Themrostat problem

1. Alexa L-plater Joined: Sep 2018 Posts: 95

   #1 8th October 2019, 18:47

   I bought the new thermostat (Automega) with housing for 1.1 Saxo.The problem is, it want open when the engine temperature rises, so I got overheating. Coolant was added and bleed screw opened,heating was on (works) ,but still it doesn't open.I checked thermostat on 1.4 VTS and it runs normally.
   
   For some reason this valve is dry,whe I try to bleed it???
   
   
   [url=https://imgbb.com/]
2. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #2 9th October 2019, 15:30

   Air in the system.
3. Alexa L-plater Joined: Sep 2018 Posts: 95

   #3 9th October 2019, 18:43

   1.1 is really notorious for changing coolant.If it's the air how come it's so hard to kick it out?
4. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #4 9th October 2019, 18:45

   The coolant usually comes out of that bleed nipple last,you'll hear a hiss then bubbles followed by coolant.
5. Bedford126 Saxperience Post Whore Joined: Jul 2010 Morley, Leeds Posts: 8469 Civic ep3 type r powered by TDI NORTH

   #5 10th October 2019, 07:38

   It’s not hard you’re probs just doing it wrong. Loads of guides on how to do it on here, have a search.
6. MartinObviously Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge

   #6 11th October 2019, 13:06

   You must bleed these engines cold with the engine off!
   
   You need to create a header of water, I use a 2 litre bottle with the bottom cut off.
   
   Put the bottle in the radiator cap and fill it - you can get special funnels but I can't remember what they're called. You must keep this bottle nearly full at all times.
   
   1.) You need to bleed the radiator first, then close it when there's no bubbles.
   2.) then the coolant housing (5mm hex/allen key?) then close it when it flows smoothly.
   3.) then the bleed cap at the back, then close it when the coolant flows smoothly.
   
   If you don't do it in this order, it will overheat.
   
   Anyone who tells you another method is wrong and just got lucky that they got the air out.
   
   Over time, the excess coolant will spill out, the "full" level is quite far down the radiator tank.
   
   p.s having the heater on the car makes no difference, these cars don't have heater valves. the core is always open.
7. Bedford126 Saxperience Post Whore Joined: Jul 2010 Morley, Leeds Posts: 8469 Civic ep3 type r powered by TDI NORTH

   #7 11th October 2019, 15:58

   Quote:

   Originally Posted by MartinObviously Anyone who tells you another method is wrong and just got lucky that they got the air out

   Nudes or it never happened!!!!

   1 user thanked this post: MartinObviously
8. Alexa L-plater Joined: Sep 2018 Posts: 95

   #8 21st October 2019, 16:56

   @Martin
   
   Where do you use 5mm key???
9. aldred309uk Frequent Poster Joined: Feb 2014 Blackburn, Lancashire Posts: 596 2002 Citroen Saxo desire 2001 Volvo V40 1.9D

   #9 21st October 2019, 20:37

   Quote:

   Originally Posted by Alexa @Martin Where do you use 5mm key???

   Right hand side of the picture, above the blue connector, the head of the bolt is horizontal towards the passenger wheel.
10. aldred309uk Frequent Poster Joined: Feb 2014 Blackburn, Lancashire Posts: 596 2002 Citroen Saxo desire 2001 Volvo V40 1.9D

    #10 21st October 2019, 20:38

    Underneath the blue connector, in that general area. The hose on that side of the engine returns to the radiator. In that housing there is an Allen headed bleed screw.
11. Alexa L-plater Joined: Sep 2018 Posts: 95

    #11 21st October 2019, 21:34

    You mean plug screw on housing for temperature sensor?
12. aldred309uk Frequent Poster Joined: Feb 2014 Blackburn, Lancashire Posts: 596 2002 Citroen Saxo desire 2001 Volvo V40 1.9D

    #12 21st October 2019, 23:23

    Quote:

    Originally Posted by Alexa You mean plug screw on housing for temperature sensor?

    Yes, that is the one which he means to be bled.
13. MartinObviously Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge

    #13 22nd October 2019, 17:40

    Sorry I never saw the tag,
    
    Yes it's a small brass screw on that housing.
14. Alexa L-plater Joined: Sep 2018 Posts: 95

    #14 23rd October 2019, 09:05

    Since I was running out of patient,I went to my buddy and used this
    
    https://www.aliexpress.com/i/32990020881.html
    
    to pump out the remaining air. Very useful staf, so I recommend it.
15. MartinObviously Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge

    #15 23rd October 2019, 18:26

    Quote:

    Originally Posted by Alexa Since I was running out of patient,I went to my buddy and used this https://www.aliexpress.com/i/32990020881.html to pump out the remaining air. Very useful staf, so I recommend it.

    That wont bleed properly because the radiator isn't the highest point.
    
    You won't know either, because the temp sensor won't tell you.
    
    If you're happy with it, then okay.
16. aldred309uk Frequent Poster Joined: Feb 2014 Blackburn, Lancashire Posts: 596 2002 Citroen Saxo desire 2001 Volvo V40 1.9D

    #16 23rd October 2019, 22:25

    When I replaced my radiator, I bled all 3 of the correct spots, I squeezed the coolant pipes too to move the coolant around. If you have air pockets at the bleed points, the system won't work properly.