goldboy9
Member
i open my bonnet then i saw that my coolant the tube next to my rad was coming out from the cap and when i undone it abit more it was bursting out why?
Technical coolant bursting out from cap
- Thread starter goldboy9
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Technical coolant bursting out from cap
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Head gasket gone? Combustion pressurising the cooling system?
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goldboy9
Member
there no other signs of head gasket blown mate.. cant be it
did you open cap when engine is hot?
coolant might be overfilled.. the cap is desighned to release coolant if overfilled.
they needs there expansion space..
coolant might be overfilled.. the cap is desighned to release coolant if overfilled.
they needs there expansion space..
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goldboy9
Member
it was coming out the cap when i ant even touched it and i was like the hell so i un done it and it was flying out..
people are saying i need a new cap to hold pressure?
people are saying i need a new cap to hold pressure?
yeah iagree try anew cap.
run coolant low. halfway between Min/max and see how you go.
is heater blowing out nice n hot?
iknow its hot out there but keep a check for heat coming out of heater whilst running this.
Edit. also keep acheck on the water hoses. if they feel solid turn engine off straight away..
careful here as hoses can blow on cars with coolant problems, ive seen afew people sent to burns unit in the past.
so mind how ya go !
run coolant low. halfway between Min/max and see how you go.
is heater blowing out nice n hot?
iknow its hot out there but keep a check for heat coming out of heater whilst running this.
Edit. also keep acheck on the water hoses. if they feel solid turn engine off straight away..
careful here as hoses can blow on cars with coolant problems, ive seen afew people sent to burns unit in the past.
so mind how ya go !
Last edited:
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NEVER NEVER NEVER REMOVE A COOLANT CAP WITH A HOT ENGINE
The coolant can run upto temperatures 110Deg C
That will burn and scold simple as
Remember the cap allows pressure to build to about 1BAR, that 1 bar allows the boiling point to go over 100deg C
Air in the system can a ""boiling"" of the coolant
Boiling coolant because lack of flow can cause possible up-roars
Overfilled coolant
over-pressured, such as combustion gases entering the coolant system, which ""forces"" the water out
Ziggy
The coolant can run upto temperatures 110Deg C
That will burn and scold simple as
Remember the cap allows pressure to build to about 1BAR, that 1 bar allows the boiling point to go over 100deg C
Air in the system can a ""boiling"" of the coolant
Boiling coolant because lack of flow can cause possible up-roars
Overfilled coolant
over-pressured, such as combustion gases entering the coolant system, which ""forces"" the water out
Ziggy
Try a new cap. Then get a compression test done. All other "signs" of HG failure are rumours, nothing more.
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goldboy9
Member
got a new cap now see what happens 
nice and tight!
nice and tight!
