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best way to clean dirty heater core?

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crave_silence

Registered
Joined
Mar 14, 2002
Location
seattle, WA
hey all,

A while ago I took a stab at watercooling when I (and my offiicemates) had had enough of the whine of the glaciator. I pulled a heater core out of an old ford escort, and MAN was it dirty. Filled with all kinds of rusty water and gunk. I kept flushing it with water until the water ran clean, and hooked it up in the system. Omitting _many_ details and trials and tribulations, but everything worked just fine until the day the core accidentally took a fall, and on impact dislodged a ton more the rusty stuff to fill up my nice clean tubing.

I'd like to keep using this heater core, but need to find a much better way to clean it. I remember seeing an article on this here a long time ago, but it recommended soaking the entire core in some sort of hcl solution, 'found in many household cleaning products'. The only cleaning products I can find that list their ingredients are basic , not acidic.

So what's the best thing to do? Can I let it soak in a bucket of warm water and radiator flush? Can I put that stuff through my pump (eheim 1048) ? Are there better ways to go about this?

Thanks a lot for any input.

k
 

ButcherUK

Member
Joined
Nov 8, 2001
Location
York, UK
Acid flush is what I used... I used some kettle limescale removing stuff, it's acidic. Lemon juice / vinegar will also work to an extent.
 

f155mph

Member
Joined
Feb 21, 2001
You are better off getting a new one. Given a new core only cost around $18 at Autozone. The time you save and the risk of the old core leaking or clogging you the tubes will be worth then the money you spend on a new core. You can alway take it to a radiator place and have them flush it and coat the core. But I think it will cost more.
 

azhari

Member
Joined
Aug 12, 2001
Location
Texas
I wonder if you can use the engine cleaner stuff at the carwashes. You know those car wash places that you drive into, drop a couple of quarters, and choose what comes out of the power hose? Most of them have a setting for engine cleaner. I've used it before to clean the filters from a restaurant's kitchen vent. They weren't rusty though, just clogged with that greasy crap you get from all the cooking.
 

Pepsi

THIEF AND A TROLL -Silversinksam
Joined
Nov 1, 2001
Location
Twister City
You might also call a raditor repair shop and see what they would charge you to dip it. It can't be that much especially if you tell them what you are doing with it. Most people will bend over backwards to help. Sometimes the reactions you get are worth the cost of having work done. Have fun.
Stay Cool
Pepsi