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bubbles in radiator overflow

Tech Talk for Rover owners.

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bubbles in radiator overflow

Post by Malcolm01 »

ive been told that if there are bubbles in the radiator overflow tank, there might be a leak from the head. i also took the rover for a drive on the highway and within 25km the water and oil temp were in the red. any suggestions whats wrong?
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Post by 460cixy »

what engine? but yeah bubbles in the radiator filler can mean blown head gasket. but it could also have air in the system if its been open
range rover & series one landy!
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Post by Malcolm01 »

its a 84 range rover, 3.5 V8
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Post by 460cixy »

check for a blocked radiator or thermostat thats stuck first
range rover & series one landy!
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Post by Malcolm01 »

i know how to check the thermostat, but i dunno how to check the radiator, do i have to take the tank part off it?
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Post by 460cixy »

nahh dont do that does it look old and blocked? is it full of mud and grass and crap? is the aircon condensor full of crap? i have found lots of gargage in between the air con condensor and radiator before. also is there a small hose about 3/8 dia going between the inlet manifold and radiator or header tank make sure its clear should be able to blow throu it. and check the flame traps/pcv system for white milky crap and pull the oil cap off and look for milky crap along with the dipstick if its milky you have a leakey head gasket for sure. i allways replace them with the composit type not the steel rover type
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Post by RaginRover »

Malcolm01 wrote:i know how to check the thermostat, but i dunno how to check the radiator, do i have to take the tank part off it?
PM me if you get stuck I may be able to give you a hand

Tom
"It was just an ordinary day, and you saw them. There were guys in their Porsches, "Look at me in my Porsche, ha ha!" and they were overtaken by a van. Driven by a girl!"
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Post by 460cixy »

allways good to see ppl willing to lend a hand :cool:
range rover & series one landy!
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Post by RaginRover »

460cixy wrote:allways good to see ppl willing to lend a hand :cool:
:) us rover people have to stick together !

Tom
"It was just an ordinary day, and you saw them. There were guys in their Porsches, "Look at me in my Porsche, ha ha!" and they were overtaken by a van. Driven by a girl!"
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Posts: 79
Joined: Sun Jan 01, 2006 6:42 pm
Location: redcliffe, brisbane

Post by Malcolm01 »

thanks for the help guys, im gonna look at doing this tommorow, any problems ill post here. :)
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Post by disco95 »

I can sympathise mate, I'm going through it at the moment. Got my 3.9 heads in the machine shop :)
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