My New (to me) LT155
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Thread: My New (to me) LT155

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    My New (to me) LT155

    I just bought a lightly used JD LT155. It is an '01 model, but was hardly ever used. I bought it from an older lady. Her husband bought it new and got sick right afterward, so they paid a landscaping service to take care of their yard. The thing is spotless and looks brand new. I got a great deal on it, price-wise.

    My question is about the engine (Kohler 15CV). There is a ticking sound coming from, best I can tell, the top of the engine, in the valve area. My best guess is that it is a lifter. I put a little STP Oil Treatment in it and ran it up and down the street for a few minutes and it quieted down quite a bit. Is this something to be concerned about? I have never heard a rod knocking before, but I would think the sound would be coming from lower in the engine.

    I have done a complete overhaul on a boat motor before, but I am really hoping that I don't have to do that to this thing.

    Thanks,
    cvlngineer

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    Brian's Avatar
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    When was the last time the oil was changed?

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    Brian

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    glc
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    I'm guessing the tractor sat for quite a while. If that is the case,it very well could be a sticking lifter. As Brian posted,the oil should be changed for sure. Hopefully,using the tractor on a frequent basis,may free it up. If not it may need to be replaced. Not positive, but I don't think those lifters can be disassembled.

    Greg
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    What weight oil are you using? Those engines are designed to be used with 10w30 oil. I have a LT133 and the valves tend to be a little noisy anyway. Seems to mostly go away at higher rpm.

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    I'm really not sure what weight oil is in it now, but they had it serviced by the local JD Dealership recently. I hauled it to my brother's house this evening and cut his and his neighbor's grass and it has quieted down a whole lot. Hopefully, it is going to work itself out. It is very comfortable to ride and cuts phenomenally well.

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    If it's been sitting, I would thing that with new oil, just getting it a little excercize would do it wonders. Seems like you're on that path............~Scotty

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    I've had a LT155 for 15 years and it is a very good machine. I got the 42" mulching deck and mow about 1 1/2 acres with it. The only trouble I've had was breaking the timing belt for the blades. Just make sure you pick up any limbs and stuff that mowers aren't supposed to cut anyway and you'll be fine. I learned the hard way.

    Good luck.
    Wayne
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    Quote Originally Posted by Uncle Wayne View Post
    I've had a LT155 for 15 years and it is a very good machine. I got the 42" mulching deck and mow about 1 1/2 acres with it. The only trouble I've had was breaking the timing belt for the blades. Just make sure you pick up any limbs and stuff that mowers aren't supposed to cut anyway and you'll be fine. I learned the hard way.

    Good luck.
    The timed deck was only on the Freedom decks, which was an option. The 38, the 42C and the 48C decks were not timed. Most of the LTs were sold without the Freedom decks, which was a 42 inch two spindle timed deck. The Freedom decks are easily recognized by having no discharge opening. The blades were counter rotating, therefore had to be timed.

    Unless the deck looks like the one below, it's not a Freedom deck and therefore isn't timed.
    Attached Thumbnails Attached Thumbnails freedom_deck.jpg  
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    Olympian Don Kardong

    1965 110s, 1966 110, 1967 112, 2001 LT150, 2003 GT245, 2004 GX345, 2006 X320

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