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  1. #51
    Epic Contributor MossRoad's Avatar
    Join Date
    Aug 2001
    Posts
    29,802
    Location
    South Bend, Indiana (near)
    Tractor
    Power Trac PT425 2001 Model Year

    Default Re: What to look for when testing a used machine

    Good for you. Sounds like you might have an honest mechanic. Reward him properly if that is the case.
    MossRoad

    Click On My Little Tractor
    To See Pictures And Videos
    Of It In Action!!!


  2. #52
    Super Star Member J_J's Avatar
    Join Date
    Sep 2003
    Posts
    18,922
    Location
    JACKSONVILLE, FL
    Tractor
    Power-Trac 1445, KUBOTA B-9200HST

    Default Re: What to look for when testing a used machine

    Seems like I mentioned those valves in three different post.
    J.J.

    When I works, I works hard. When I sits and thinks, I goes to sleep.

    Git er done.

  3. #53
    Elite Member woodlandfarms's Avatar
    Join Date
    Jul 2006
    Posts
    4,991
    Location
    Los Angeles / SW Washington
    Tractor
    PowerTrac 1850

    Default Re: What to look for when testing a used machine

    What valves are you talking about JJ? ;-)
    Power-Trac 1850, grapple, hoe, 90" mower, 72" box blade

  4. #54
    Super Star Member J_J's Avatar
    Join Date
    Sep 2003
    Posts
    18,922
    Location
    JACKSONVILLE, FL
    Tractor
    Power-Trac 1445, KUBOTA B-9200HST

    Default Re: What to look for when testing a used machine

    Intake and exhaust.

    washita mentioned the valves

    MossRoads mentioned the valves X2

    Gravy

    Tim_in_CT
    J.J.

    When I works, I works hard. When I sits and thinks, I goes to sleep.

    Git er done.

  5. #55
    Elite Member woodlandfarms's Avatar
    Join Date
    Jul 2006
    Posts
    4,991
    Location
    Los Angeles / SW Washington
    Tractor
    PowerTrac 1850

    Default Re: What to look for when testing a used machine

    Sorry JJ. It was an attempt at a joke. I had seen all the posts on valves. I love it when levity fails.
    Power-Trac 1850, grapple, hoe, 90" mower, 72" box blade

  6. #56
    Veteran Member
    Join Date
    Jun 2006
    Posts
    2,389
    Location
    West Cascades, Washington State USA
    Tractor
    PT 422

    Default Re: What to look for when testing a used machine

    Quote Originally Posted by woodlandfarms View Post
    Sorry JJ. It was an attempt at a joke. I had seen all the posts on valves. I love it when levity fails.
    FAIL!
    But Im thinking something to look at might be the valves.

  7. #57
    Gold Member
    Join Date
    Jul 2011
    Posts
    322
    Tractor
    Steiner 430

    Default Re: What to look for when testing a used machine

    Here is what I know about the motor.
    It runs good when started. Doesn't smoke. Sounds good. Has plenty of power.
    The previous owner had it rebuilt in the fall. The hour meter had 715 hrs on it when I bought it.
    I listened to all your advice on the board. Did what I knew I could do my self. Talked to Terry at Power Trac, described the best I could all the information I had on the engine. Took his advice on everything, followed it to a tee. Started once with a spray of gas. It started. Next day would not.
    Took the 422 to a very reputable small engine mechanic.
    He adjusted the valves. Found a bad wire. Thought everything was ok. Had it in his shop for a few days. He got it running.
    So the last few days it has been in the mid 40's, she will start.
    As soon as she drops below 40 - she won't start. Unbelievable!!!!
    Called Robin Subaru. Talked to tech support. He said I need to change the oil in the winter to 5w30 and to buy a heavy duty starter. He said starter doesn't produce the rpms to start the motor in the cold. OK what is the part number. Told him my engine size and year. His reply was there isn't a heavy duty starter for that year engine. Advised I call Terry at Power Trac.
    Tonight it is about 35 degrees. I try to start it. Backfiring through the carb and muffler. She won't start.
    Just can't believe how good she sounds when she runs. It is just getting it to run. Wish I could have bought a new one.

  8. #58
    Silver Member
    Join Date
    Feb 2009
    Posts
    227
    Location
    south western michigan
    Tractor
    pt 425, JI Case, Gravely Comm.10A

    Default Re: What to look for when testing a used machine

    do you cycle all of the controls, ie: joystick, treadle, steering, to relieve any residual hydraulic pressure buildup in the system? before attempting to start the engine. mine it will not start below 30 degrees if I forget to cycle the controls, if I cycle the controls it will start at 20 degrees without any assistance, anything lower than 20 degrees I have to jump start it but it also resides outside most of the year with a tarp over it

  9. #59
    Platinum Member tmarks11's Avatar
    Join Date
    May 2005
    Posts
    834
    Location
    Seattle, WA
    Tractor
    Power Trac 422 (2005)

    Default Re: What to look for when testing a used machine

    Quote Originally Posted by Frank Sorbello View Post
    Told him my engine size and year. His reply was there isn't a heavy duty starter for that year engine..... Wish I could have bought a new one.
    You still can! It can be better then new:

    http://www.brandnewengines.com/EH722DSF050.aspx

    What to look for when testing a used machine-207694d1302406832-pt422-engine-swap-completed

    Ask KMA and Vacuous_One how their Fuel Injected 28 HP engine starts in cold weather. Both installed in PT422s.

    http://www.tractorbynet.com/forums/p...eted-pics.html
    http://www.tractorbynet.com/forums/p...ml#post2170245

    If my engine dies someday, that is what I will do.

    So I got to thinking. What about just mounting the Robin EFI throttle body (which contains the ECU) and an electric fuel pump on an existing Robin engine. I think that is the only real difference. Cheaper then replacing the whole engine.

    Well, not by much. $480 for the throttle body. ouch. $91 for the fuel pump.

    http://www.jackssmallengines.com/Par...100/2204455/pd

    back OT, what year is your engine? Clean up the battery connections, run a heavier gage wire directly to the starter solenoid instead of the two-part with a post like it comes from the. Every little bit can help.

    Mine is a 2005, and it also doesn't like weather below 40F. Making sure I run it at least every 1-2 weeks during the winter helps. Heater underneath the engine for an hour before starting helps.

    Do you keep it outside or in the garage?
    Last edited by tmarks11; 03-02-2013 at 05:01 PM.
    -----------------------------------------------------
    Tim
    2005 PT-422
    4n1, LMB, minihoe, 48" mower, brush hog, Land Pride aerator, Herd spreader, auger, towing, forks, box blade, plow, box blade, tiller, trencher
    PT422 (6/23/05) photo page

  10. #60
    Veteran Member SpringHollow's Avatar
    Join Date
    Dec 2006
    Posts
    1,999
    Location
    South of Rochester, NY
    Tractor
    Power Trac 1850, NH 2120

    Default Re: What to look for when testing a used machine

    stick on heating pads, magnetic heaters, etc certainly will help when it is cold as will synthetic oil. A good battery, cable, and connections also go a long way towards starting.
    PT1850, mini hoe, grapple, stump grinder, brush hog

    http://www.usadiscountgenerators.com...T1850Home.html

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