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Thread: Radiator leak.

  1. #1
    Hooligan
    Join Date
    Sep 2017
    Location
    New Brunswick, Canada

    Radiator leak.

    So this happened today. Radiator started leaking out of the left side. Oddly, when I level the bike off the side stand it stops. It only leaks when it’s on the side stand and, obviously, while running. Any thoughts?
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    I found a used radiator locally for a really good price. Anything I need to do to it before installing? Flush? Pressure test? Etc?

    Any and all suggestions are appreciated.
    Mike
    #10152

  2. #2
    2009 Hooligan of the year
    Join Date
    Sep 2001
    Location
    Austin, TX

    Re: Radiator leak.

    When you install the replacement radiator, make sure there is no gap between the mounting tabs and the mounting point. If there is, use washer(s) to shim the gap to prevent bending load on the tab at the top of the radiator.

    Regarding radiator prep, never hurts to inspect the inside to make sure it's nice and clean. A good flushing with water would also help ensure there's nothing in there before putting into operation.

    As for the odd leak, sounds like the radiator is somehow being twisted just slightly and allowing a very small crack to open up. Maybe something pushing against it when the handlebars are full lock.
    Last edited by zrx24; 07-10-2019 at 10:07 AM.

  3. #3
    BadAss Hooligan
    Join Date
    Aug 2001
    Location
    Christmas, FL

    Re: Radiator leak.

    yes what he said, there should not be any binding, ideally you should have little friction when installing or removing the 4 frame mounting bolts without tools(fingers), also check/replace the upper rubber gromets, fairly cheap or at local hwd store, they help prevent future crack failures at upper mounting brackets.

    Orig. owner, 99 ZRX, 61k+
    ZX11cams,pistons
    Stick coils, DIM Harness
    Cam degree 105 int.,107 exh.
    Fact. 1.0 w/Ti.,108 MJ
    Airbox w/ K+N
    Full Akro
    OEM ign. +5 Adv
    Dyno 131.7 HP/80.4 TQ.
    Ohlins RS, Race tech fork
    Fork brace+Steering damper




    "TO BOLDLY GO WHERE NO MAN HAS GONE BEFORE" IS EASY, RETURNING IS THE REAL CHALLENGE.

    " WHEN YOU OWN A CHINESE SCOOTER, ALL CHINESE SPARE PARTS ARE OEM QUALITY "

  4. #4
    Satan's Donkey
    Join Date
    Sep 2001
    Location
    Vt.

    Re: Radiator leak.

    Then send your leaking radiator to Mylers for a quality repair.
    -Jake

    Rape is no laughing matter.
    Unless you're raping a clown.

    ZRXOA #2995



    Originally posted by Ca Pete
    "A helmet may save your life, but if you are not wearing the rest of your gear, you may wish it hadn't."

  5. #5
    Thinking, So You Don't Have To
    Join Date
    Aug 2007
    Location
    The Inland Empire (not as ominous as it sounds)

    Re: Radiator leak.

    Delkevic, if you can still get one
    “Is life so dear, or peace so sweet, as to be purchased at the price of chains and slavery? Forbid it, Almighty God! I know not what course others may take; but as for me, give me liberty or give me death!” Patrick Henry, American patriot.

    "Red is faster of course" 8/5/19 Ca Pete acknowledges the obvious.

  6. #6
    Devils’ Advocate
    Join Date
    Aug 2001
    Location
    Large and Prickley

    Re: Radiator leak.

    That looks like the hose behind the header let go....

    ooooooooooooo

    WARNING: ELS Products MAY CONTAIN, or be Made With, Patented Parts, Tools, Components and/or Apparati. Manufacturing Facility DOES Contain Nuts.

    PayPal to: Pete@Hyper-Formance.com
    Or: www.PayPal.me/KWICK
    Pete Aronson
    315 West Elliot Road
    Suites 107-487
    Tempe, AZ 85284
    602-397-4869.

  7. #7
    BadAss Hooligan
    Join Date
    Aug 2001
    Location
    Christmas, FL

    Re: Radiator leak.

    Quote Originally Posted by Rickrides View Post
    Delkevic, if you can still get one
    I don't think they don't do Rads anymore ??, I had a replacement Delkevic for well over 10 years ago, finally installed aprox. 5 years ago, NP so far.
    My oem developed similar leak as OP after aprox.15 years, no complaints here.

    Orig. owner, 99 ZRX, 61k+
    ZX11cams,pistons
    Stick coils, DIM Harness
    Cam degree 105 int.,107 exh.
    Fact. 1.0 w/Ti.,108 MJ
    Airbox w/ K+N
    Full Akro
    OEM ign. +5 Adv
    Dyno 131.7 HP/80.4 TQ.
    Ohlins RS, Race tech fork
    Fork brace+Steering damper




    "TO BOLDLY GO WHERE NO MAN HAS GONE BEFORE" IS EASY, RETURNING IS THE REAL CHALLENGE.

    " WHEN YOU OWN A CHINESE SCOOTER, ALL CHINESE SPARE PARTS ARE OEM QUALITY "

  8. #8
    Hooligan
    Join Date
    Sep 2017
    Location
    New Brunswick, Canada

    Re: Radiator leak.

    Quote Originally Posted by KWICK View Post
    That looks like the hose behind the header let go....
    There is no dampness on the back of the rad. It’s all at the front. I haven’t taken it off mind you, so I might find something different when I do. I got a replacement rad today that looks to be in terrific condition. I will know more tomorrow when I take things apart.
    Mike
    #10152

  9. #9
    Hooligan
    Join Date
    Sep 2017
    Location
    New Brunswick, Canada

    Re: Radiator leak.

