Coolant leaking behind radiator cap?

Discussion in 'Modifications & DIY how-to' started by D_K, Dec 1, 2010.

  1. D_K

    D_K Member

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    So behind my radiator cap there is this cap/seal that is leaking dripping coolant, and at times it would squirt it out as shown in the picture.. don't know why. Is this piece replaceable? Subaru was telling me I needed a new radiator.. true or false?

    [​IMG]
    [​IMG]

    Thanks guys.
     
  2. Alex

    Alex Community Founder
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    Unless you can McGuyver a piece of gum over it, I vote that its time to replace it.
     
  3. Mike@TTR

    Mike@TTR Active Member

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    Think I would TRY a new cap first....worst case is it doesn't work and you are out a lot less than a new radiator and associated time or labor. Is there a leak somewhere that you can actually see the fluid coming from?
     
  4. CoquiSubi

    CoquiSubi Member

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    Im trying to figure this out. Have you physically scene it leak from a specific location? If its another cap it should have a replacement part or maybe an O-ring that needs to be replaced.
     
  5. D_K

    D_K Member

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    Subaru was telling me that there is no replacement cap? That the cap/seal was molded on to the radiator itself. I found this to be odd, because if it was not meant to come off then why would it be designed in such a way?

    As you can see in the picture, the leak is coming from the cap behind the radiator cap, you can even see it squirting from the side.
     
  6. D_K

    D_K Member

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    Yes I've seen it leak, and obviously the squirting. There is an O-ring there and that might fix the issue, but where could I find one?
     
  7. bixs

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    you can see the stream. from that location I can't imagine not trying JB Weld or something first. If it's not meant to come off, I see no reason to not chemically bond it together.
     
  8. Alex

    Alex Community Founder
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    If all else fails, he can come borrow your chainsaw :naughty:
     
  9. bixs

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    well if he does end up needing a new radiator, i'd recommend a sledgehammer over the chainsaw (would kick a little too much...well and the metal shrapnel might not feel that great).
     
  10. Jake

    Jake Active Member

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    there is a jb weld for radiators. used it on my cracked wrx radiator. held just fine for months. till i replaced it took 5 mins. then again it took me 15 mins to replace the radiator
     
  11. Mike@TTR

    Mike@TTR Active Member

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    If it comes down to it, I have a radiator I can get you cheap! I will be changing mine out for something a bit different in light of my upcoming v-mount set up. It is just stock, but I am sure it will work.
     
  12. kingwrex

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    i,ve had luck with jb weld also. it would be worth trying but if the jb weld doesnt hold then it will need a radiator
     
  13. CoquiSubi

    CoquiSubi Member

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    Pull the o-ring off and try matching it at a local parts store. Thats how did a few of mine. Advanced, napa, etc.
     

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