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Melted fan trouble

Posted by too_genecide, Nov 7, 2018

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  1. too_genecide

    too_genecide Proven Member

    60
    8
    Joined Jan 26, 2013
    yuma, Arizona
    Is anybody else having trouble with melting fans? This the the second fan that has melted. First the oem fan with a 16g, then this with an hx35 with a bolt on bep .55. Any suggestions? I saw a member on here that put a blanket on his hx40 housing that I might copy.
    Just looking for other ideas.
    I suck at sheet metal work or I would be building a shroud but it looks like I might have to.
    Again looking for options that I haven't considered
     

    Attached Files:

    Street Build 899  0

    1995 Mitsubishi Eclipse GSX
    automatic · 2G DSM
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  2. ec17pse

    ec17pse Freelancer

    3,178
    1,097
    Joined Nov 1, 2008
    London, Europe
    I melted mine once i out a FMIC on with the stock T25. I noticed airflow restricted and that ment higher bay temps and melting fans, i kinda solved the issue by running another hest shield over the fan and a blanket for the turbo but the issue is doen to air flow to keep it from melting.

    Its weird as i never seen this issue arise before but it make sense to me once i knew the issue
     

    Road Race Build 7K  34

    1997 Mitsubishi Eclipse GST
    175 whp · 180.1 lb/ft · 2G DSM
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  3. luv2rallye

    luv2rallye DSM Wiseman

    7,421
    491
    Joined Jun 7, 2003
    Minneapolis, Minnesota
    Do you have the factory heat shields on the exhaust mani?
     

    2K  0

    1999 Mitsubishi Eclipse GST
    14.200 @ 95.000 · 2G DSM
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  4. ErikTande

    ErikTande Proven Member

    783
    180
    Joined Dec 17, 2012
    Centennial, Colorado
    When I melted a couple fans I figured out it was from exhaust leaks. Run some sea foam through the car and if it smokes around your exhaust manifold/turbo or anywhere in the engine bay, then you've got exhaust leaks.
     
    Last edited: Nov 8, 2018

    Street Build 448  1

    1997 Eagle Talon TSi AWD
    awd · manual · 2G DSM

    3K  0

    1990 Mitsubishi Eclipse GSX
    13.2 @ 105 · 1G DSM
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  5. chrysler kid

    chrysler kid Proven Member

    1,608
    383
    Joined Dec 20, 2002
    Mckinney, Texas
    Ditto, I sold my gst and the next owner burned the fans up with an exhaust leak. The eBay turbo bolts stretch super easily. After a few months and heat cycles they are able to blow out the turbo gasket

    Put all of your heat shields back on and then invest in arp turbo bolts
     

    1K  15

    1998 Mitsubishi Eclipse GST
    fwd · automatic · 2G DSM

    2K  12

    1996 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM

    1K  0

    1996 Mitsubishi Eclipse GST
    14.1 @ 97 · 2G DSM
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  6. too_genecide

    too_genecide Proven Member

    60
    8
    Joined Jan 26, 2013
    yuma, Arizona
    I have the heat shield for the stock exhaust manifold. 02 housing is aftermarket with no heat shield.

    There was an exhaust leak where the 02 housing meets the dp but the section of fan closest to the leak wasn't melted. The other fan flows enough air to keep it cool so I didn't notice right away.
    I think I'll try and find a blanket that works with the bolt on bep housing. And make some kind of heat shield.

    Thanks for the replys
     

    Street Build 899  0

    1995 Mitsubishi Eclipse GSX
    automatic · 2G DSM
    Loading...
  7. JPenny

    JPenny Proven Member

    87
    16
    Joined Feb 24, 2016
    Corpus Christi, Texas
    I've melted a fan the exact same way as you described with the o2/Down pipe leak. I'm sure your addressing the leak just wanted to throw my 2 cents.
     

    Street Build 2K  4

    1997 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
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  8. Vegas smith

    Vegas smith Proven Member

    2,336
    1,051
    Joined Dec 2, 2002
    Houston, Texas
    Also, see if PTP offers a bottom turbo blanket for it, although, they don't recommend turbo blankets for a bottom-mount setup like yours.
     

    Street Build 2K  10

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  9. Boomdeeze

    Boomdeeze Proven Member

    1,549
    220
    Joined Jul 5, 2009
    Independence, Minnesota
    I run a PTP bottom mount turbo blanket and it helped tremendously. You need to keep an eye on the turbo fittings to be sure they are not leaking in to the blanket, especially an oil leak! Other than that, they are great!
     

    Street Build 3K  1

    1997 Mitsubishi Eclipse GSX
    10.793 @ 128.98 · 2G DSM
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  10. too_genecide

    too_genecide Proven Member

    60
    8
    Joined Jan 26, 2013
    yuma, Arizona
    @chrysler kid do you know of kit/part numbers for o2 housing arp hardware? I know I'm being a lazy ass for not searching. Just wondering if you knew off the top of your head.
    I do have arp and extremepsi mls gasket for turbo to manifold.
    I ordered two o2 housing gaskets from extreme and I'm kicking around the idea of doubling them up. I don't know of an mls gasket for the o2 housing.
    I found an old thread where a member used a Subaru blanket from ptp for his hx40 bolt on housing.
    Are the bep bolt on housings the same outside dimensions?
     

    Street Build 899  0

    1995 Mitsubishi Eclipse GSX
    automatic · 2G DSM
    Loading...
  11. too_genecide

    too_genecide Proven Member

    60
    8
    Joined Jan 26, 2013
    yuma, Arizona
    I bought a ptp blanket, fixed the exhaust leak, and make a small heat shield for the fan motor.
    I hope this bullshit helps.
     

    Attached Files:

    Street Build 899  0

    1995 Mitsubishi Eclipse GSX
    automatic · 2G DSM
    Loading...
  12. ErikTande

    ErikTande Proven Member

    783
    180
    Joined Dec 17, 2012
    Centennial, Colorado
    That heat shield looks great!
     

    Street Build 448  1

    1997 Eagle Talon TSi AWD
    awd · manual · 2G DSM

    3K  0

    1990 Mitsubishi Eclipse GSX
    13.2 @ 105 · 1G DSM
    Loading...
    CrackedDSM likes this.
  13. too_genecide

    too_genecide Proven Member

    60
    8
    Joined Jan 26, 2013
    yuma, Arizona
    EricTande. Thank you sir.
    After a 4.5 hour drive the fan is ok but...
    I'm stuck on the side of the road with a broken cv axle. I'm waiting for the trailer to arrive.
    My destination was a 6 hour drive, didn't quite make it LOL.
     

    Street Build 899  0

    1995 Mitsubishi Eclipse GSX
    automatic · 2G DSM
    Loading...
  14. motomattx

    motomattx Proven Member

    1,424
    348
    Joined Dec 9, 2010
    wampum, Pennsylvania
    Thermal zero also makes a fine blanket!
     

    Drag Race Build 2K  13

    1995 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
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