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Thread: wtb: 1925 JD rear cylinder

  1. #1
    Join Date
    Sep 2016
    Location
    Oregon
    Posts
    91

    Default wtb: 1925 JD rear cylinder

    I took my 25JDCB for a ride yesterday & blew the top off the rear cylinder.
    So now I am looking for a good used 74" rear cylinder to replace it.
    Any leads appreciated.

  2. #2
    Join Date
    Dec 2001
    Posts
    429

    Default

    I probably have what you need. Send me a private message and let me know here that you did. I'm in NorCal.
    DrSprocket

  3. #3

    Default

    Any idea why it blew?

  4. #4
    Join Date
    Sep 2016
    Location
    Oregon
    Posts
    91

    Default

    Quote Originally Posted by RichO View Post
    I probably have what you need. Send me a private message and let me know here that you did. I'm in NorCal.
    pm sent rich

  5. #5
    Join Date
    Jan 2006
    Location
    Menomonie, WI
    Posts
    1,262

    Default

    My guess if you took the time to analyze it that one of 3 things caused the cylinder to blow.

    1. Timing off.
    2. Intake leak.
    3. Overbored cylinders.


    Quote Originally Posted by pfindlay View Post
    Any idea why it blew?

  6. #6
    Join Date
    Jun 2001
    Location
    Central Illinois, USA
    Posts
    4,274

    Default

    Quote Originally Posted by Jerry Wieland View Post
    My guess if you took the time to analyze it that one of 3 things caused the cylinder to blow...Overbored cylinders.
    Overbored without proper stress plates.

    ....Cotten
    AMCA #776
    Dumpster Diver's Motto: Seek,... and Ye Shall Find!

  7. #7
    Join Date
    Dec 2001
    Posts
    429

    Default

    No, it was bored and sleeved which leaves a sharp ridge at the time in a blind hole thus a fracture zone. Another cylinder is taking it's place.
    DrSprocket

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