Coolant Expansion tank cap - should there be a seal?
16 November 2011, 05:22 PM
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Coolant Expansion tank cap - should there be a seal?
Hey Guys,
Just wondering if this cap should have a seal?
Mine doesn't and I think I have air in the coolant system even after bleeding/burping. I've been told the air does come back even after bleeding, so wondering if the lack of a seal keeps leaving it back in!
This is the cap I refer to (except this guy painted his red!)
Just wondering if this cap should have a seal?
Mine doesn't and I think I have air in the coolant system even after bleeding/burping. I've been told the air does come back even after bleeding, so wondering if the lack of a seal keeps leaving it back in!
This is the cap I refer to (except this guy painted his red!)
16 November 2011, 05:48 PM
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No it doesnt need a seal.
If you look on the side of the tank (between the cap and bumper) Theres a little hole at the top. This allows the expansion of the coolant when hot and cold.
If you look on the side of the tank (between the cap and bumper) Theres a little hole at the top. This allows the expansion of the coolant when hot and cold.
16 November 2011, 07:07 PM
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thats just the overflow/expansion bottle. As long as the pipe is submersed then its cool.
Your header tank it the important one. metal tank with a rad cap on it,left hand side of the bay.
Your header tank it the important one. metal tank with a rad cap on it,left hand side of the bay.
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