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Engine Guru's HELP.... Saxo...



Rob

ClioSport Moderator
Ok, I'm guessing this question can be answered by any engine guru's as i'm pretty sure its not saxo specific....

A good friend has a 1.1, 2000, saxo, and the other day accidently didn't pull the filler cap back on the coolant, halfway down the motorway car overheats and coolant has splattered everywhere...

He struggles home and refilled, but he's pretty sure the system now has an air lock in it.

The thing is the system seems to have three "bleed nipple" type things on it....

One which is a hand screwable thing that can be taken off (i'm assuming this is the correct one to bleed air out of the system)

One which is a hand screw but can only be turned 90 degrees and back again? (is this some kind of stop valve for something)?

One which is a nut, (I assume this is to drain the coolant from the system)


Now.... how does he bleed the sytem?

He tried to do it the other day, and the car was fine for a bit, and was blowing hot air etc, but then suddenly the air went cold and it over heated agian...

I have an idea, but I'm not sure if i'm right, does he just turn the engine on, let it run for a bit, then open up the hand screw bleed nipple type thing (the first one) and then just let the air hiss out, leave it open a bit and keep filling the system?

Please help CS :eek:

PS, sorry if this should be in other marques, I didnt know if it would get seen in there
 

TheEvilGiraffe

South East - Essex
ClioSport Area Rep
Squeeze the coolant pipes ? you'll feel if they are pressurised. Air should pop to the reservoir once the thermostat opens. If theres air around that, it'll never get hot enough to open and the water wont pump round properly.

Put it on a jack / ramp and get the top of the rad highest point on the engine (whist the engine is off...?
 

Rob

ClioSport Moderator
I need a proper lamen's explanation here mate, I'm not with the car, nor is it anywhere I can get to it, my friend is by no means a r****d, but has never done anything on a car, but he did manage to find the three nipples... lol!

What happens if if there is air near thermostat then mate?!? I think what you just said could be the issue, maybe it isnt openeing, which is why the air blows cold and the car then over heats?
 
  Cooksport Fleet
Blow down the filler cap!

Undo the thermostat bleed nipple, and wait untill coolant comes out.

Same with the heater matrix pipe.

Thats how we do ours :)
 

Rob

ClioSport Moderator
Blow down the filler cap!

With the nipple open??? What would this do? LOL!

Undo the thermostat bleed nipple, and wait untill coolant comes out.

Same with the heater matrix pipe.

Engine on or off??

Thats how we do ours :)

Cheers, which one is which, thermostat/heater matrix?

I dont have the car to look at.
 
  Cooksport Fleet
The two pipes which go into the bulkhead just to the right out the engine.

With the nipple open, it will force the coolant out the whole, then while the coolant is comming out (while you blow) put the nipple back in....

Engine off!
 
M

mini-valver

They can be a b*****d to bleed sometimes. Open the rad bleed screw and the one to the left of the inlet manifold, looks like a car tyre valve. Let it run upto temp, if coolant comes out either nipple, put the cap back on for a bit. Then repeat until the fan comes in.
 

Alastair.

ClioSport Club Member
  986'S 172ph1+182FF
3 bleed screws, 1 near the bulk head, tyre cap kinda screw, 1 on the thermo stat, allen key needed, and 1 on the top of the rad, undo all 3 of these until coolant is coming outa every hole. put all the caps back up, warm it up until the fan kicks in. leave to cool and then top up if ness.
 

Rob

ClioSport Moderator
Should that really be it? I don't understand why it's not cooling.... He'll give a load of things a go tmrw as I'll tell him these suggestions...

What is this thing that turns 90 degrees and back again? Sounds like a stop valve like on plumbing stuff etc?!?!? Hope that doesn't stop the coolant getting to somewhere important?!

Cheers for all the help so far, really appreciate all.
 

Rob

ClioSport Moderator
Is there a reason you'd undo that one then? Does it pull out when you undo it? He said it just seems to twist back and forth and do nout??

What way should it be to be open? Inline with the pipe or at right angles with it?

Which of all of the above methods would be best?

Once again sorry for all the questions.

Thanks all
 
M

mini-valver

Yeah to bleed the rad up. Turn it 90 degress and it will pull out slightly. It has a anti-drop tab thing on the inside which means you cant pull it out but you can undo it and pull it up.

From memory this on the pipe =====|===== is closed and ======--======= is open.
 

Alastair.

ClioSport Club Member
  986'S 172ph1+182FF
i always take the screw on the rad rite out until overflow then wak it back on.
 

Bluebeard

ClioSport Moderator
  Whichever has fuel
3 bleed screws, 1 near the bulk head, tyre cap kinda screw, 1 on the thermo stat, allen key needed, and 1 on the top of the rad, undo all 3 of these until coolant is coming outa every hole. put all the caps back up, warm it up until the fan kicks in. leave to cool and then top up if ness.

I've literally just finished doing a head gasket and radiator change on a saxo 1400 and copied ^^ Method.

Perfect. :D

(Thanks for the reply earlier Ali, ;))
 

lemonnobby

ClioSport Club Member
you have to have the bottle quite full if its the same design as a 106 due to the level of the bottle.. you head gasket??? whats goign on
 

Alastair.

ClioSport Club Member
  986'S 172ph1+182FF
I've literally just finished doing a head gasket and radiator change on a saxo 1400 and copied ^^ Method.

Perfect. :D

(Thanks for the reply earlier Ali, ;))

did that quick, easy peasy on them though, head off in like 35mins
 


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