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Tractor Talk Discussion Forum

Lime or? build up in radiator

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Frank

09-11-2003 19:59:18




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My pickup truck started heating and throwing antifreeze out the overflow. Opened rad cap and noticed some cores are pugged. Before I take it off and take it to a rad shop is there any thing that will remove this . Would CLR work? Thanks




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Ben in KY

09-12-2003 08:24:14




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 Re: Lime or? build up in radiator in reply to Frank, 09-11-2003 19:59:18  
I have had pretty good results with CLR. I take the radiator off, rinse it out good then lay it face down and fill it with a mix of clr and water, about 25% CLR. Let it set for 12 hours or so shaking it a bit accasionally, and flush both ways with water. Inspect and do again if necessary.
No guarantees, but this method has worked for me.



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Ray,IN

09-12-2003 19:12:00




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 Re: Re: Lime or? build up in radiator in reply to Ben in KY, 09-12-2003 08:24:14  
I agree with Ben. Remove the radiator and then clean it out. A friend of mine owns a large radiator shop in a nearby city, and he told me that using a cleaner while the radiator is still in use/on the vehicle is a bad policy. The cleaner will flow down into the tubes and remain there if the stoppage does'nt clear out(a new radiator core is $600 for my 1932 Chevrolet). Then the chemical(s) will eat through the tube eventually because there is no other way out. A clean and rod process on a radiator is about 1/2 the cost of a new core, but you're getting a guarantee with the new core the old core may fail again next week.

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JOHN (LA)

09-12-2003 06:53:54




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 Re: Lime or? build up in radiator in reply to Frank, 09-11-2003 19:59:18  
YES LIKE "ATW"SAID TRY A RAD FLUSH. YOU ARE NOT LOSING ANYTHING IF IT DOES NOT WORK AS YOU ARE CLEANING THE BLOCK ALSO. WHEN YOU ARE FINISHED YOU CAN RUN TILL HOT TURN OFF MOTOR THEN FEEL ON RAD. WITH YOUR HAND FOR COOL SPOTS. (COOL SPOTS ARE CLOGED SPOTS)
IF IT DOES NOT WORK HAVE BOILED OUT. ALL SO HOW IS THE WATER COMING OUT. IS IT JUST A OUZE OR SLOW STREAM. OR CAN YOU HEAR A NOISE THAT SOUNDS LIKE A WATER KNOCK.(SUCH AS PIPES IN A OLD HOUSE WHEN YOU TURN OFF THE FACET) OR TAKE CAP OFF AND RUN MOTOR DOES WATER SHOOT OUT OF HOLE THEN GO BACK DOWN. THESE ARE ALL SIGNS THAT YOUR THERMOSTAT IS BAD.

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stan

09-12-2003 01:42:43




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 Re: Lime or? build up in radiator in reply to Frank, 09-11-2003 19:59:18  
Should take it to a rad shop and have it boiled out. Then when it is real clean they can tell you you need a new one. I have taken the top off and pushed a thin piece of metal throught all the tubes,(a dip stick works real good) This takes a lot of time and patience, some thing I dont always have a lot of.



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ATW/WA

09-11-2003 20:59:03




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 Re: Lime or? build up in radiator in reply to Frank, 09-11-2003 19:59:18  
Frank, Try an automotive radiator flush, rinse and neutralizer before you have the radiator shop try it. It may take a couple of tries as the deposits will weaken the flush solution, but you will be cleaning the coolant passages of the block also.

When you have finished flushing, consider the source of the mineral deposits. We have hard water here,I always use distilled water for battery and radiator.

HTH ATW/WA

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