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  1. #1
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    Aug 2005
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    Default Beaver Valve Job

    I have a S370D four wheel drive Beaver which is in pretty good shape for it's age, but the engine exhaust has black smoke all the time and more so when it's working. It doesn't seem to use oil and a valve adjustment doesn't seem to eliminate the exhaust smoke. Would it be advisable to do a valve job without overhauling the whole engine even though it probably has a substantial amount of hours on it? I don't think any of the Beavers had hour meters installed when they were new, but it's probably an early eighties model. Does anyone have Bill Rodgers contact information or any other parts dealer for the Beavers?

    Thanks,
    Thom

  2. #2
    Elite Member ToadHill's Avatar
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    Oct 2005
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    Catt county New York
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    Kioti DK35, Ford 8N, Oliver Cletrac

    Default Re: Beaver Valve Job

    Black smoke is usually the sign that the fuel mixture is too rick. Try adjusting the carb and see what happens.
    I can't control my day but I can control my attitude.

  3. #3
    New Member
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    Aug 2005
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    Default Re: Beaver Valve Job

    I didn't mention that my Beaver is a diesel because I assumed they didn't come with gas engines. I assume the black smoke could mean that the injectors are worn or dirty and it could also be from a lack of compression causing incomplete combustion. However, I haven't gotten around to doing a compression check yet. This is the first diesel engine I've owned and I'll just have to look at all the possibilities while troubleshooting.

    Thanks,
    Thom

  4. #4
    Veteran Member
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    Sep 2002
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    1,498
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    Mt. Ulla, NC
    Tractor
    Satoh S-470D, Mitubishi FD 1450D

    Default Re: Beaver Valve Job

    Check your air filter. If it it clogged you will get black smoke.

  5. #5
    Member
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    May 2005
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    26
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    Oregon

    Default Re: Beaver Valve Job

    I would check the injectors to see if they are spraying right.If they are fine i would check the injection pump.We stock the parts to fix it.

    Paul
    Smallimporttractor
    503-628-6319

  6. #6
    Veteran Member brain55's Avatar
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    Jan 2008
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    Brentwood, CA

    Default Re: Beaver Valve Job

    Black smoke is caused by 2 things, it is either over fueled (bad injector(s)), or under aired (plugged air filter or collapsed intake hose). Low compression will cause white or blue smoke.

    Brian

  7. #7
    Silver Member
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    Jun 2006
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    175

    Default Re: Beaver Valve Job

    Too much fuel and not enough air is your problem. I assume you checked the air filter and if that was not it, a remote possibility could be a clogged muffler for what ever reason.

  8. #8
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    Default Re: Beaver Valve Job

    Quote Originally Posted by mariner1 View Post
    I have a S370D four wheel drive Beaver which is in pretty good shape for it's age, but the engine exhaust has black smoke all the time and more so when it's working. It doesn't seem to use oil and a valve adjustment doesn't seem to eliminate the exhaust smoke. Would it be advisable to do a valve job without overhauling the whole engine even though it probably has a substantial amount of hours on it? I don't think any of the Beavers had hour meters installed when they were new, but it's probably an early eighties model. Does anyone have Bill Rodgers contact information or any other parts dealer for the Beavers?

    Thanks,
    Thom
    I have now replaced the air filter again without a lot of hours on it and put diesel injector cleaner in the fuel tank. That made a big difference in reducing the smoke output. These Beavers are not set up well with the exhaust coming out at the hood level. The cooling fan picks up any amount of smoke and blows it back under the hood just beside the air filter housing.

    Thanks for everyones input,
    mariner1

  9. #9
    Platinum Member techwrtr2's Avatar
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    Nov 2007
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    Alabama PA
    Tractor
    Which one?

    Default Re: Beaver Valve Job

    If you get your transmission issue resolved, you might consider doing as I did to my exhaust. Not only is your engine getting to inhale exhaust, so are you. http://www.tractorbynet.com/forums/m...r-exhaust.html
    I like to play in the dirt....
    Satoh Beaver w/Blackhawk loader & hoe.
    JD855 w/stuff.

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