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  1. #1
    Elite Member Gittyup's Avatar
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    Oct 2007
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    2,901
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    Mid Atlantic
    Tractor
    Kioti CK25 Shuttle Shift, loaded tires, JD X739

    Default Seized engine Rex

    I have a 3.5 hp b&s on a leaf vacuum that seized due to no oil. I was able to get it to move freely again by rotating the vacuum impeller. I filled it back with oil and it starts and runs pretty good now. My questin is: will it be ok to use? Or should I just replace it because it will never be right again? Thanks for any help anyone can give mw.

  2. #2
    Gold Member mvwicker's Avatar
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    Sep 2009
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    325
    Location
    St Louis, MO
    Tractor
    2007 New Holland TC34DA

    Default Re: Seized engine Rex

    If you scored the cylinder it will have less power and burn more oil, but chances are you didn't do any major damage.

  3. #3
    Platinum Member
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    Mar 2006
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    682
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    BEECHER CITY, IL
    Tractor
    KIOTI DK45S

    Default Re: Seized engine Rex

    There is a good chance that the rod seized to the crankshaft, and will seize again and break the rod, within just a very short period of time.
    ILLINOIS ENGINE, Beecher City, IL
    Briggs and Stratton MST (Master Service Technician)
    ILENGINE over at Lawnmowerforum

  4. #4
    Elite Member
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    Jul 2006
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    Northwest, WA

    Default Re: Seized engine Rex

    I'd run it till it pukes.
    ::Sent from a standard desktop keyboard::

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  5. #5
    Platinum Member JD 4520's Avatar
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    Apr 2011
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    834
    Location
    Brinnon, WA
    Tractor
    John Deere 4520

    Default

    Quote Originally Posted by Gittyup
    I have a 3.5 hp b&s on a leaf vacuum that seized due to no oil. I was able to get it to move freely again by rotating the vacuum impeller. I filled it back with oil and it starts and runs pretty good now. My questin is: will it be ok to use? Or should I just replace it because it will never be right again? Thanks for any help anyone can give mw.
    If you can get it to run, I'd run it until it gives up. No use in replacing it too soon unless you have cash burning a hole in your pocket.
    Gary

    JD 4520, 400X FEL, Frontier Front Blade, Box Blade, Rotary Cutter, Landscape Rake, 48" Wildkat Grapple and PHD

  6. #6
    Elite Member Gittyup's Avatar
    Join Date
    Oct 2007
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    2,901
    Location
    Mid Atlantic
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    Kioti CK25 Shuttle Shift, loaded tires, JD X739

    Default Re: Seized engine Rex

    I started it today and let it run for about 10 minutes. Seemed to run fine. No smoke, no miss. I think I'm going to put it back together and run it till it really gives out.

  7. #7
    Member
    Join Date
    Jun 2004
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    45
    Location
    N.W. Alabama
    Tractor
    Kubota L2800

    Default Re: Seized engine Rex

    My grandfather many years ago did the same thing to a garden tiller, he was convinced it was completely shot and had already bought a new one, I pulled the head off and the recoil starter, put oil on top of the piston and gently rocked it back and forth until it freed up, back together it went and out to the garden, ran for years afterwards. Just keep a check on the oil level and it should be fine.
    Last edited by cattoon; 12-25-2012 at 11:10 PM. Reason: spelling

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