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  1. #11

    Join Date
    Nov 2014
    Posts
    9,377
    Location
    Australia
    Mower
    Victa slashers & Push , Rover Rancher II's, Cox ( several ) & White LT120 + GT 200

    Re: Here's Your Problem. (19hp Kohler Courage)

    Quote Originally Posted by Luffydog View Post
    The main reason it happens is the engine is not perfectly balanced and with viberations from the engine and from rough terrain causing bolts to loosen up which causes a more unbalance resulting in the crankshaft counter weight to fly out and hit the block causing major damage and failure. Although I have seen one run with hole in the block. He said mower is making a noise and would like for me to check it out. When he cranked it up to unload it off the trailer it was the last time it ran.
    Don't extrapolate your customers problems to cover the entire run of engines.
    Most Husqvarnas sold down here are fitted with Courages and very few of them have problems with the bolts loosening.
    As for balancing, most are balanced very well, far better than the equivalent Inteks so it will be a 3rd , 4th or higher resonance that is causing the problems.

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  3. #12

    Join Date
    Jan 2018
    Posts
    362
    Location
    Usa
    Mower
    Grasshopper

    Re: Here's Your Problem. (19hp Kohler Courage)

    The new kohler engine has 2 in it now. Their reason is for quieter but the main is for the balance.

  4. #13

    Join Date
    May 2017
    Posts
    226
    Location
    New Hampshire
    Mower
    Husqvarna

    Re: Here's Your Problem. (19hp Kohler Courage)

    Picked up another Toro Timecutter with a Courage. This one runs great but has the typical hairline crack. See pics. What can I expect to pay to have this welded or should I just use JB Weld or similar?
    Attached Images Attached Images

  5. #14

    Join Date
    Nov 2014
    Posts
    9,377
    Location
    Australia
    Mower
    Victa slashers & Push , Rover Rancher II's, Cox ( several ) & White LT120 + GT 200

    Re: Here's Your Problem. (19hp Kohler Courage)

    Go about 1/8" to 1/4" past the end of the crack and drill a 1/8" hole
    This helps to arrest the crack getting bigger.
    If you wash the crack really well, JB Weld will fill the crack reasonably well.
    Just make sure the bolts on the cover plate are kept tight.
    The crank will start weeping after a while, but I have managed to keep a couple of these owned by non - profit / charity clubs running like this.
    Also check the oil EVERY time you use the mower.

    OTOH I can now weld the cases , with oxy using a DHC 2000 low pressure gun and fine filler rod.
    Electric welding does not work as well as you have to get the crack surgically clean & dry in order for the weld to work.

    Unless you have a friend who welds, or the gear yourself, a short block will be a better and most likely cheaper if you want a permenent fix.
    Products like Lumiweld and similar alloy "welding" rods ( they are actually solders ) can also do a reasonable fill if the crack is really really clean.
    But again this is not structural and has little more strength than the JB weld but at least it will not leak.

  6. #15

    Join Date
    May 2017
    Posts
    226
    Location
    New Hampshire
    Mower
    Husqvarna

    Re: Here's Your Problem. (19hp Kohler Courage)

    Quote Originally Posted by bertsmobile1 View Post
    Go about 1/8" to 1/4" past the end of the crack and drill a 1/8" hole
    This helps to arrest the crack getting bigger.
    If you wash the crack really well, JB Weld will fill the crack reasonably well.
    Just make sure the bolts on the cover plate are kept tight.
    The crank will start weeping after a while, but I have managed to keep a couple of these owned by non - profit / charity clubs running like this.
    Also check the oil EVERY time you use the mower.

    OTOH I can now weld the cases , with oxy using a DHC 2000 low pressure gun and fine filler rod.
    Electric welding does not work as well as you have to get the crack surgically clean & dry in order for the weld to work.

    Unless you have a friend who welds, or the gear yourself, a short block will be a better and most likely cheaper if you want a permenent fix.
    Products like Lumiweld and similar alloy "welding" rods ( they are actually solders ) can also do a reasonable fill if the crack is really really clean.
    But again this is not structural and has little more strength than the JB weld but at least it will not leak.
    What keeps the crack from going around the hole?

  7. #16

    Join Date
    Nov 2014
    Posts
    9,377
    Location
    Australia
    Mower
    Victa slashers & Push , Rover Rancher II's, Cox ( several ) & White LT120 + GT 200

    Re: Here's Your Problem. (19hp Kohler Courage)

    The crack is longer than what you can see.
    The root will be around 1/8" in front of what you see.
    Cracks are like water & electricity, they take the easiest path and the hole is an easy path for them to go into but hard for them to leave.
    Check the top plate carefully, if the bolt holes are flogged oval, replace the top plate, I forgot to put that in the reply.
    If there is no movement then there is no energy to drive the crack growth

  8. #17

    Join Date
    May 2017
    Posts
    226
    Location
    New Hampshire
    Mower
    Husqvarna

    Re: Here's Your Problem. (19hp Kohler Courage)

    Quote Originally Posted by bertsmobile1 View Post
    The crack is longer than what you can see.
    The root will be around 1/8" in front of what you see.
    Cracks are like water & electricity, they take the easiest path and the hole is an easy path for them to go into but hard for them to leave.
    Check the top plate carefully, if the bolt holes are flogged oval, replace the top plate, I forgot to put that in the reply.
    If there is no movement then there is no energy to drive the crack growth
    That makes sense. I was always told to drill right at the bottom of the crack but I will do what you recommend. Thanks.

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