Water in V and Evans coolant

[robbo]

Just had a thought and would like some other opinions. I have a slight water leak in the V not much I normally top up a mug full every 3-4 weeks. The car can sit all week and not a drop in the V until I go for a drive so it must be coming out under pressure i think its coming from the pump slot. I have been thinking about using the Evans waterless coolant as there is very little pressure in the system when hot well that's what they say I thought that might cure my problem. What say the guys who know.
Cheers Rob.

[iani]

I'd have thought it would be best to fix any leaks before moving over to an expensive coolant that you wouldn't want to see leaking out surely?

Ian

[flying farmer]

Very expensive stuff to leak out, also several articles that I have read reckon the thermal conductivity of the stuff is not as good as water so it tends to make the engine run hotter. I will let others try it first!

Neil

[robbo]

Ian
The leak is so small at the moment it doesn't seem worth all the agro of pulling the manifolds off then the pump out. If I was loosing more coolant then yes but I can live with this at the moment. I just thought no pressure might = no coolant in the V. Neil there seems to be differing opinions on this stuff. I have read quite a lot about Evans not just on here but on other forums as well.
Rob

[Stagsongas]

Rob,

My conjecture;

Evans say that as there is no water in their coolant, it does not expand nor evaporate (steam) to the same degree as water based types would. If expansion of the coolant is less, the overall system pressure will be less. Fine, accepted.

Even so, any liquid used as a coolant is presurised inside (and after) the pump. If your tiny leak is due to pump presurisation, the system will leak any kind of coolant.

Regards

Steve

[robbo]

Cheers Steve.
I never thought of that. I was just thinking about expansion. Oh well another idea consigned to the bin I will just have to put up with a wet V.
Cheers guys.

[stag-phil]

Have you tried K-Seal, a lot of people have had good results.

Phil

[robbo]

Phil
I thought about k-seal but have been put off with people talking about problems with the heater and also that its a hell of a job to get it all out of the system when changing the antifreeze. Also not sure it would help the pump to stop leaking if the leak is coming from the pump seal.
Rob

[Stagsongas]

Cheers Steve.
I never thought of that. I was just thinking about expansion. Oh well another idea consigned to the bin I will just have to put up with a wet V.
Cheers guys.

Rob,

In an ideal world (yes, I know....!) the money would be better spent on sorting out the leak.

My Jury is still out on waterless coolant for many reasons, especially in view of its cost, and when put into a potentially leaky old Bucket (I mean mine, not yours) As someone else suggested above, let the bravehearts try it out for us, perhaps for a year or two. It'll either be a blistering success or on the boot sales at £5 a gallon.

I'm not in favour of anything that has the potential to block narrow galleries, thermostat jigglers and heater matrices either. It's better that engineering does not come out of a bottle. Just my £50 worth.....(inflation!!)

Regards

Steve

[wilf]

If it is really a small leak.......................

Let it leak.

Who knows, it might stop?

Mine only leaks at 2 degrees C. Higher, no problem, lower, no problem. 2 degrees C? Leak.

I ignore it. It is just attention-seeking.

[robbo]

Yes it is a small leak but it still bugs me. You never know it might stop it hasn't got any worse and I was hoping as I put more miles on the car it might stop. Well the PO only ever done about 500 miles a year I think iam now getting for 3000 miles since I brought the car at Easter time. I have to say the more miles I do the better the car becomes and the smoother the engine seems.
Cheers Rob

[mjheathcote]

Try running the car with no cap using water for a controlled run, better if you are using a header tank.
After all a water antifreeze mix does not boil until 107 degrees C if 50:50 mix and normal running should be less than 90/95 degrees C.
You can then see if you still have the leak with no pressure in the system.

[milothedog]

Another thing that seems to have been forgotten is the fact that the Evans coolant is highly flammable and we all know how incontinent a Stag can be. I believe some race circuits ban it, don't they

The last thing you need is an engine bay fire where it's decided spray it all over the manifolds.

Ian.

[robbo]

http://www.evanscoolants.co.uk/userfiles/file/PDS/PowerCool-PDS.pdf

Hi Ian
According ot this it's not classed as flammable however I seem to recall reading somewhere that under certain conditions it can burn but saying that I have also read that an antifreeze mix can also be flammable under certain conditions.
Rob

[milothedog]

http://www.evanscoolants.co.uk/userf...erCool-PDS.pdf
Hi Ian
According ot this it's not classed as flammable however I seem to recall reading somewhere that under certain conditions it can burn but saying that I have also read that an antifreeze mix can also be flammable under certain conditions.
Rob

I stand corrected if that's the case Rob but I'm sure there was something about it being flammable, I tried to look for a COSHH data sheet for it but couldn't find it on the net, and yes Antifreeze will burn and you can't see the flame just the heat haze. Our fire officer at work used to demonstrate it under controlled conditions.

Ian


I found this but don't know if its the same stuff, looks like it but called something else in the States?

http://contrails.free.fr/temp/NPG+_MSDS.PDF