as to full description of what to do....   :y
« Last Edit: 23 September 2007, 23:19:55 by hotel21 »
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