    Replacement rad is installed and leak free. I killed two birds with one stone here too. It turns out both bottom fan supports were broken. I have been chasing a buzzing noise and assume this was the culprit. I reused my fan as it was cleaner and ran quieter when bench tested. Rad and surrounding area looks new again.
    Mike
    #10152

  10. #10
    BadAss Hooligan
    Join Date
    Aug 2007
    Location
    '01 R Toronto

    Re: Radiator leak.

    Quote Originally Posted by McRex View Post
    Replacement rad is installed and leak free. I killed two birds with one stone here too. It turns out both bottom fan supports were broken. I have been chasing a buzzing noise and assume this was the culprit. I reused my fan as it was cleaner and ran quieter when bench tested. Rad and surrounding area looks new again.
    no buzzing for me LOL ... Spring last year first ride

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    never drop your bike sober, it hurts too much!

  11. #11
    Devils’ Advocate
    Join Date
    Aug 2001
    Location
    Large and Prickley

    Re: Radiator leak.

    The broke bracket caused your leak

    ooooooooooooo

    WARNING: ELS Products MAY CONTAIN, or be Made With, Patented Parts, Tools, Components and/or Apparati. Manufacturing Facility DOES Contain Nuts.

    PayPal to: Pete@Hyper-Formance.com
    Or: www.PayPal.me/KWICK
    Pete Aronson
    315 West Elliot Road
    Suites 107-487
    Tempe, AZ 85284
    602-397-4869.

  12. #12
    Hooligan
    Join Date
    Sep 2017
    Location
    New Brunswick, Canada

    Re: Radiator leak.

    Quote Originally Posted by KWICK View Post
    The broke bracket caused your leak
    Because it allowed the rad to “sag” or “deform”?

    The break point on my bike was where the two lower brackets connect to the fan shroud itself. The mounting tabs on the lower part of the rad were intact and looked fine.
    Mike
    #10152

  13. #13
    BadAss Hooligan
    Join Date
    Aug 2007
    Location
    '01 R Toronto

    Re: Radiator leak.

    fan shroud cuts into the back of the rad
    never drop your bike sober, it hurts too much!

  14. #14
    Hooligan
    Join Date
    Sep 2017
    Location
    New Brunswick, Canada

    Re: Radiator leak.

    Quote Originally Posted by jefflthomas View Post
    fan shroud cuts into the back of the rad
    My leak appeared to be top right side. Left when viewed from front. The fan shroud had definitely done a number on the back of the rad though. So it wasn’t long before that let go too. My bike also still had the rubber diamond installed which I understand can lead to problems.
    Mike
    #10152

  15. #15
    BadAss Hooligan
    Join Date
    Aug 2007
    Location
    '01 R Toronto

    Re: Radiator leak.

    never had trouble with the diamond shaped grommet

    i use my power washer on low pressure soap mode on the rad & suds it up lots then gently rinse any grit away

    i move it to different locations occasionally too

    i like the way it holds the screen away from the rad to suck up impacts

    as a matter of fact i have 2 of them on the new rad to spread the load
    never drop your bike sober, it hurts too much!

  16. #16
    BadAss Hooligan
    Join Date
    Aug 2004
    Location
    San Jose, CA

    Re: Radiator leak.

    zrx fan brackets are notorious for breaking off. KWICK has a nice solution for fending these off with his suzuki flat-motor fan/stainless steel bracket combo.

  17. #17
    Devils’ Advocate
    Join Date
    Aug 2001
    Location
    Large and Prickley

    Re: Radiator leak.

    Quote Originally Posted by benbaboon View Post
    zrx fan brackets are notorious for breaking off. KWICK has a nice solution for fending these off with his suzuki flat-motor fan/stainless steel bracket combo.
    Thanks Ben!

    http://www.kwickstand.net/Hyper-Form...WICK_Kool.html

    ooooooooooooo

    WARNING: ELS Products MAY CONTAIN, or be Made With, Patented Parts, Tools, Components and/or Apparati. Manufacturing Facility DOES Contain Nuts.

    PayPal to: Pete@Hyper-Formance.com
    Or: www.PayPal.me/KWICK
    Pete Aronson
    315 West Elliot Road
    Suites 107-487
    Tempe, AZ 85284
    602-397-4869.

  18. #18
    BadAss Hooligan
    Join Date
    Aug 2007
    Location
    '01 R Toronto

    Re: Radiator leak.

    Quote Originally Posted by benbaboon View Post
    zrx fan brackets are notorious for breaking off. KWICK has a nice solution for fending these off with his suzuki flat-motor fan/stainless steel bracket combo.
    it's probably lighter too eh?
    never drop your bike sober, it hurts too much!

  19. #19
    Devils’ Advocate
    Join Date
    Aug 2001
    Location
    Large and Prickley

    Re: Radiator leak.

    Quote Originally Posted by jefflthomas View Post
    it's probably lighter too eh?
    Eh
    ...and they suck more air.

    ooooooooooooo

    WARNING: ELS Products MAY CONTAIN, or be Made With, Patented Parts, Tools, Components and/or Apparati. Manufacturing Facility DOES Contain Nuts.

    PayPal to: Pete@Hyper-Formance.com
    Or: www.PayPal.me/KWICK
    Pete Aronson
    315 West Elliot Road
    Suites 107-487
    Tempe, AZ 85284
    602-397-4869.

  20. #20
    BadAss Hooligan
    Join Date
    Aug 2004
    Location
    San Jose, CA

    Re: Radiator leak.

    Quote Originally Posted by KWICK View Post
    Thank yourself! it's a good product!

    Quote Originally Posted by jefflthomas View Post
    it's probably lighter too eh?
    It is. It also doesn't rust (and thus break like my original one did) and sold quickly at 70% of original cost when I parted my bike.


 

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