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got the email thanks Ladas, yeh the Fender procedure is different, the bottle is mounted higher then the bleed screw already.But that still dont answer the question, how do i get all the coolant out?? If I blow it with air wont I then definitely get an airlock when I refill?
No you won't.Quote:
Originally Posted by crump
If you have drained the system fully - what has replaced the fluid - yep air, so introducing at one end under pressure, with the other end open - will remove any water, and that's it. When you stop pumping air through - the air in the vacant space will just return, very quickly to normal.
, plus as said, I do prefer to undo the heater hoses, you don't really need to but the bottom of the heater matrix on most vehicle is very low, and the pipes go through the firewall at a higher level
Remove the bleed plug, and add the coolant slowly, take your time.
Will have to have a crack at this myself cos i'm in the same boat as crump, it just don't make any sense where the coolant is hiding.
ok, so i do it again, if I put a 40l compressor hose in the ex tank at low pressure is that enuff to blow it out?
Dunno about about putting the hose in the expansion tank - unless you can seal off the cap hole in the top of the tank sufficiently.Quote:
Originally Posted by crump
You can push the air through the bleed hole, or the small overflow pipe from the ex tank to the top of the rad. Or one of the heater hoses.
But only have one exit point open, preferably the lowest point, which I think is the bottom rad hose. - this will ensure the air will push through the whole system removing any water, make sure, if you have one, that the heater valve is open.
Low pressure 20 - 30 psi is good.
hey...youve done the job......you flushed it out with clean water......you put the coolant in.......you started it.....and drove it....and it didnt overheat.....
let it cool and check the level again.......
when its at operating temp.......open the bleed screw slightly and carefully....if there is any air it will escape through there......
just keep your eye on the temp guage for the next day or two as you drive.....and recheck the level when it has cooled......
Still worth while disconnecting the heater hoses under the bonnet and blowing that seperately
I don't think Defenders have drains on the block - or TD5 Disco's eitherQuote:
Originally Posted by PLR
I'm gonna drill one and plug it with the connector off the injector harness.:p
Totally agree Zook, however quite a few are using ready diluted OAT coolant, and you can't get enough of it in unless the system is completely empty.Quote:
Originally Posted by DEFENDERZOOK
I guess the easy route would be, not to use ready diluted coolant.
Then the coolant will mix with the water left in the system.
However - the premix is diluted with distilled water - and I guess I am being a bit picky here, but in some area tap water is 'full of crap'
Just my slant on things, and that is why I follow the routine I do.;)