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Location:
Hobart
Registered:
June 2002
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Location:
Terrigal
Registered:
May 2002
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Re: quick one... signs of blown head gasket...
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Tue, 17 August 2004 06:27
 
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I'd be pretty confident thats a headgasket!
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Registered:
November 2002
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Re: quick one... signs of blown head gasket...
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Tue, 17 August 2004 06:50
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Have you got mocha coffee chocolate foam up high on the inside of your 710 (oil) filler cap ?
Mitch.
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Location:
Hobart
Registered:
June 2002
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Re: quick one... signs of blown head gasket...
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Tue, 17 August 2004 07:11
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| ra23celica wrote on Tue, 17 August 2004 16:50 |
Have you got mocha coffee chocolate foam up high on the inside of your 710 (oil) filler cap ?
Mitch.
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nope, none of that.
if there was water in the oil, would i see it on the dip stick, or will i need to drain it to see?
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Registered:
November 2002
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Re: quick one... signs of blown head gasket...
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Tue, 17 August 2004 07:18
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Hmm, OK.
If there is water in the oil, as the oil heats up the water separates from it and the resulting brown oil mist collects inside your oil fill cap as a 'mocha' foam.
You won't necessarily see any water on the dip-stick.
You might be losing water elsewhere, have you checked for tell tale coolant stains (green / red ) around the engine ?
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Location:
Switzerland
Registered:
September 2003
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Re: quick one... signs of blown head gasket...
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Tue, 17 August 2004 08:10
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Was just working on a friends car, It was loosing water and had fine bubbles (0.2mm diameter) constantly appearing when the radiator cap was off. I was worried about the head gasket or a cracked head, but I found a very small leak in the radiator, Just replaced the radiator, seems to have fixed it, no more fine bubbles, will know more in a day or so, see if it still looses water.
So you might be luck but then again it did not have any misfire
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Location:
Hobart
Registered:
June 2002
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Re: quick one... signs of blown head gasket...
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Tue, 17 August 2004 12:10
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The filler cap doesn't really have anywhere 'in' it that foam can build up. The engine is 18rg.
The bubbles im getting are quite large. If you fill the radiator to the neck, then run it for while with the cap off bubbles start coming. Big enough to spill coolant as they 'burp'.
im pretty sure its time for a head gasket....
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Location:
Brisbane
Registered:
June 2003
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Re: quick one... signs of blown head gasket...
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Tue, 17 August 2004 13:31
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those bubbles should go away if you leave the car run. it means there is air in the system. It happens whenever someone replaces coolant. It means you should "burp" the system.
if you could see water in the oil, you will also be able to see oil in the water.
id do some more research before concluding its a BHG!
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Location:
Perth
Registered:
May 2003
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Re: quick one... signs of blown head gasket...
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Tue, 17 August 2004 13:54
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Head gaskets tend to blow between cylinders. The simplest way is to do a compression test.
You can loose water into the cylinder(s). I have seen this on a falcon 6cyl motor.
You can expect bubbles in the coolant once the engine warms up (thermostat opened) as the water is circulating through out the engine.
If water gets into the oil, the oil will generally go a milky colour. If the engine has sat for a long time, only then will the oil and water separate to an extent that both are visible on the dip stick.
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Re: quick one... signs of blown head gasket...
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Tue, 17 August 2004 15:35
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my engine bay becomes a steam room when i go around the block, is this due to a head gasket blwoing on the outer side of the head and water seeping through or is this a blown heater hose or something???
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Location:
Hobart
Registered:
June 2002
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Re: quick one... signs of blown head gasket...
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Tue, 17 August 2004 23:25
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| V8_MA61 wrote on Tue, 17 August 2004 23:31 |
those bubbles should go away if you leave the car run. it means there is air in the system. It happens whenever someone replaces coolant. It means you should "burp" the system.
if you could see water in the oil, you will also be able to see oil in the water.
id do some more research before concluding its a BHG!
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they wont go away if they're coming from the combustion chamber 
and yes ive let it run for a long time, watching bubbles come out... they dont go away.
Yeh i might see if i can get a compression tester.
thanks all, for your input.
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Registered:
June 2004
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Re: quick one... signs of blown head gasket...
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Tue, 17 August 2004 23:38
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MR 1ggte, sounds more like a leak in your coolant system. my mx23 had a couple of holes in the radiator. it makes the engine over heat and boil the coolant, making lots of steam, and you'll lose all of your coolant. see if you can find any water stains anywhere in your engine bay. that'll lead you to the source of the leak.
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Re: quick one... signs of blown head gasket...
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Wed, 18 August 2004 01:53
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Oh i knopw my motor has a hole in it, because wheneve I try to put water in it comes straight out, but one night it just started to steam up and shit, I was wondering if that could be fixed temoraroily till my motor arrives from Japan?
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Registered:
June 2004
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Re: quick one... signs of blown head gasket...
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Wed, 18 August 2004 02:15
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how quick do you lose the water? if it isn't in the blink of an eye, you could try using an engine/radiator flush then a bottle of seal-up(chemiweld). that is if the time it takes to do it and the length of time you only need the engine for is worth it?
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Re: quick one... signs of blown head gasket...
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Wed, 18 August 2004 02:36
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See the thing is that the block and radiator has already been flushed, thats how i found out there were holes in the block becuase the gunk that was in there before was sealing up the holes, my head is cracked and i am waiting on a 1JZ from japan which gets here in about a week, but i really wanted to tkae it out and thrash it one last time....
But this chemiweld stuff sounds the goods, where can i get some and how much does it cost???
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Location:
Hobart
Registered:
June 2002
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Re: quick one... signs of blown head gasket...
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Wed, 18 August 2004 02:49
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did a compression test... can't deny it now.
1: 140 psi
2: 140 psi
3: 160 psi
4: 160 psi
also... number 1 plug looked a bit oily...
so i know what im doing this weekend...
hopefully i can get the gaskets by then
cheers
Chris
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Location:
On your mum!
Registered:
May 2002
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Re: quick one... signs of blown head gasket...
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Wed, 18 August 2004 07:35
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I have blown a couple of head gaskets hwere the cylinder pressure leaks into the coolant when engine is running. A compression test will not detect such a minor leak as it requires high cylinder pressure to induce the leak.
No oil into water and no water into oil - some exhaust fumes in the water tho.
The pressure created blows water out of the overflow - hence coolant loss.
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Location:
Brisbane
Registered:
May 2002
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Re: quick one... signs of blown head gasket...
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Wed, 18 August 2004 22:15
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Yup, that's exactly what happened to my 18R-G. A couple of full-throttle blats and the radiator was empty!
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