Register now to get rid of these ads!

Technical maybe a dumb question?

Discussion in 'The Hokey Ass Message Board' started by flatheadgary, Jul 17, 2020.

  1. flatheadgary
    Joined: Jul 17, 2007
    Posts: 845

    flatheadgary
    Member
    from boron,ca

    i have had this fan for a long time and i was going to mount it but i can't remember how it goes on. the first pic is the fan and the second and third pics are the direction of the curve when mounted. click on the pic for bigger pic. any help?
     

    Attached Files:

  2. Are there no small scratches or imprints from the tightening of the nuts ? That would be to the outside and the inside mounting surface should be clean. Otherwise small paint discrepencies.
     
  3. harpo1313
    Joined: Jan 4, 2008
    Posts: 2,184

    harpo1313
    Member
    from wareham,ma

    yes , first pic is the face.
     
    squirrel and pitman like this.
  4. squirrel
    Joined: Sep 23, 2004
    Posts: 48,656

    squirrel
    Member

    concave side goes to the back...

    fan.JPG
     

  5. jimmy six
    Joined: Mar 21, 2006
    Posts: 8,996

    jimmy six
    Member

    Rivet heads to the front. Makes sure the hole is snug on the extension or water pump.
     
    hotrodjack33 and alanp561 like this.
  6. 41rodderz
    Joined: Sep 27, 2010
    Posts: 5,398

    41rodderz
    Member
    from Oregon

    I expected a few different comments than that from squirrel . :)
     
    alanp561 likes this.
  7. squirrel
    Joined: Sep 23, 2004
    Posts: 48,656

    squirrel
    Member

    I was trying to keep it from being confusing...
     
  8. Half of Bernoulli's law.
     
    hotrodjack33 likes this.
  9. flatheadgary
    Joined: Jul 17, 2007
    Posts: 845

    flatheadgary
    Member
    from boron,ca

    thanks for the replies. no, there are no markings or scratches. must not have been used much. at least now i know. thanks again.
     
  10. blowby
    Joined: Dec 27, 2012
    Posts: 7,488

    blowby
    Member
    from Nicasio Ca

    Now that we know which way it goes, what is the purpose of the curved ends?
     
    hotrodjack33 likes this.
  11. squirrel
    Joined: Sep 23, 2004
    Posts: 48,656

    squirrel
    Member

    makes the blades a little more efficient...something about reducing the vortex at the end of the blades?
     
    hotrodjack33 likes this.
  12. I read something along these lines as well


    Sent from my iPhone using H.A.M.B.
     
  13. hotrodjack33
    Joined: Aug 19, 2019
    Posts: 2,339

    hotrodjack33
    ALLIANCE MEMBER

    I had a fan with bent ends like that once...mostly because of the front crossmember. After about 20 minutes it did quiet down though:p Problem solved:D
     
    big duece likes this.
  14. Exactly. A fan is nothing more than an air foil. The curved ends keeps high pressure (engine side in your case) from invading low pressure side (radiator side). In other words hot air exiting from cooling fan has less of a chance to become reintroduced into face of the fan.
    [​IMG]
     
    squirrel and blowby like this.

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.