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  1. #1
    Veteran Member
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    Nov 2004
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    1,157

    Default Cleaning radiator

    Just wondering how ya'all clean out your radiator
    took the grill cove off and it was proper clogged up. Took the air line to it and this did well. Still though there are bits deep inside the fins that the air wont blow out.
    not really sure that taking the pressure washer to it is a good idea. whats the correct method?
    BigAl, youre a radiator specialist whats your method?
    Also in a past post someone said they had a great method but didnt say what it was [img]/forums/images/graemlins/shocked.gif[/img]
    thanks

  2. #2

    Join Date
    Dec 2003
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    579
    Location
    California , Idaho and a little island in Panama
    Tractor
    Kioti DK45TLB

    Default Re: Cleaning radiator

    Hi Mith,
    I always tell people to try and air blow the radiator from the FAN side and not the GRILL side . Sometimes if you blow from the Grill side you end up packing the dirt and debris deeper into the fins .Some tractors "pull air" through the "grill side" to the "fan side" and some tractors in high dust situations "push air" from the engine compartment back out through to the grill side .You see this "pusher style" in grain harvesting tractors and so forth . Most CUT's that I know have the "puller type system". One poster said he bought a cheap flexible air gun so he could get into the fan side better . After doing this I would rinse the radiator from both sides until the water runs clean as it passes through the fins .Make sure you clean the area where the tanks attach to the fins "real well ". For some reason ,many people seem to miss this area and the dirt just lays in there and starts creating all sorts of problems . If all this does not help , and you "KNOW" the radiator is the problem ,you have two solutions .
    1. Take the radiator out and to a Radiator Shop and have them "Flow Check" it for proper GPM flow ,test for leaks, and then if it checks out "OK" internally have a"BOIL OUT" service performed on it to clean the outside . If the inside of the radiator shows a cloggage in the " GPM Flow Check" and "if" the radiator can handle a "ROD OUT service " than I would go that way .This will get the radiator back to 100% cooling . I say "IF" because every time a radiator is opened up and cleaned , it weakens the radiator a little more .If it has been "RODDED OUT" more than once then it is best to get a new core installed and save the cost of a rod out .
    2. If the Radiator is clean and you still have a cooling problem and "KNOW" it is the fault of the radiator's inability to supply enough cooling and not some other engine problem ,I would have a new "core" installed . For many, many years most European as well as U.S. tractor makers used a "J" core style on their radiators . Very tough core with big inline tubes,straight fins design for better external cleaning . Asian tractor makers used a automotive style core which cooled better in less space ,plugged up much quicker and did not stand up as well . Now there are all kinds of industrial cores to choose from that incorporate both designs . I would go to a "stagger tude, 12 fins per inch industrial design core . If you have marginal cooling with your existing radiator ,this is the way to go . You can add anywhere from 20% to 40 % better cooling in the same amount of space that your old style core used !
    There was quite a discussion on cooling and cleaning a radiator about two months ago on TBN with a gal who was also experiencing a heating problem . You can do a search and I bet it would come up .
    Big Al

  3. #3
    Veteran Member chim's Avatar
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    Apr 2002
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    1,787
    Location
    Lancaster County, PA
    Tractor
    Kubota L3200, Ford 1210

    Default Re: Cleaning radiator

    Here's one solution that worked for me......................chim

    Radiator Fin Blower

  4. #4
    Veteran Member
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    Nov 2004
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    1,157

    Default Re: Cleaning radiator

    Al, i dont think the raditor itself is clogged up, its just that after i did my best wiht the blow gun there were still bits left deep inside the fins and i couldnt blow them out with the air blower.
    worryingly i went ouside to check an the tractor was totally frozen up. the water in the cooling system was just starting to get icy [img]/forums/images/graemlins/crazy.gif[/img] [img]/forums/images/graemlins/frown.gif[/img] [img]/forums/images/graemlins/frown.gif[/img]. started her up and thawed her out and now shes in the garage which hopefully wont fall below freezing. im really beginning to hate water cooling [img]/forums/images/graemlins/frown.gif[/img]

    chim your idea looks good, might make one up for next time. the problem i have at the moment is the air isnt powerful enough to get the chuff out.
    i have searched on 'radiator' 'cooling' ect but havent found it yet
    thanks

  5. #5

    Join Date
    Dec 2003
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    579
    Location
    California , Idaho and a little island in Panama
    Tractor
    Kioti DK45TLB

    Default Re: Cleaning radiator

    Hey Mith !!!
    Get some antifreeze in that radiator !!!!!! That is critically important !!!! If that radiator and engine freeze up ,your troubles are just beginning !!!!
    Big Al

  6. #6

    Join Date
    Dec 2003
    Posts
    579
    Location
    California , Idaho and a little island in Panama
    Tractor
    Kioti DK45TLB

    Default Re: Cleaning radiator

    Here is the post I was talking about : " Overheating " I don't know how to send it as a link ,so you should be able to type in OVERHEATING and find it .
    Big Al


  7. #7
    Elite Member
    Join Date
    Mar 2002
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    3,420

    Default Re: Cleaning radiator

    I don't know that there is a correct method, but what works is a garden hose with a standard knozzle. Blow with high pressure through the radiator from the inside to the outside.
    If it's clogged internally, a reverse flush might work. Unhook the upper rad hose from the radiator, run the garden hose into the radiator hose, seal off with rags and run water through til clean water comes out the fill tube. (IF there were a thermostat you would have to remove it.) This flushes the gunk out of the block and radiator the direction it came in. Then, there is always the radiator shop.

  8. #8
    Veteran Member
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    Nov 2004
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    Default Re: Cleaning radiator

    thanks for your suggestions all, i searched aga9n fro overheating and found loads Before i had it set on posts newr than one week, DUH...
    im gunna flush out the block radiator and fill with a 70/30 mix water to antifreeze, hoping this will be good down to -10ish degrees centigrade.
    i cant see any leaks so hopefully all was ok, it wasnt totally frozen up, and there was some antifreeze in it so i hope thats good enough. its now in a garage that shouldnt fall into the freezing temps.
    im still not seeing how i claen the bits deep within the radiator fins apart from blasting it with air/water as this doenst seem to move them no matter which way i blast it.
    thanks all

  9. #9

    Join Date
    Aug 2002
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    7,386
    Location
    North East CT
    Tractor
    2003 Kubota BX-22

    Default Re: Cleaning radiator

    The optimum solution of anti freeze & water is 50/50 for both cooling and for frost protection. More will be detrimental and less will result in a possible freeze condition. A thermostat is a must for the engine to operate at its maximum efficiency. Removing the thermostat for summer use is the wrong thing to do. It will keep the engine from coming to operating temperature quickly. Also make certain that the fan belt is properly tensioned so the radiator fan blade is working to its proper efficiency. A slipping fan blade pulley will cause over heat problems. If the radiator is clogged with bugs, then dish-washing soap and a soft bristle brush will help to loosen them and then flush with a stream of water. Will also help in loosening dirt that is a result of dusty fields. A clean radiator is a happy radiator... [img]/forums/images/graemlins/grin.gif[/img]Junk...

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