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Discussion Starter · #1 ·
my 660 is pushing coolant out of the radiator i raised the frontend off the floor about 1ft, and purged the air out.When i start the motor with the
radiator cap off its pushing coolant out of the radiator
 

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Water expands when hot, so if you are overfilling that could happen as it gets hot

However, if it's pushing bubbles or steady sort of violence, it's likely compression pushing past the head gasket. Any milk in oil?
 
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