My Air Suspension

Discussion in 'Suspension/Chassis' started by TRUCK ACTION, Jul 7, 2018.

  1. TRUCK ACTION

    TRUCK ACTION Grand Toyotaholic

    Joined:
    Jan 5, 2008
    Messages:
    3,615
    Likes Received:
    197
    Location:
    Vallejo,Ca.
    Truck:
    88 Extracab,2wd
    So I have had this slow drop in tank pressure for some time. Test all the fittings ,manifolds & would never find it,so decided to test for blow back though the compressors. ound a bad check valve, ordered 3 more from McMaster-Carr & fuck all 3 are bad!! Told must be a bad lot,new ones on the way.
    At the same time I decided it was time to replace the compressors, even though still working ,have to be worn with 10 years of use!
    Ordered a 485 duel pack,Viairs newest compressors.
    Hope to have all on before the next two shows! Phot's to come.
     
    The Count and jetas like this.
  2. jetas

    jetas Grand Toyotaholic

    Joined:
    Mar 26, 2009
    Messages:
    4,787
    Likes Received:
    346
    Location:
    Oxnard, CA
    Truck:
    72.5 Hilux
    Aside from the pressure drop, was there any other signs of the bad check valve on the comps? I have 2 480s we had in our Venza and i constantly hear a low hiss and it would be relieved when i would move the line on the comp.
     
  3. TRUCK ACTION

    TRUCK ACTION Grand Toyotaholic

    Joined:
    Jan 5, 2008
    Messages:
    3,615
    Likes Received:
    197
    Location:
    Vallejo,Ca.
    Truck:
    88 Extracab,2wd
    No, I use a blue liquid to check for leaks,it clings to what you spay it on.
    I don't use the leader hose with check valve from Viair,they fail often, I use check valves from McMaster-Carr & I use them it many places not use between the compressors & tanks.

    Just have air in your tank & remove the compressor air filter ,put a fitting with a small length of hose ito a glass of water ,you will see bubbles if the check valve as failed. You can get replacement leader hose with the check valve, if the check valve is removable that is available also.
     
    d-cheeze likes this.
  4. jetas

    jetas Grand Toyotaholic

    Joined:
    Mar 26, 2009
    Messages:
    4,787
    Likes Received:
    346
    Location:
    Oxnard, CA
    Truck:
    72.5 Hilux
    Im going to have to try that.
     
  5. TRUCK ACTION

    TRUCK ACTION Grand Toyotaholic

    Joined:
    Jan 5, 2008
    Messages:
    3,615
    Likes Received:
    197
    Location:
    Vallejo,Ca.
    Truck:
    88 Extracab,2wd
    So I got my old compressors polished out & the fins repainted, & received the new ones.
    Make two new mounting plates which I used the existing mounts which are 5 mm nuts weld to the notch cover , I machined the new plate so that it anchors to the the notch cover using these ,than the compressors sit rearward so I didn't have to remake the stainless hard lines. Test fit all & all is good.Will paint the plates & polish out the compressors today. IMG_20180710_152757.jpg IMG_20180711_121439.jpg IMG_20180711_134623.jpg IMG_20180711_150625.jpg
     
    jetas and The Count like this.
  6. Nineteen86

    Nineteen86 Member

    Joined:
    Mar 2, 2016
    Messages:
    53
    Likes Received:
    9
    Location:
    Orange City Fl
    Truck:
    86 xcab
    Thats a very intricate looking setup there. Looks like alot of time went into bending all those hardlines.
     
    TRUCK ACTION likes this.
  7. TRUCK ACTION

    TRUCK ACTION Grand Toyotaholic

    Joined:
    Jan 5, 2008
    Messages:
    3,615
    Likes Received:
    197
    Location:
    Vallejo,Ca.
    Truck:
    88 Extracab,2wd
    Yes, & true of the truck build!
     
  8. Nineteen86

    Nineteen86 Member

    Joined:
    Mar 2, 2016
    Messages:
    53
    Likes Received:
    9
    Location:
    Orange City Fl
    Truck:
    86 xcab
    One day id love to do hardline to all my bags, but for right now im going the easy way.
     
  9. TRUCK ACTION

    TRUCK ACTION Grand Toyotaholic

    Joined:
    Jan 5, 2008
    Messages:
    3,615
    Likes Received:
    197
    Location:
    Vallejo,Ca.
    Truck:
    88 Extracab,2wd
    I have the hard lines in the bed & push to connect under. Can lift the truck ,drain the tanks of air & disconnect the top from the bottom & lift the bed with all in it.
     
  10. Nineteen86

    Nineteen86 Member

    Joined:
    Mar 2, 2016
    Messages:
    53
    Likes Received:
    9
    Location:
    Orange City Fl
    Truck:
    86 xcab
    Oh damn. Thats pretty awesome. Im doing the basic setup under the bed that wont be seen.
     

Share This Page