Bobcat Radiator Question

Discussion in 'Heavy Equipment & Pavement' started by YellowDogSVC, Jan 6, 2011.

  1. YellowDogSVC

    YellowDogSVC LawnSite Gold Member
    from TX
    Posts: 3,758

    I have an s330 that appears to have sprung a small leak in the radiator. I haven't found the hole yet but I am suspecting either the radiator or an o ring.
    Does anyone know of a product that is SAFE that works like a stop leak that can buy me some time? I don't want a $600-800 repair if I can help it.
    I am not losing much coolant but since I mulch, the part of the radiator that gets wet clogs up with the cedar shavings debris that gets pulled in.

    Any good ideas? thanks in advance!
  2. Gravel Rat

    Gravel Rat LawnSite Fanatic
    Posts: 9,544

  3. dozerman21

    dozerman21 LawnSite Bronze Member
    Posts: 1,170

    I have some friends who are service techs and they don't like the Bars stuff, at least for vehicles.

    Is it too much trouble to take the radiator out yourself and have a radiator shop plug it? I did that to one of my old dozer once and that took care of it. If I remember right it was only around $125. It was a shop that specialized in heavy truck radiators.
  4. wanabe

    wanabe LawnSite Senior Member
    from So. IL
    Posts: 943

    Best thing to do is to have a pressure tester for coolant systems and pump it up real good and find where its leaking. I think you are looking at about $400 if you need a new radiator. Had a new one put in my T300.
  5. YellowDogSVC

    YellowDogSVC LawnSite Gold Member
    from TX
    Posts: 3,758

    radiators are expensive and install is a pita in bobcats.
  6. Gravel Rat

    Gravel Rat LawnSite Fanatic
    Posts: 9,544

    I would pressure test it to see where the leak is coming from because a rad seal won't seal all leaks.
  7. bobcat_ron

    bobcat_ron LawnSite Fanatic
    Posts: 10,101

    How about a raw egg?
  8. ksss

    ksss LawnSite Fanatic
    Posts: 7,129

    I have seen that on McGyver.

    I would pull it out and have a radiator shop test it and hopefully plug it, and hopefully preventing having to get a new one. I would rather fix it at home than in sage brush somewhere. You cant trust it this way and you don't want to cause any further problems.
  9. tallrick

    tallrick LawnSite Senior Member
    Posts: 682

    Raw egg fix is a hoax, and I have never seen any product that can stop a leak within the tubes. However, a leak at a seam can usually be stopped with a silicate formulation. Years ago I got a leak on my 843 from a branch that forced its way through the back door. The fix involved soldering three damaged tubes and stuffing serpentine fins inside. I am not sure if the S330 has a copper or aluminum radiator. When my 763 needed a radiator I made one up from tubes and fins, reusing the core ends. Bobcat charges outrageous prices for replacements.
  10. YellowDogSVC

    YellowDogSVC LawnSite Gold Member
    from TX
    Posts: 3,758

    I have had to replace a few radiators in that past. Bobcat's piss poor design through the K series necessitates a juggling act to get lift the radiators for cleaning (I miss CAT's radiator). the technicians have banged up my radiators, too, and caused the same leaks I did. I have found a few ways to safely lift them but I think I must have caused some damage. I have not had one leak without something poking in and I've owned about 12 or 13 machines since the mid 90's. If I have time today, I want to take it apart and find the leak but a I couldn't the other day. I has to be very minor because I'm not losing much coolant and it just leaves a wet spot on the filter I use to keep debris out. In the past, a worse leak blew coolant out the sides with the air flow.

    KSSS is right but I am trying to buy a little time.

    Another question, does anyone pressure wash their radiators? Is that asking for trouble? I have always used only air and a vacuum. (I want a new setup soon as maintenance has become tiresome when I mulch).

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