Should there be a hole here?

Post by **Da dan** » 07 May 2017, 20:14

The cap for the overflow coolant tank appears to have a little hole drilled through it then gunked up. Should this be there or do I order a new one? Would this also be a contribution to why it empties its self somehow ?

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Post by **itchyfeet** » 07 May 2017, 20:19

three holes in the top of tank as standard to let it breathe, not in the cap

Post by **Da dan** » 07 May 2017, 20:24

Ok so a hole in cap shouldn't make any difference if that tank is not pressurised?

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Post by **itchyfeet** » 07 May 2017, 20:29

Da dan wrote:Ok so a hole in cap shouldn't make any difference if that tank is not pressurised?

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Tank behind number plate flap is vented yes, if you remove it you will find three holes in a tab in the top.

Post by **Da dan** » 07 May 2017, 20:32

Cool. That answers my question. Thanks for that.

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Post by **Cecil** » 07 May 2017, 20:56

My top up tank cap had a hole in it,I think caused by a previous owner drilling right through when fitting a number plate ! I overcame it by making a disk of inner tube rubber to fill the inside the of the cap.

Post by **RogerT** » 08 May 2017, 19:50

Re: Should there be a hole here?

Thought this was a rust thread. Guess what I've been looking at today?