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Hustler Super Z hydro overhaul ?

Discussion in 'Lawn Mowing' started by HenryB, Feb 21, 2009.

  1. HenryB

    HenryB LawnSite Bronze Member
    Messages: 1,838

    I've read several posts about people having hydro/wheel motor problems with their Super Z (myself included). Someone stated the 21cc pumps may cause overheating. Could the 21cc pumps be replaced with 16cc pumps for more torque, less groundspeed, lower temps and less problems.
     
  2. ricky86

    ricky86 LawnSite Bronze Member
    Messages: 1,887

    What problems are you having?
     
  3. HenryB

    HenryB LawnSite Bronze Member
    Messages: 1,838

    Serious lack of torque, bogs in high grass and burnt up wheeel motors:cry:
     
  4. Tommy Boy

    Tommy Boy LawnSite Member
    Messages: 220

    Hey, we replaced a pump and a wheel motor with just a lil over 1000 hours, I will never buy Hustler again. Good luck, I'll watch the post for response, but poor dealer support and I think we got taken on the wheel motor replacement.
     
  5. puppypaws

    puppypaws LawnSite Fanatic
    Messages: 8,960

    Tell me what size engine you are running and I will explain what is happening to your hydraulics.
     
  6. HenryB

    HenryB LawnSite Bronze Member
    Messages: 1,838

    I've had 2 1st 24hp Honda 2nd 27hp Kohler. I really loved both of them just too many issues. I also think the 21cc hydros overwork the engine hence why I'd like to to see 16cc used.
     
  7. Tommy Boy

    Tommy Boy LawnSite Member
    Messages: 220

    25 HP Kaw, Super Mini Z
     
  8. ricky86

    ricky86 LawnSite Bronze Member
    Messages: 1,887

    Are those Parker wheel motors or Hydrogear wheel motors? Both sides weak? What do you mean ''Burnt up"?
    I've seen quite a few problems with Hydrogear motors , but the Parkers are close to bullet proof.
     
  9. HenryB

    HenryB LawnSite Bronze Member
    Messages: 1,838

    Pumps are hydrogear the wheel motors are White.
     
  10. JimQ

    JimQ LawnSite Bronze Member
    Messages: 1,139

    The short answer to your question is absolutely yes.

    It's not a direct drop in though. The PW (21cc) pump is physically larger than the PR (16cc) PR pump. The mounting flange on the 21cc is larger than the 16cc. The swap would require some fabrication work.

    Q
     

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