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Desperately need help finding source for Wuling brake parts

Discussion in 'General Truck Info' started by lump, Apr 11, 2021.

  1. lump

    lump New Member

    I have a 2004 Wuling mini truck, and it has been a good workhorse for us for the last several years. But it developed a brake fluid leak, and I traced it to failed front wheel cylinders. So I wanted to order some new ones, but cannot find a source for practically ANY Wuling parts.

    Please help if you can. I need to use this mini truck at our upcoming outdoor events in just two weeks (April, 2021).

    Any assistance will be deeply appreciated. -----Jim
     
  2. ttc

    ttc Active Member

  3. lump

    lump New Member

    Thanks so much for trying to help. I really need front wheel cylinders, or just the seals to rebuild my existing units. (There are 4 of them!)
     
  4. ttc

    ttc Active Member

    What is the model of the truck?
     
  5. Jigs-n-fixtures

    Jigs-n-fixtures Well-Known Member

  6. lump

    lump New Member

    Hello. The owners manual states it is Model LZW1010PLNBi1.

    Thanks for trying to help.
     
  7. lump

    lump New Member

    I took your advice and called them. Nice folks. They referred me to "Derek," who is their team member who knows the most about Chinese mini trucks. But he could not supply me with brake parts for my model...at least not from his inventory. It may be possible for him to order parts for me. But in the meantime, I've been trying and trying to find something I could substitute from some other application. Thus far, I have failed in multiple attempts. Thank you to everyone who has tried to assist me, so far.
     
  8. ttc

    ttc Active Member

    Pull the drum and take some pictures of the cylinders so we can see what's on them for numbers
     
    Limestone likes this.
  9. Limestone

    Limestone Well-Known Member

    When I did my Mini trucks brakes a few yrs ago, I had a heck of a time finding wheel cylinders for my truck. When I finally did the price was nuts, but I didn't have too many choices! So I bit the bullet, and bought them, and since then I was able to find some, on Ebay, and acquired extra's! Just in case! I know that I can always sell them, down the road, if I have too! Since then I took the old ones too a re builder, and had two of them rebuilt! The other two were too far gone! The rear's were available, but the fronts were almost impossible to find! I remember, it was pretty frustrating! Please go to your Profile, and click on you Signature, and tell us what you have, so we can try to help you, find what you need! Thanks!
    Limestone
     
  10. Jigs-n-fixtures

    Jigs-n-fixtures Well-Known Member

    What exactly is wrong with yours? If it is just the seals you can probably track down those, or suitable substitute, and rebuild them. There are probably videos on YouTube on how to do it.

    Worst case scenario: They can be sleeved. https://www.applehydraulicsonline.com/collections/sleeving

    https://whitepost.com/brake-sleeving-rebuilding-services/

    http://www.karpspb.com/sleeving.htm

    When I was in college, the Technician who was in charge of deciding who got to use which machines in the Engineering shop, had an early sixties Chevy 1-ton, and needed wheel cylinders for it. They were cast iron, and pitted enough they would damage the cup seals in short order. A common problem with older vehicles, because the brake fluid of the time had an affinity for water, and would absorb water from the air, resulting in the cylinders corroding on the bottom of the bore.

    I made a friend for ever, by boring out his cylinders, and sleeving them with some seamless stainless steel tubing, that they had back in the pile of things the Nevada Test Site had donated to the University.
     
    Limestone likes this.
  11. lump

    lump New Member

    Thanks for the input. I updated my profile today, per your suggestion. Much appreciated.
     
  12. lump

    lump New Member

    Thanks, Jigs. Actually, my cylinders are aluminum. I've only removed those on the passenger side so far, but there is no pitting or other problems in the bore. It's simply a matter of the piston seals being shot. So far, it's been impossible to locate piston seals which can be made to work.

    I do know that when I remove the other two wheel cylinders on the driver's side (it's LHD), I might find pitted cylinders there. But the problem which led me to start working on the brakes in the first place was a brake fluid leak on the right front drum brakes.
     
  13. lump

    lump New Member

     
  14. Jigs-n-fixtures

    Jigs-n-fixtures Well-Known Member

    I think NAPas might have the wheel cylinder cups in a bunch of different sizes. What is the bore of the cylinder?
     
  15. lump

    lump New Member

    I've been to NAPA and other old-school wide-coverage-inventory auto parts stores. While some of them do stock assortments of wheel cylinder CUPS, the seal I need is more of an umbrella or mushroom-cap shape, with a hole in the middle. (shown in attached photo, between the caliper jaws, still installed on the piston). You can see the wear on the outer seal surfaces in the first photo. Second photo is a good photo of the wheel cylinder housing. The bore is very close to 1 inch.
     

    Attached Files:

  16. lump

    lump New Member

    Another photo of my wheel cylinder. Note that each front wheel has 2 such cylinders, each with a single one-way-only piston.
     

    Attached Files:

  17. Jigs-n-fixtures

    Jigs-n-fixtures Well-Known Member

    I think you could possibly 3D print them.
     

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