Which hose clamps are best suited?

Discussion in 'Z32 Technical' started by Chesutiko, Jun 6, 2011.

  1. Chesutiko

    Chesutiko New Member

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    I've got new silicone coolant lines from Z1 and am in the process of installing them, but have noticed the black factory spring steel clips are very very difficult to fit over the silicone hose and even then... pretty much impossible to get over the metal hard pipes afterwards.

    I've been looking for these same spring steel Nissan clamps in a larger size that will fit over the silicone hose. But they're proving difficult to find.

    My question is, should I bother going to the effort to find Nissan spring steel hose clamps or just use small worm drive clamps that may chew into the silicone hose?

    I asked if they had the Nissan clamps at a Nissan dealership only to be told "Don't use them they're crap".. which contradicts what I had originally thought.
     
  2. zedboy

    zedboy Active Member

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    Are the silicone hoses much larger than the OEM rubber hoses??

    Maybe some sort of T-clamp that you can tighten with a ring spanner... persit with the spring clamps and some silicone spray.

     
  3. brisz

    brisz Well-Known Member

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    My belief is that the spring clamps on the short coolant hoses are better because they apply a sealing force that is more consistent through out its life of hot cold cycling, a worm drive clamp wont provide tension and may be difficult to get to once installed to tweak.

    Use a bit of lube so they will slip on easier.

    Also use some of this non hardening sealant for extra security.

    http://www.supercheapauto.com.au/on...Sealant-Liquid-No-3.aspx?pid=5355#Description

    Permatex Aviation Form-A-Gasket Sealant Liquid - No. 3
     
  4. Chesutiko

    Chesutiko New Member

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    They're about 2mm larger than the original hoses. I've gotten one to fit.. it's incredibly tight though and the only way I got it to fit was with a fair bit of INOX and the help of another person... :confused: haha just something sounds 'not right' about needed 2 people to fit a tiny hose clamp.
     
  5. Mitch

    Mitch Has one gear: GO

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    I've got a small pair of long-nose 'vice grips' pliers that lock on to those pesky spring clamps. Allow easy installation of them right up until the moment you want to release it. The angle you need to be on is tight though... but persevere.
    [​IMG]
     
  6. BooZX

    BooZX That Guy

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    one of my most used tools.
    HUMAN FINGERS ARE WEAK VICE GRIPS STRONGGGG
     
  7. Chrispy

    Chrispy Pretentious Upstart

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    I've used both the spring clamps and worm drives and not had a issue with either. I've just put my motor together and used the Coz silicone pipes and they fit the spring clamps perfectly.

    The Gates water hose I got for the turbo coolant lines on the other hand though... :mad:
     
  8. Instamatic

    Instamatic Active Member

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    This is why I went back to using the OE rubber hoses. I've used worm drive clamps on thicker-walled aftermarket hoses in the past, and they leaked.

    No such problem with the self-tensioning spring clamps, and the rubber hoses hold up fine as long as they're not old.
     
  9. brisz

    brisz Well-Known Member

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    And with the non hardening sealant to fill the areas between the hard pipe and the hose, a corrosion build up has far more difficulty growing and causing the signature weep that I am sure has lead to many overheated and damaged cars. Particularly after corrosion has occurred and left the surface of the pipes irregular and pitted.
     
  10. 260DET

    260DET Active Member

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    Good point although I'm not sure that gasket cement will prevent that corrosion. I'm thinking that the usual Nissan grey sealant may be more suitable in that it will keep all the coolant out.
     
  11. ZX1990

    ZX1990 2+2 TT Manual

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    No need for any gasket stuff - if you spend the few dollars to buy new bits:

    I've seen the originals in all sorts of states from pitted - to part missing....

    [​IMG]
    CZP link
     
  12. brisz

    brisz Well-Known Member

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    That's what I did, 2 of those and 2 new alloy pipes, silicon hoses and original clamps.

    Previous to the rebuild they were a persistent problem.
     

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