STUPID JEEP....Overheating!

Discussion in 'Flat Fender Tech' started by sammy, Jun 3, 2009.

  1. Jun 3, 2009
    sammy

    sammy Coca-Cola? Sponsor

    Albuquerque, NM
    Joined:
    Jul 1, 2007
    Messages:
    1,577
    I'm at a loss.... this Jeep will not stop boiling over. Electric fan now too, a permacool, moves a ton of air... NOPE. New water pump with the rebuild, NOPE. Runs 220 down the road with the fan on and cool air rushing in... get to a stop and PSHHHHHHHHHHHHHHHHHHHHHISLDFJ KSDJKFJGB everywhere... What do I do now? Rad cap is 7 lbs. Thanks.
     
  2. Jun 3, 2009
    1970CJ6

    1970CJ6 new mexico air

    rio rancho, new...
    Joined:
    Nov 29, 2005
    Messages:
    630
    If I remember from a picture you posted before, you were using one of those link belts.
    If you still are it is proboley slipping. The angle on the sides of the belt is what does the driving.
    Replace it with one made for you engine.

    Andrew
     
  3. Jun 3, 2009
    Bill F

    Bill F Finally running

    Hillsboro NH
    Joined:
    Sep 22, 2002
    Messages:
    543
    did you have your radatior boiled and rodded out? Is you cap new? On my m38 the radatior has not been touched but it still cools just fine.
     
  4. Jun 3, 2009
    uncamonkey

    uncamonkey Member

    Greeley CO
    Joined:
    Jun 2, 2009
    Messages:
    2,115
    Ugly thought, but, check for air bubbles coming up in rad, could be bad head gasket or a crack somewhere allowing combustion gasses to get into cooling system.
    Still a 134?
     
  5. Jun 3, 2009
    jeep2003

    jeep2003 Active Member

    vestal ny
    Joined:
    May 30, 2006
    Messages:
    1,304
    have you tried changing out the thermostat ? even if it was new when rebuilt it could have been bad from the start. Get the facotry tempurature one also. And if you play with different temp stats remember lower temperature doesnt always mean a cooler engine. The coolant needs to stay in the radiator to get cool.
     
  6. Jun 3, 2009
    Lifesgoodhere

    Lifesgoodhere Like 6 Jeeps isn't enough

    Staunton, Virginia
    Joined:
    Feb 14, 2009
    Messages:
    265
    I had the same problem until I replaced my thermostat. Boil the new one first to make sure it opens all the way.

    I have a 160 in my engine, and the engine likes running 175.
     
  7. Jun 3, 2009
    sammy

    sammy Coca-Cola? Sponsor

    Albuquerque, NM
    Joined:
    Jul 1, 2007
    Messages:
    1,577
    Andy, it's an electric fan now, but it could be the water pump. Hot rod friend Cletus looked at it and said put a lot of tension on the belt, which I did and it still boils. I will, however get a rubber belt now, thanks.
    The t-stat is new but replacing it may be a good idea. It's gotta work though because obviously it's getting to the radiator to boil out. The cap is new, recore in the radiator, i'm almost thinking a new aluminum radiator with 3 rows. The old cores in my rad were brittle and falling apart, the fins were half gone. What cap pressure should I be running anyway?
     
  8. Jun 3, 2009
    DanStew

    DanStew Incorrigible. Staff Member Sponsor

    Lexington, South...
    Joined:
    Sep 22, 2002
    Messages:
    4,033
    How is the timing on it?
     
  9. Jun 3, 2009
    sammy

    sammy Coca-Cola? Sponsor

    Albuquerque, NM
    Joined:
    Jul 1, 2007
    Messages:
    1,577
    Smack on... ignition points lined up on the flywheel
     
  10. Jun 3, 2009
    jeep2003

    jeep2003 Active Member

    vestal ny
    Joined:
    May 30, 2006
    Messages:
    1,304
    Just wanna say i think every tech thread title should begin with "STUPID JEEP!-" :)
     
  11. Jun 3, 2009
    sammy

    sammy Coca-Cola? Sponsor

    Albuquerque, NM
    Joined:
    Jul 1, 2007
    Messages:
    1,577
    lol
     
  12. Jun 3, 2009
    drexotic

    drexotic Happy now?!?!?

    San Diego
    Joined:
    Jan 7, 2007
    Messages:
    419
    I don't have any other (new) suggestions Sammy . . . Just want you to know I feel your pain!
     
  13. Jun 3, 2009
    sammy

    sammy Coca-Cola? Sponsor

    Albuquerque, NM
    Joined:
    Jul 1, 2007
    Messages:
    1,577
    Doc, did yours overheat as well?
    I've never been so frustrated with it... i spat on it when i walked away. After dieing while off roading with that cute girl and now this... ugh.

    Could itb e the lack of a shroud? I have the fan so it's right at the core though... My old fan was 4" away or so from the rad with no shroud
     
  14. Jun 4, 2009
    Walt Couch

    Walt Couch sidehill Cordele, Ga. Sponsor

    cordele, Ga.
    Joined:
    Mar 29, 2007
    Messages:
    4,993
    What about the direction of the fan? Is it pulling air or pushing?
     
  15. Jun 4, 2009
    sammy

    sammy Coca-Cola? Sponsor

    Albuquerque, NM
    Joined:
    Jul 1, 2007
    Messages:
    1,577
    it's on the back of the radiator (inside the bay) being a puller. But, it doesn't have a shroud so I'll fab one upp
     
  16. Jun 4, 2009
    blevisay

    blevisay Oh Noooooooooooooooo! Staff Member Sponsor

    Portland Tn.
    Joined:
    Sep 20, 2002
    Messages:
    3,293
    X2 on the air.
    You can drill a 1/8 in the T stat to let the air by pass.
     
  17. Jun 4, 2009
    sammy

    sammy Coca-Cola? Sponsor

    Albuquerque, NM
    Joined:
    Jul 1, 2007
    Messages:
    1,577
    where is this hole going to be located in the tstat...?
     
  18. Jun 4, 2009
    blevisay

    blevisay Oh Noooooooooooooooo! Staff Member Sponsor

    Portland Tn.
    Joined:
    Sep 20, 2002
    Messages:
    3,293
    Anywhere really.........as long as water can bypass........
     
  19. Jun 4, 2009
    sammy

    sammy Coca-Cola? Sponsor

    Albuquerque, NM
    Joined:
    Jul 1, 2007
    Messages:
    1,577
    Easy and done.
    Alright since I'm tired as heck and heading back out in a few after dinner, I'll ctrl c ctrl v from the local forum my discoveries of tonight
    "...As I drained it tonight the brown sludge that came from the engine petcock didn't look good at all, T stat was covered in it too... So was the last 1/8th of the radiator.
    I'm looking into flushing it for now and I'll make a shroud tomorrow..."
     
  20. Jun 5, 2009
    Andy4802

    Andy4802 Canadian Jeep junkie

    Hudson, Qc, Canada
    Joined:
    Jul 30, 2006
    Messages:
    410
    sounds like a clogged rad. u might want to think about replacing it anyway since you mentioned the fins are brittle?
    sludge in the rad + brittle fins... i think you have it pretty well narrowed down.
     

Share This Page

New Posts