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275 Posts
My 5 has decided to start p!ssing it's coolant out of the overflow on the expansion chamber.
It's not overfilled - in fact when it cools down the tank is pretty much empty (as you might expect if it's all been leaking out!)
If I lift the top off the expansion tank whilst the engine is running you can see a constant stream of air bubbles coming out of the pipe that comes from the top of the radiator.
Checked my cylinder compression - 3 of them are at 12 BAR, and the other (3rd from the front) is at about 11.4 BAR.
Is my head gasket buggered?
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UPDATE: It looks like it probably was a leaky head gasket. After changing it all 4 cylinders are at about 12.5 BAR, and I'm no longer losing coolant
It's not overfilled - in fact when it cools down the tank is pretty much empty (as you might expect if it's all been leaking out!)
If I lift the top off the expansion tank whilst the engine is running you can see a constant stream of air bubbles coming out of the pipe that comes from the top of the radiator.
Checked my cylinder compression - 3 of them are at 12 BAR, and the other (3rd from the front) is at about 11.4 BAR.
Is my head gasket buggered?
-------
UPDATE: It looks like it probably was a leaky head gasket. After changing it all 4 cylinders are at about 12.5 BAR, and I'm no longer losing coolant
