Manky water in engine

1. user_34945 Regular Poster Joined: Jun 2009 Harleston, Norfolk Posts: 469 Mk2 Saxo Vtr 16V

   #1 1st November 2010, 17:45

   Right, so i bought the 16v engine with a suspected blown head gasket, apon stripping it down the head gasket was intact with no leaks. The leak was infact coming from a leaking rocker cover. Drainded all of the oil from the sump and was all one colour, pretty much black. So what is the cause of the manky water? Its not oily, just brown and gunky? my first thought was that the previous owner drowned it, but engine is not rusty or seized Any ideas welcomed!
2. blackie_2k5 Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B

   #2 1st November 2010, 17:47

   lmao, there all manky, the hot water rusts the cast iron block from within, it then goes really browny from all the iron deposited in the water
3. user_34945 Regular Poster Joined: Jun 2009 Harleston, Norfolk Posts: 469 Mk2 Saxo Vtr 16V

   #3 1st November 2010, 17:53

   Ah right, so basically i paid 150 for a vts engine with a small leak and manky water that can be replaced, cheered me up!
4. York1366 Established Member Joined: Jan 2009 Louth/Lincolnshire Posts: 1540 Stage 4.5 Litchfield 725bhp R35 GTR

   #4 1st November 2010, 17:59

   Yeah water will go that colour almost a week after you change it lol
5. mlawlan69 Saxperience Forum Bum Joined: Sep 2010 leeds Posts: 4389 MCS R53 S/C 16v furiooo

   #5 1st November 2010, 18:05

   Bargain there then !!!!
6. user_34945 Regular Poster Joined: Jun 2009 Harleston, Norfolk Posts: 469 Mk2 Saxo Vtr 16V

   #6 1st November 2010, 18:09

   Will de-ironised water help? I work for a company with a big spray area and all they use is de-ironised water so it will be free.
7. Quick Saxperience Post Whore Joined: Mar 2003 United Kingdom (England) Posts: 7064

   #7 1st November 2010, 18:32

   Anti-freeze has corrorison inhibitors in it.
8. dave-in-the-saxo-vtr Infrequent Poster Joined: Sep 2010 Ilkes, Derbyshire Posts: 173 Saxo vtr 51 plate ltd edition

   #8 1st November 2010, 19:50

   Yes as previously stated...anti freeze has anti corrosion protection
9. blackie_2k5 Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B

   #9 1st November 2010, 20:38

   not all anit freeze does, cheap shit corrodes more
10. user_34945 Regular Poster Joined: Jun 2009 Harleston, Norfolk Posts: 469 Mk2 Saxo Vtr 16V

    #10 1st November 2010, 20:41

    Might go for some pre-mixed then, see what halfrauds have to offer.
11. axsaxoman Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380

    #11 2nd November 2010, 20:08

    I have never seen any antifreeze that does not contain a corrosion inhibitor --you should NEVER run ANY engine on plain water as all engines have disimilar metals in them ,so they will cause a battery type action which means corrosion ., blocked/or holed heater matrix+ poor cooling .
    25% will give you protection from reezing 33%-50% --depending on type of coolanr will give you corrosion protection.
    it should be changed every 3 years .
    the only exception is something like "water wetter" which improves cooling ,but has no anti-freeze quality .