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How To Know If Cracked Head Or Gasket?

SXC_R33

By SXC_R33,
in Engines & Forced Induction

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SXC_R33 Mentor

SXC_R33

Posted
Posted

hey guys a mates r33 gtst out of the blew has started to idel very rough and it begain to over heat so all hoses have been changed and flushed the system and added coolant.... also when car is turn off water in the overflow bottle is bubbling???? anyone know whats going on

all help is much appreciated???

ODessA Collaborator

ODessA

Posted
Posted

take the radiator cap off and let the engine idle, if the water bubbles and froths up and has oil in it then u prolly blew a head gasket, take it too a mechanic they got a thingy they put on there and if it loses compression etc etc.

brother_david Rising Star

brother_david

Posted
Posted

I guess this wont help, but anyway...

Had the same prob on my BMW, the earlier owner had changed headgasket, rebuild the head, and changed cooler along with some other things, when i bought it.

It acted the way you describe, but there werent any oil in the water etc, and if it idled for a somewhat long while it started to stutter, and the water in the overflow bottle started bubble.

Someone mentioned i should check if there were air in the watersystem, and there were some, got it out and now its a whole lot better.

Probably wont help you but who knows, it might :thumbsup:

Craved Grand Master

Craved

Posted
Posted

bleed the radiator again, using the tap near the plenum that has the label "do not open when hot"

other test is for exhaust gas in the cooling system.. they put it over the cap and it changes colour if gases are in it...

for $330 for a cometic metal gasket and time if your mechanically minded then you can fix it up easy and cheap if it does show gas.

BezerkR32 Veteran

BezerkR32

Posted
Posted (edited)

water is going out the exhaust brother, Chemical testing the system is the way to go, blown head gaskets dont always blow to an oil gallery, most common is cylinder to cooling system. other test is to pressure test cooling system with spark plugs out, then crank engine, if water is blown out of spark plug tube, thats bad.

something has caused the car to overheat, repair leak, check thermostat, flush radiator. Blown headgasket is the result of something else failing.

' date='23 May 2006, 06:34 PM' post='2194735']

could it be the water pump?

where does the leak go to?

Edited by Bezerkly

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