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Radiator Cap on the Overboil resevoir 

 

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 Post subject: Radiator Cap on the Overboil resevoir
Posted: Thu Feb 18, 2010 11:04 am 
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Hey all ! 8-)

Ive been driving around for the past week now and the coolant in the system has been coming out the over boil and have had to top it up twice. Now the system only got serviced September New Coolant Hoses, even water pump is newish, But im not to sure if the Cap is the correct cap, its Rated at 110 Kpa and therubber seal init is abit squeeshed but not destroyed, its only about a year old I have no clutch fan I have twin thermos they come in at 85 shut off at 80. If anyone can help cheers.

THanks alot.
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 Post subject: Re: Radiator Cap on the Overboil resevoir
Posted: Thu Feb 18, 2010 1:34 pm 
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head gasket??? pressurizing the cooling system over 110kpa??

 

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 Post subject: Re: Radiator Cap on the Overboil resevoir
Posted: Thu Feb 18, 2010 8:25 pm 
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Have you tried changing the Radiator Cap? might also be the Thermostat.
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 Post subject: Re: Radiator Cap on the Overboil resevoir
Posted: Thu Feb 18, 2010 10:16 pm 
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EA90GHIA wrote:
Hey all ! 8-)

Ive been driving around for the past week now and the coolant in the system has been coming out the over boil and have had to top it up twice. Now the system only got serviced September New Coolant Hoses, even water pump is newish, But im not to sure if the Cap is the correct cap, its Rated at 110 Kpa and therubber seal init is abit squeeshed but not destroyed, its only about a year old I have no clutch fan I have twin thermos they come in at 85 shut off at 80. If anyone can help cheers.

THanks alot.


Rob,

what temp is your Thermostat rated at? Your fans should cut in at 93 and off at 88. Try a new Radiator cap.

Lil_Lincoln, it isn't headgasket, it has an AU MLS gasket, and an ED head.

 

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 Post subject: Re: Radiator Cap on the Overboil resevoir
Posted: Thu Feb 18, 2010 10:20 pm 
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67RCE wrote:
EA90GHIA wrote:
Hey all ! 8-)

Ive been driving around for the past week now and the coolant in the system has been coming out the over boil and have had to top it up twice. Now the system only got serviced September New Coolant Hoses, even water pump is newish, But im not to sure if the Cap is the correct cap, its Rated at 110 Kpa and therubber seal init is abit squeeshed but not destroyed, its only about a year old I have no clutch fan I have twin thermos they come in at 85 shut off at 80. If anyone can help cheers.

THanks alot.


Rob,

what temp is your Thermostat rated at? Your fans should cut in at 93 and off at 88. Try a new Radiator cap.

Lil_Lincoln, it isn't headgasket, it has an AU MLS gasket, and an ED head.


that still dont mean it wont or hasnt blown a head gasket...
mls gaskets can still fail.. just not as common as the composite gasket..
but still beter to check the basics first!!
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 Post subject: Re: Radiator Cap on the Overboil resevoir
Posted: Thu Feb 18, 2010 10:24 pm 
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what's the running temp like? Could be a hairline crack in the head..

 

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 Post subject: Re: Radiator Cap on the Overboil resevoir
Posted: Thu Feb 18, 2010 11:49 pm 
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TROYMAN wrote:
67RCE wrote:
EA90GHIA wrote:
Hey all ! 8-)

Ive been driving around for the past week now and the coolant in the system has been coming out the over boil and have had to top it up twice. Now the system only got serviced September New Coolant Hoses, even water pump is newish, But im not to sure if the Cap is the correct cap, its Rated at 110 Kpa and therubber seal init is abit squeeshed but not destroyed, its only about a year old I have no clutch fan I have twin thermos they come in at 85 shut off at 80. If anyone can help cheers.

THanks alot.


Rob,

what temp is your Thermostat rated at? Your fans should cut in at 93 and off at 88. Try a new Radiator cap.

Lil_Lincoln, it isn't headgasket, it has an AU MLS gasket, and an ED head.


that still dont mean it wont or hasnt blown a head gasket...
mls gaskets can still fail.. just not as common as the composite gasket..
but still beter to check the basics first!!


The headgasket has been on the car for under 2yrs, it was a fresh head then too,

 

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 Post subject: Re: Radiator Cap on the Overboil resevoir
Posted: Fri Feb 19, 2010 12:06 am 
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Sounds like the head gasket is gone, check your oil for water signs and if you wanted you could always take your spark plugs out and get some one to turn the motor over and see if any water comes out of the spark plug holes.
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 Post subject: Re: Radiator Cap on the Overboil resevoir
Posted: Fri Feb 19, 2010 12:10 am 
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SV-Valiant wrote:
Sounds like the head gasket is gone, check your oil for water signs and if you wanted you could always take your spark plugs out and get some one to turn the motor over and see if any water comes out of the spark plug holes.

what about the fuel, the injectors will still be firing and it would be hard to tell if its fuel or water flying out the plug holes

 

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 Post subject: Re: Radiator Cap on the Overboil resevoir
Posted: Fri Feb 19, 2010 12:11 am 
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jerrytorry wrote:
SV-Valiant wrote:
Sounds like the head gasket is gone, check your oil for water signs and if you wanted you could always take your spark plugs out and get some one to turn the motor over and see if any water comes out of the spark plug holes.

what about the fuel, the injectors will still be firing and it would be hard to tell if its fuel or water flying out the plug holes


You would know the differance it isnt that hard
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 Post subject: Re: Radiator Cap on the Overboil resevoir
Posted: Fri Feb 19, 2010 8:51 am 
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Thanks for all your advice Boys yea I know for sure its not the head so Ill just try a new Cap first. Thermostats new too. sooo... Ill see how I go cheers.
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 Post subject: Re: Radiator Cap on the Overboil resevoir
Posted: Fri Feb 19, 2010 3:01 pm 
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Caps fail over time, cheapest item to replace.

 

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