do you have or add a coolant expansion tank?

Early C Bodies - The Slab Side Years

  1. mathiew

    mathiew New Member

    Messages:
    9
    Likes Received:
    0
    Joined:
    Oct 19, 2017
    Location:
    Canada
    I just wondering if it's a good idea to add an expansion chamber or coolant catch can to my stock radiator?
     
  2. 78Brougham

    78Brougham Senior Member

    Messages:
    2,317
    Likes Received:
    912
    Joined:
    Nov 10, 2013
    Location:
    Wellsboro, PA
    I did on my 67 Imperial. Just rerouted the hose to an inconspicuous plastic bottle near the battery. I found that after a jaunt at 70 mph and a quick shutdown, she would piddle just a tad. Not much, but embarrassing non the less.
     
    • Agree Agree x 1
  3. 300rag

    300rag Old Man with a Hat

    My Photo Garage
    Messages:
    7,041
    Likes Received:
    5,236
    Joined:
    Dec 4, 2010
    Location:
    Carstairs, Alberta, Canada
    I installed one in my 65. I used an overflow container from an early 80's D100.

    upload_2017-12-5_18-18-18.jpeg

    underhood 005.jpg
     
    • Like Like x 1
  4. polara71

    polara71 Old Man with a Hat

    Messages:
    34,749
    Likes Received:
    5,212
    Joined:
    Nov 16, 2010
    Location:
    New Jersey
    The original owner of my 70 installed one many many years ago. It works great
     
    • Agree Agree x 1
  5. Davea Lux

    Davea Lux Well-Known Member

    My Photo Garage
    Messages:
    532
    Likes Received:
    124
    Joined:
    Mar 27, 2017
    Location:
    Cornelius Or
    If your coolant level is correct and everything is working as it should, you probably are not going to lose much coolant. This is the kind of addition that certainly won't hurt anything unless of course you are building a show car, in that case leave it stock.

    Dave
     
  6. CBODY67

    CBODY67 Well-Known Member

    Messages:
    634
    Likes Received:
    137
    Joined:
    Mar 27, 2011
    The coolant recovery systems are allegedly supposed to have a "special cap" for the radiator, one that'll allow coolant to be drawn back into the radiator as it cools. But I think most now have been changed to that design.

    Many drag racing rules require some sort of "catch can" to catch coolant overflows, so they won't get onto the racing surface. Not sure if a coolant recovery system might work for that, but has to be better than some of the catch cans I've seen on sale.

    Try to keep the radiator-to-tank hose elevation such that air bubbled won't be in a "high spot".

    CBODY67
     
  7. Big_John

    Big_John Old Man with a Hat

    Messages:
    7,971
    Likes Received:
    3,450
    Joined:
    May 21, 2013
    Location:
    Marcellus, NY
    I like my car to mark its territory.
     
    • Like Like x 5
  8. Yatzee

    Yatzee Active Member

    Messages:
    403
    Likes Received:
    145
    Joined:
    Aug 3, 2012
    Location:
    St Thomas, Ontario
    Conventional coolant expands 5 to 6% when hot. If you don't have an expansion tank the first thing you notice is that the coolant level in the top tank of the rad is slightly down when cold. Not so with an expansion tank. The truth is, any air in or about a cooling system is not good.
     
    • Agree Agree x 1
  9. traintech55

    traintech55 Senior Member

    Messages:
    2,222
    Likes Received:
    924
    Joined:
    Jul 23, 2015
    Location:
    Hammond, IN.
    Here is one to thinks about, antifreeze is highly poisonous to cats, and dogs. They just love the sweet smell of the stuff.
     
    • Like Like x 2
    • Agree Agree x 1
  10. CanCritter

    CanCritter Senior Member

    My Photo Garage
    Messages:
    3,852
    Likes Received:
    2,418
    Joined:
    Apr 9, 2014
    Location:
    alberta
  11. jct

    jct Well-Known Member

    Messages:
    741
    Likes Received:
    216
    Joined:
    Jun 11, 2015
    Location:
    indianapolis
    How bout some pics on where you put your catch cans at? I tried to put one in my 68 newport but i haven't found a spot yet
     
  12. 300rag

    300rag Old Man with a Hat

    My Photo Garage
    Messages:
    7,041
    Likes Received:
    5,236
    Joined:
    Dec 4, 2010
    Location:
    Carstairs, Alberta, Canada
    If you don't have AC, the spot next to the horns works well

    underhood-005-jpg.jpg
     
    • Like Like x 1
  13. MarPar

    MarPar Senior Member

    Messages:
    2,305
    Likes Received:
    1,663
    Joined:
    Apr 22, 2015
    Location:
    Under Way
    my GTX...old Mobil1 oil bottle (thoroughly rinsed out of course :rolleyes:)

    DSC03767.JPG
     
    • Like Like x 2
  14. Dobalovr

    Dobalovr Senior Member

    My Photo Garage
    Messages:
    3,193
    Likes Received:
    2,030
    Joined:
    Sep 3, 2015
    Location:
    Calgary Alberta
    • Like Like x 1
    • Thanks! Thanks! x 1
  15. Snotty

    Snotty Senior Member

    Messages:
    1,830
    Likes Received:
    462
    Joined:
    Aug 18, 2015
    Location:
    Chico, California
    You are correct, and yes they will.
     
  16. MrMoparCHP

    MrMoparCHP Senior Member

    Messages:
    3,411
    Likes Received:
    1,601
    Joined:
    Aug 9, 2013
    Location:
    Lompoc, CA
    My CHP car has a Cadillac bottle on it, the CHP added them as needed. It was mounted behind the headlight, tight fit but it is there.


    Alan

    2016-05-08_006.jpg
     
  17. Samplingman

    Samplingman Senior Member

    Messages:
    3,407
    Likes Received:
    1,427
    Joined:
    Apr 18, 2012
    Location:
    South Jersey
    Anything will do. Here is the farm boy fix:

    BAF900A7-071B-406C-A64D-BD1C6F672C92.jpeg

    I plan on using the one from my ‘73 New Yorker.

    60294C44-6C1F-48A8-AF38-CF30E9F6BF74.jpeg 6F43F79D-4641-4CCA-B098-548368C4230F.jpeg
     
    • Like Like x 1
  18. 78Brougham

    78Brougham Senior Member

    Messages:
    2,317
    Likes Received:
    912
    Joined:
    Nov 10, 2013
    Location:
    Wellsboro, PA
    Sorry mines tucked away for the winter, all snugly
     
  19. polara71

    polara71 Old Man with a Hat

    Messages:
    34,749
    Likes Received:
    5,212
    Joined:
    Nov 16, 2010
    Location:
    New Jersey
    There is mine. It has been there since the car was almost new




    187134 2013 engine.JPG
     
    • Like Like x 1
  20. 78Brougham

    78Brougham Senior Member

    Messages:
    2,317
    Likes Received:
    912
    Joined:
    Nov 10, 2013
    Location:
    Wellsboro, PA
    Your car is almost new...from what I've seen:thumbsup:
     
    • Thanks! Thanks! x 1