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I need to pay more attention but that humming/ whining noise at idle seems to have gone away... I'm now thinking that it might have been from that same hose when it had a small crack... the leak eventually turned into a hole causing a rough idle... I hope that was it... definitely need to replace ALL hoses when I get engine rebuild...

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Painted the wiper with a matt black... looks a lot better but hard to tell in this pollen covered pic :)