Join Date: Nov 2008
Location: Deale, MD
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Normally really brown orange or rusty AF is a sure sign that oxygen is getting in...
I took a peek at the coolant this weekend expecting to find the nice green of antifreeze, instead finding an ugly brown/rust colored water.
Any tricks to draining the coolant, flushing and refilling?
Yanmar 3GM30F...where the heck is the heat exchanger?
Such as an air leak or a head gasket. Sometimes electrolisis from a bad ground. AF doesn't generally fail to that extent on its own....
But it could be that you are looking at orange AF (Dexcool or similar) or just plain neglect over a long time.
I would change it and then watch closely.
(when asked how he reached the starting holds on a difficult rock climbing problem that clearly favored taller climbers - he was perhaps 5'5")
"Well, I just climb up to them."
by Joe Brown, English rock climber
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