gearbox stuck to engine!

Discussion in 'Diesel Engines' started by hinemoa, Jan 29, 2011.

  1. hinemoa
    Joined: Jun 2010
    Posts: 34
    Likes: 1, Points: 0, Legacy Rep: 20
    Location: taupo nz

    hinemoa hinemoa

    trying to seperate my ford d series engine so i can fit a new motor, but it has a capitol gearbox 2;1 ratio on it and the thing wont seperate, i have even stripped the engine down and got the crank of it so i have a crank with a flywheel on it but gearbox still stuck to it, tried lifting crank with endless chain in the air so the gearbox weight mite help it but it still didnt budge, my only next plan that i can think of is to cut some round holes in bellhousing and see whats going on, or try cutting the flywheel up into pieces from the back end and cutting the spline housing of, but the flywheel looks mighty thick!may take a box of cut of discs??
    anyone got any ideas, as the engine that is going in it is a 1 to 1 ration paragon box, and the boat is set up for the 2 to 1 ratio?
  2. CDK
    Joined: Aug 2007
    Posts: 3,324
    Likes: 148, Points: 63, Legacy Rep: 1819
    Location: Adriatic sea

    CDK retired engineer

    I would cut a hole in the bell housing in front of the flywheel, then use a welding torch to heat the splined collar of the engine coupler plate.
  3. alan white
    Joined: Mar 2007
    Posts: 3,731
    Likes: 122, Points: 0, Legacy Rep: 1404
    Location: maine

    alan white Senior Member

    If the crankshaft is junk anyway (or if you can protect it with something), I'd whack the forward end of it with a sledge hammer of good proportion. It's likely a shock is all it needs to let go.
  4. hinemoa
    Joined: Jun 2010
    Posts: 34
    Likes: 1, Points: 0, Legacy Rep: 20
    Location: taupo nz

    hinemoa hinemoa

    had a sledge hammer on the end of it all ready, but just dont want to get to butch at this stage yet as i dont want to damage the input bearing/housing of the box, but i think tomorow i will go and try to hire a generator and grind a hole in the housing to see if i can see some kind of plate or something anyway
  5. powerabout
    Joined: Nov 2007
    Posts: 2,941
    Likes: 67, Points: 48, Legacy Rep: 719
    Location: Melbourne/Singapore/Italy

    powerabout Senior Member

    How about cut a small hole in the bellhousing on the gear box side and undo the drive plate bolts so the gearbox will come off and then you can press the input shaft out of the drive plate and or at least work on it.

  6. gonzo
    Joined: Aug 2002
    Posts: 16,468
    Likes: 1,490, Points: 123, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    It should be possible to cut a hole and use a long extension with a socket to take the bolts off.
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.