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  1. #11
    Member
    Join Date
    Dec 2011
    Posts
    37
    Location
    Sydney, Australia
    Tractor
    JD L110, MTD Yardman, Toro Wheelhorse 268-H, JD LA120

    Default Re: LA120 Drip, drip, drip and lime-scale/calcium

    Quote Originally Posted by jinman View Post
    Neo, I don't think the sealing washer will stop your leak. The bolt hole will just fill up with oil and then it will run out at the top around the gasket for the sump. Currently, the oil is leaking around the gasket and running down the bolt to the head. If you seal the head, the oil will just fill the void around the bolt and leak at the joint.

    I've had a similar problem on a older B&S engine. It got bad enough that I removed the engine and split it apart. The gasket was broken is about 5 places. It was thin material and vibration seemed to cause the bolts to loosen and then movement of the sump and engine block completely destroyed the gasket. After replacing the gasket and torquing the bolts with new washers, the problem never came back. I think if your engine is just seeping a tiny bit, I'd tolerate it until it got worse. It's a lot of work to remove and split an engine for a tiny leak like that. I can see that it is wetting the frame under the engine, but can't tell how bad the leak is because you've cleaned the area so well.
    Hi Jinman,

    Yes I have the same thoughts as you but copper washer is cheap so worth a go.
    A tea spoon of oil leaks every time the engine cools (I know because I've caught the drips). Doesn't sound like much but with air draft of the engine fan it make dirt sick on the hole one side of the engine which looks disgusting and one the reasons the previous owner sold me it cheap. I hate dirty engines so if the copper washer doesn't work I will go to the effort of removing the engine to fix it. ... But I'm hoping that someone will come up with a smart trick to get around that.

    All the best.
    Neo

  2. #12
    Member
    Join Date
    Dec 2011
    Posts
    37
    Location
    Sydney, Australia
    Tractor
    JD L110, MTD Yardman, Toro Wheelhorse 268-H, JD LA120

    Default Re: LA120 Drip, drip, drip and lime-scale/calcium

    Quote Originally Posted by Gary Fowler View Post
    That white powder residue is not calcium, it is aluminum oxide (rust) and will get on any aluminum when exposed to the right weather conditions. I get it on my boat after salt water exposure even after thoroughly washing it down. It takes several months of inactivity to show up but it will. Most old aluminum engine show some oxidation when left to set for months. Doesnt really hurt that much as it is just surface but will cause some pitting if left. Thoroughly wash with water, brush with stainless or brass bristle brush, dry and put a light oil/wax coating on it.
    Thanks Gary.

  3. #13
    Gold Member
    Join Date
    Oct 2010
    Posts
    420
    Tractor
    08 Cub Ex3200

    Default Re: LA120 Drip, drip, drip and lime-scale/calcium

    Muratic acid (aluminum wash) will clean that up really good too. Or take it to a engine builder and have him put it in thier caustic tanks, will come out looking brand new. Dunno about prepping for it though.

  4. #14
    Elite Member Don87's Avatar
    Join Date
    May 2010
    Posts
    4,226
    Location
    SW Pa.
    Tractor
    Massey Ferguson GC2400

    Default Re: LA120 Drip, drip, drip and lime-scale/calcium

    Quote Originally Posted by puckgrinder85 View Post
    Muratic acid (aluminum wash) will clean that up really good too. Or take it to a engine builder and have him put it in thier caustic tanks, will come out looking brand new. Dunno about prepping for it though.
    The prep for that would be to completely disassemble the enigine, remove all bearings....ETC. Just send the case in to be cleaned.
    Don

    MF GC2400, FEL, 60in.MMM, 5ft. Cultivator, Single Bottom Plow, Bush Hog RTC48 tiller, MF 2360 front mount snowblower, 5ft backblade. BXpanded Piranha toothbar.

  5. #15
    Member
    Join Date
    Dec 2011
    Posts
    37
    Location
    Sydney, Australia
    Tractor
    JD L110, MTD Yardman, Toro Wheelhorse 268-H, JD LA120

    Default Re: LA120 Drip, drip, drip and lime-scale/calcium

    Hi All,

    I just wanted to update you on the drip, drip drip (through the bolt head). The copper compression washer fixed the problem.... and I'm as surprised as anyone


    All the best.
    Neo

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