[millar190]

is a viscous fan fooked if you can stop it with your hand when at running tempreture:doh::doh::doh:

 

[The Mad Hat Man]

is a viscous fan fooked if you can stop it with your hand when at running tempreture:doh::doh::doh:

and if yu cant stop it - yo hand will be

 

[storm99]

If you use your hand to try to stop a fan at running temperature then i'd suggest its your brain thats ****ed.

 

[millar190]

i can run my hand on the flat surface on top of fan and stop it with not much force i dont stick my hand in the fan

 

[wammers]

is a viscous fan fooked if you can stop it with your hand when at running tempreture:doh::doh::doh:

If you can stop it easily it is. It should never be impossible to stop but more difficult when hot than when cold.

 

[millar190]

thanks for the sensible answer,all i was trying to find out was if the viscous was not working properly could it cause a fault in the system and blow some coolant out without overheating???:doh:

 

[The Mad Hat Man]

no it wont blow out coolant.

 

[dougdotcom]

The fan makes more noise when cold as the clutch system is working, after a few mins it will make far less noise this is when you could stop the fan but do use something like a welding glove or your hand may need stiching back on

 

[millar190]

if it was not getting cooled properly then it would go into overheated mode and blow coolant out would it not.

 

[The Mad Hat Man]

if it was not getting cooled properly then it would go into overheated mode and blow coolant out would it not.

yes - but you said....

could it cause a fault in the system and blow some coolant out without overheating???:doh:

and the answer to that is no.

It is the overheating that causes coolant to expand or an HGF, not a viscous fan.

 

[millar190]

****ing thing is frying my head if i drive it 4-5 miles it will blow coolant out and then it drives on as normal i know when it does it because the coolant blows onto the eas wires under header tank and causes a fault on eas but temp gauge does not seem to move once it blows out then it will drive as normal i have already done head gaskets but there is still a problem

 

[storm99]

Sounds like you've got a blockage somewhere that gets released under pressure when it gets up to temperature. Have you flushed the rad and system thoroughly?

 

[wammers]

****ing thing is frying my head if i drive it 4-5 miles it will blow coolant out and then it drives on as normal i know when it does it because the coolant blows onto the eas wires under header tank and causes a fault on eas but temp gauge does not seem to move once it blows out then it will drive as normal i have already done head gaskets but there is still a problem

Your not overfilling it by any chance are you. It must be filled to level when engine is cold. Never overfill it will just blow out any excess.

 

[The Mad Hat Man]

first Q - how warm does your heater get?

coz if it dont get het, i reckon its an air lock - turn yo heater to as hot as you can.

 

[millar190]

my heating system is a ****ing mess i have to fix it all,fans no longer work i probably have a flap blend motor jammed, it is not an overfill of coolant either. but i do have a strange flow of coolant from the throttle housing back to the header tank,is it possible that this mess can **** the whole system up and cause all systems to fail

 

[millar190]

just for the record it has a new radiator, new stat, new header tank,newpressure cap.and when i had it apart there were no signs of any block problems.

 

[Datatek]

just for the record it has a new radiator, new stat, new header tank,newpressure cap.and when i had it apart there were no signs of any block problems.

Have you actually tested the stat in a pan of hot water? Sticking new stats have been reported recently. Put it in a pan of cold water and put it on the stove to heat up and watch to see if it opens smoothly, better still if you have a thermometer so you can check the temperature that it opens at

 

[millar190]

this is actually the second new stat as the first one did not work this stat is working fine

 

[Datatek]

this is actually the second new stat as the first one did not work this stat is working fine

How do you know it's "working fine"?

 

[millar190]

when car is at running temp all pipes are warm radiator flow is good and can get flow from bleeder pipe from top of rad back to header tank,