MT loads up but won't recover
Results 1 to 6 of 6

Thread: MT loads up but won't recover

  1. Top | #1

    Join Date
    Aug 2015
    Last Online
    08-19-2019 @ 11:17 PM
    Location
    west of montgomery AL
    Posts
    3
    Thanks
    0
    Thanked 0 Times in 0 Posts

    MT loads up but won't recover

    I still have a working MT.... It will bush hog all day on a tank of gas... Although I've used it for 23 years; I still find issues I don't fully understand... Now it's loading up in heavy grass and when I push in the clutch it does not recover as it used to...
    I have rebuilt the governor shaft and the top end of the distributor and it still does it.... I end up advancing the distributor spark just to get it back to the shop..... I've both static timed it and used a light.... to no avail.... Also if it sits for a week or so; I have even had to advance the timing when I start it, just to get it to rev up.....
    So, I'm not shure if it's a distributor or a governor or operator issue.... Anyone have some good advice or prior experience with this problem????
    wwklink

  2. Remove Advertisements
    GreenTractorTalk.com
    Advertisements
     

  3. Top | #2
    Superglidesport's Avatar
    Join Date
    Dec 2011
    Last Online
    Yesterday @ 07:18 AM
    Location
    Littleton, MA
    Posts
    7,692
    Thanks
    689
    Thanked 1,580 Times in 991 Posts
    Check to make sure that the choke is fully opening. Also, you may possibly have a carb float or fuel inlet valve / needle & seat issue.

    Check your spark. It should be a nice bright, blue-white spark that should easily jump a 1/8" - 1/4" gap. If it's a weak, yellow spark you may have points, condenser or coil issues.

    That's where's I'd start and then follow the correct path.
    John Deere 3320
    eHydro, R4's, 300CX Loader, 61" HD Bucket
    JD Tooth Bar, Deluxe Hood Guard, Ken's Bolt-on Hooks
    485 Backhoe w. 18" HD Bucket
    Mid-PTO, Front 3 Point Hitch, 366 Front Blade
    Tarter 5' 3PH Tiller
    Frontier AP12F Forks

    John Deere 2032R
    R3's, 220R Loader, 57" HD Bucket
    Curtis Hard Side Cab & Heater
    62D Deck, iMatch Quick Hitch
    54 Snowblower
    Super HeavyHitch
    Little Wonder "Optimax" & JRCO Blower Buggy
    Fimco 60 Gallon 3PH Boomless Sprayer w. PTO Pump

  4. Top | #3

    Join Date
    Apr 2018
    Last Online
    08-10-2018 @ 09:07 AM
    Location
    Placerville, CA
    Posts
    84
    Thanks
    17
    Thanked 19 Times in 16 Posts
    Hi,

    I feel your pain. A smart friend of mine once told me-- all carb issues tend to be ignition and timing issues.
    When he told me, I found it insulting-- but I wasn't listening....

    I'd suggest checking the mag, points, read the spark plug, and ensure everything with the spark/ignition is robust.

    The previous post is RIGHT.

    Once the ignition system checks out, you should then focus on the carb.

    A few things to consider-- make sure everything is *clean* that connects-- plug leads, points, wires, etc. Make sure the grounds are clean.

    Once you get a good spark jumping across the plug, focus on the carb.

    I live in CA and therefore have to live with this cruddy gasoline we have. It literally used to boil in the tank on a hot day when I was mowing. (I have the video!). Provided you have decent gasoline, you should be "good to go."

    Good luck!

  5. Remove Advertisements
    GreenTractorTalk.com
    Advertisements
     

  6. Top | #4
    Neb
    Neb is offline
    Neb's Avatar
    Join Date
    Sep 2014
    Last Online
    Today @ 06:54 AM
    Location
    Central Illinois
    Posts
    175
    Thanks
    137
    Thanked 41 Times in 30 Posts
    I once had an F100 pickup 240ci six that kept changing timing. It turned out to be the roll pin that held the gear onto the distributor shaft. Might not be your problem, but it's a fairly easy thing to check.
    2007 3320 with 300CX Loader
    Piranha tooth bar
    Ken's Hooks
    5' box blade
    Forks
    Greens-Machine 'thumb'
    Titan 42" forks
    7.5 foot Meyer truck plow, loader mounted w/Ken's crossover relief valve
    72" 7 iron mid mounted deck
    Kubota post auger
    X485 with 62" deck and Ken's seat spring upgrade

  7. Top | #5

    Join Date
    Aug 2015
    Last Online
    08-19-2019 @ 11:17 PM
    Location
    west of montgomery AL
    Posts
    3
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Well Guess I need to look at the MS carb one more time...
    I have a great spark, new plugs,points,condenser, cap, recent copper plug wire and coil.... Just can't quite get my head around this situation where it's at idle and chugging, rich, but won't rev until you turn the distributor clockwise (past TDC)... Distributor role pin is good, not much end play in shaft, and advance springs work as intended.... No binding of throttle/governor linkage behind oil bath-breather either....
    The old carb has always been bit on the rich side even with the mix adjustment turned all the way in... Power adjustment is usually very responsive and has always worked as advertised. Now it does not seem to any effect; possibly due to the advanced timing or another issue in the carb itself.... So I'm going to take it apart and see what I find...
    Thanks for all the suggestions... I do appreciate them, as I was out of air speed and ideas....
    Now I need to find the time to check um all out....AH. after my 10 acres of lawn is mowed again... If it would just stop raining and get a bit hotter; that would not be a weekly thing this late in the summer....

  8. Top | #6

    Join Date
    Jul 2015
    Last Online
    Today @ 03:41 PM
    Location
    Near Roa. VA
    Posts
    3,551
    Thanks
    43
    Thanked 435 Times in 336 Posts
    I would still replace the condenser,, too many times the condenser has caused timing problems for me.

    Different temperatures will cause the condenser to act differently, causing intermittent issues.
    Some of the tractors include JD 4105, JD 855, JD 650,,,, and,,, the IH 584 4WD
    My favorite attachment is the homemade landplane,,, EVERYONE needs one of those!!

  9. Remove Advertisements
    GreenTractorTalk.com
    Advertisements
     

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •