water system pressurised

1. John_rdy Infrequent Poster Joined: Apr 2008 Posts: 161

   #1 20th May 2008, 12:05

   hey guys and girls,
   got another problem, ive managed to finally get my vts running after realising what the problem with it was, the woodruff key in the crank had sheered off so the the timing did what ever it wanted!
   fixed it now but my water?cooling system is pressrised to hell, im sure its not meant to be like that?????????? after a minute or so running if you undo the water cap the water splurts out everywhere!!!!!
   anyone got any ideas? could it be head gasket? ive not run it up to running temoperature cos its a recon head so i dont want to warp it if the cooling side is dead
   any help or thoughts would be a great help
   cheers
   joh n
2. Gabbastard Saxperience Post Whore Joined: Dec 2002 United Kingdom Posts: 8390

   #2 20th May 2008, 12:22

   coolant system is always under pressure when the engines warmed, thats why the caps there. Its only a problem if its blasting out the cap all the time, or is under a load of pressure within a minute or so of running.
3. RCD-Performance Established Member Joined: Dec 2007 Southampton Posts: 2278

   #3 20th May 2008, 12:23

   Question i was going to ask answered above lol
4. John_rdy Infrequent Poster Joined: Apr 2008 Posts: 161

   #4 20th May 2008, 12:36

   it looks pretty well pressurised to me to be honest, within a few minutes of running if you undo the lid most of the water gets spewed out of the top???? but i havent had it running up to temperature tho but surely thats not right?
5. Rogz Frequent Poster Joined: Jun 2007 Sunderland Posts: 726 Banned.

   #5 20th May 2008, 12:38

   Daft question, do you open the cap slowly or just sling it open? you have to let the bottle de preasurerise a little first...
6. RCD-Performance Established Member Joined: Dec 2007 Southampton Posts: 2278

   #6 20th May 2008, 12:50

   Surely if the engines cold the stat is not open so the system should not be pressurised?
7. MaRiO89 Saxperience Post Whore Joined: Jan 2007 Posts: 7705 Saxo VTS

   #7 20th May 2008, 12:54

   After the engine has been running, it will spurt water everywhere..
   
   Try opening the cap first thing in the morning and see what its like then, you may here a slight hiss for like a split second as you open it but no water should come out..
8. John_rdy Infrequent Poster Joined: Apr 2008 Posts: 161

   #8 20th May 2008, 12:55

   its getting far to pressurised, just run it to temp and all the pipes are rock solid, you can undo it as slow as you can and it hissis like a madun and then water weeeeeeeeeee,s out, head off again dam it
9. Rogz Frequent Poster Joined: Jun 2007 Sunderland Posts: 726 Banned.

   #9 20th May 2008, 13:18

   sounds like it is then if u let it off slow. is the rad in tackt?
10. John_rdy Infrequent Poster Joined: Apr 2008 Posts: 161

    #10 20th May 2008, 13:46

    would you guys always use new head bolts or can you get away with using the old ones?
11. Quick Saxperience Post Whore Joined: Mar 2003 United Kingdom (England) Posts: 7064

    #11 20th May 2008, 14:13

    I'd try bleeding the system before taking the head off!
12. Rogz Frequent Poster Joined: Jun 2007 Sunderland Posts: 726 Banned.

    #12 20th May 2008, 15:59

    Yea make the head the last resort tbh mate! there might just be a clog or something somewere!