Hi guys, i have a problem again..

When my engine idling, i see bubbles popping up inside my radiator tank after i open my radiator cap.
I even encounter loss of 1/4 coolant inside my spare tank.
Is this the sign of gasket blown?

I had changed my head gasket, radiator fan, themostat, radiator cap, flush my radiator a few times n even timing belt n water pump just few months back.
Its even less than 10,000km of driving.

Is there any other causes of this?

I'm driving a Civic ek4 SiR.

 

did you get all the air out of the system when you flushed it? the engine has a blead valve

 

I didn't flush my coolant at all before this thing happen.

I had upload a video n hope u guys can give me more advise after viewing the video..

http://www.youtube.com/watch?v=c8Q0TsrZw-A

 

Yikes...that looks bad.

Does the gas coming out smell like exhaust?

The next step is to run a compression and leakdown test to confirm if the head gasket is bad.

 

U mean the smell coming out from radiator is it similar to exhuast?
I dun tink so ya..

 

Right. If the headgasket is blown, it will send combustion chamber gases into the coolant and the bubbles will smell like exhaust.