rust in overflow

[chinee23]

I saw that the water in the overflow bottle was rusty so I did a flush and refill, that was about 3 mths ago, now I see rust again plenty of it in the bottle so much so that it has deposited a coating at th bottom of the bottle. What could be the problem. The car is a 323F 98 model using prestone coolant, green.

[demented]

the rust probably get into the engine block dread...so it might have rust particles on the sleeves and water jacket....you could try flushing the radiator and engine with the engine running with a hose stuck into the radiator

[InDeForest]

What water you put in it with the coolant? Chlorine from tap water breaks down to that rust looking deposit, its not rust.

[demented]

What water you put in it with the coolant? Chlorine from tap water breaks down to that rust looking deposit, its not rust.

serious?? i didn't know that

[chinee23]

I was worried that it was a head gasket leak or somethin'

[InDeForest]

Well as i ask, what water did you use in it? Someones gonna come along and tell me im talking sheit if its an iron block it will have rust etc. All im saying is that chlorine breaks down to look like rust. This is why you hear people using rain water or distilled water in their radiator, theres no calcium, chlorine, flouride, etc that is present in tap water.

[JUS4SHO]

i use blue waters in mine but i also have some sticky black deposit in my overflow bottle any clue?

[Hook]

the overflow bottle is the only place where ur water/coolant has a chance to settle so it stands to reason that if there's any contaminants in ur cooling system, it'll show up there eventually

SHO, meainkno what that sticky black stuff is, but I know for a fact that I only used to get that brown muddy lookin stuff when I had regular tap water in there so I guess there's some support for indeforest's comment

the way to get it all out actually isn't by flushing with the hose, that's just adding fresh chlorine...for me, the 5L bottle of blue water worked well and adding a bottle of the Wynn's radiator flush helped alot because u can drive around with it for about a week without problems

after a week, I flushed again with another 5L bottle of purified water and refilled with the premixed coolant....no rust/mud in my overflow since last year when I did that...I need to do a routine flush soon tho but

[sentraman]

I was wondering why the rass my overflow was looking like muddy water. Thanks people