Rusty Coolant?

"Rev Hang Slows My Roll" (RevHang) 03/04/2014 at 22:22 • Filed to: None

0

10

Pulled some coolant lines to try and find the source of by brown coolant and found this:

What the hell is this stuff and how can i fix it?

puddler > Rev Hang Slows My Roll 03/04/2014 at 22:26

0

looks like rusty water residue. i see 2 intake valves, how old is this engine?

but flush it well and use straight coolant and distilled water. i dunno if those 50/50 mixes use distilled, and am not a fan of paying extra for their water anyway.

Rev Hang Slows My Roll > puddler 03/04/2014 at 22:30

0

its an m42 from a 1991 BMW 318i

puddler > Rev Hang Slows My Roll 03/04/2014 at 22:32

0

i've found one source that suggests running CLR remover (calcium, lime, rust). lemme see if i can find anymore.

puddler > Rev Hang Slows My Roll 03/04/2014 at 22:35

0

https://www.google.com/search?q=clr+c…

oh wow. soon as i get back to pasadena i'm doing this to my truck.

dogisbadob > Rev Hang Slows My Roll 03/04/2014 at 22:40

0

Deathcool!

Rev Hang Slows My Roll > dogisbadob 03/04/2014 at 22:49

1

probably that or straight tap water. Previous owners are the bane of my existence...

Rev Hang Slows My Roll > puddler 03/04/2014 at 23:02

0

I dont know about this. CLR is highly corrosive to Aluminum, copper and brass which is what the majority of my cooling system and sensors is made of.

puddler > Rev Hang Slows My Roll 03/04/2014 at 23:04

0

very good point. my junk is iron. but aluminum makes white rust, copper makes green rust, and brass...i dunno, but you had brown rust.

Rev Hang Slows My Roll > puddler 03/04/2014 at 23:15

0

the block is iron i beleive so its probably the water sleeve in the block making all the rust.

puddler > Rev Hang Slows My Roll 03/04/2014 at 23:27

0

i read it's not too bad once diluted.

http://www.jelmar.com/archives/tips-…

but you've got 2 min's.