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Raditor Overflow tank... how?

Discussion in 'The Garage' started by BozoWise, Sep 1, 2005.

  1. BozoWise

    BozoWise 1/2 ton status

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    It is my understanding that our raditor will expel fuid into the overflow tank when it expands and then suck it back when it contracts. I have lost my factory tank due to narrowing the front and found some on summit. Part number SUM-G1476. I saw this same one mounted on some other members rides. Couldn't find it on a search now that I need it.

    My question is do you mount a hose inside this piece to go to the bottom of the tank so it can suck fluid back out or is there another tank for the reciculate that isn't going to break me $-wise.

    Heck I even thought of just building one from pvc :doah:
     
  2. 1979jimmy350

    1979jimmy350 1/2 ton status

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    you do not need a hose running to the inside just have the connection to the raditior at the lowest part on the overflow tank then when the raditior cools off and the fluid contracts it can suck fluid back into the raditior
     
  3. HarryH3

    HarryH3 1 ton status Author

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    Yep. The hose connects to a fitting at the bottom of the overflow tank.
     
  4. BozoWise

    BozoWise 1/2 ton status

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    Boy that was too easy. Great I will just connect it to the drain on summits piece. I must have had another brain fart on this one, they are getting more common as I get older.
     
  5. Burt4x4

    Burt4x4 3/4 ton status

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    One key point is to mount your overflow tank as high as you can in your engine bay. Keeps the air out of your cooling system :D
     
  6. adamforsythe

    adamforsythe 1/2 ton status

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    I am replacing my overflow tank next week. I am buying a summit overflow tank and I am going to mount it next to my rad on the Radiator Core Support. I will show pics when it is done.
    Thanks
    Adam
     
  7. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

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    Really? Then whats the top one for? Shouldn't the suction pull the fluid back out through the top? Then the bottom one is simply for draining excess fluid out if needed?
     
  8. colbystephens

    colbystephens 1 ton status GMOTM Winner

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    FWIW, i saw at GI Joes the other day generic overflow tanks which would probably work for pretty cheap.
     
  9. skidpan

    skidpan 1/2 ton status

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    i just used a jack daniels bottle zip tied to my core support. it looks better than the stock one, and its was way more fun to install/empty...
     
  10. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

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    I have the Summit one and it would seem that it would work the same as a JD bottle, hose comes in at the top?
     
  11. nemesis_pyros

    nemesis_pyros 1/2 ton status

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    I have a pepsi bottle with the hose through the cap. It works ok and looks horrible, but ya it should pull fluid from the lowest part of the "tank". Whether that is a hose from the top going to the bottom or a fitting on the bottom of the "tank".
     
  12. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

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    I guess so, just looked at a few of my other rides, and it connects from the bottom, I haven't had mine stock for years and didn't remember.
     
  13. HarryH3

    HarryH3 1 ton status Author

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    Some have a tube that goes down through the cap and reaches to the bottom of the tank. That type usually doesn't have a fitting at the bottom at all. All of my GM junk just has a single fitting, at the bottom of the tank.
     
  14. sandawgk5

    sandawgk5 3/4 ton status

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    I bought a large "overflow" tank kit from Kragen for about $13. It came with the bracket, tank, and hose to connect to the radiator. It had a connection at the top and the bottom but no valves. I connected the radiator to the bottom of the tank.You can put a piecec of hose on the upper connection so when the tank overflows it will blow down on the ground and not all over the engine compartment.

    I will go outside and get some pictures of how mine is mounted.

    Ira
     
  15. sandawgk5

    sandawgk5 3/4 ton status

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    Here is how mine is mounted. As you can see from the pics I had to move mine due to not having inner fenders anymore.:D

    tank4.JPG

    tank1.JPG

    tank2.JPG

    tank3.JPG

    I have not driven her in like a month due to being out of state apparently I need to add some water:doah: .


    Ira

    tank4.JPG

    tank1.JPG

    tank2.JPG

    tank3.JPG
     
  16. colbystephens

    colbystephens 1 ton status GMOTM Winner

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    did you construct that bracket, or is that what came with a kit?
     
  17. sandawgk5

    sandawgk5 3/4 ton status

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    It came with the kit. It actually snaps around the tank and locks it into the bracket.

    Ira
     
  18. colbystephens

    colbystephens 1 ton status GMOTM Winner

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    i like that.
     
  19. sandawgk5

    sandawgk5 3/4 ton status

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