SA 250 help
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Thread: SA 250 help

  1. #1
    Join Date
    Feb 2017
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    SA 250 help

    I recently purchased an SA 250 because im planning to go and do pipeline work this summer. I was practicing in my garage for about 4 hours and noticed oil leaking from a hose between the engine and the fan. The hose leads to the top of the engine. My question is why is that happening what is it? And how do i fix it. Name:  20170225_152900.jpg
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  2. #2
    Join Date
    Apr 2015
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    MS
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    Re: SA 250 help

    Looks like it is blow by. Check your engine oil carefully each time before you use it and see how much it is burning.


    Lincoln SA-250
    Lincoln SW 200
    Miller Thunderbolt
    SA-250 TMD
    Squarewave 200
    Thunderbolt AC/DC
    1951 G.E. welder

  3. #3
    Join Date
    Feb 2017
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    Re: SA 250 help

    Quote Originally Posted by Blocker View Post
    Looks like it is blow by. Check your engine oil carefully each time before you use it and see how much it is burning.


    Lincoln SA-250
    Lincoln SW 200
    Miller Thunderbolt
    Ok thanks for responding. Could it be out of level have anything to do with it?

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  4. #4
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    Re: SA 250 help

    I would doubt it unless it was WAY out of level like halfway fell of your truck. How many hours are on it? That is the Perkins engine, right?


    Lincoln SA-250
    Lincoln SW 200
    Miller Thunderbolt
    SA-250 TMD
    Squarewave 200
    Thunderbolt AC/DC
    1951 G.E. welder

  5. #5
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    Feb 2017
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    Re: SA 250 help

    Quote Originally Posted by Blocker View Post
    I would doubt it unless it was WAY out of level like halfway fell of your truck. How many hours are on it? That is the Perkins engine, right?


    Lincoln SA-250
    Lincoln SW 200
    Miller Thunderbolt
    Yes its the perkins engine. There are 7000 hours on it but runs great.

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  6. #6
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    Re: SA 250 help

    If it were mine, I think I would just keep an eye on the oil consumption and not worry too much until it started using some.


    Lincoln SA-250
    Lincoln SW 200
    Miller Thunderbolt
    SA-250 TMD
    Squarewave 200
    Thunderbolt AC/DC
    1951 G.E. welder

  7. #7
    Join Date
    Feb 2017
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    Re: SA 250 help

    Quote Originally Posted by Blocker View Post
    If it were mine, I think I would just keep an eye on the oil consumption and not worry too much until it started using some.


    Lincoln SA-250
    Lincoln SW 200
    Miller Thunderbolt
    Ok, after how much oil consumption should I worry and what would be my course of action?

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  8. #8
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    Re: SA 250 help

    I am not sure a good number to give you, but I think if I had to add oil every couple days I would be pretty worried. If it is blow by an set of rings would probably be the next step.


    Lincoln SA-250
    Lincoln SW 200
    Miller Thunderbolt
    SA-250 TMD
    Squarewave 200
    Thunderbolt AC/DC
    1951 G.E. welder

  9. #9
    Join Date
    Feb 2017
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    11

    Re: SA 250 help

    Quote Originally Posted by Blocker View Post
    I am not sure a good number to give you, but I think if I had to add oil every couple days I would be pretty worried. If it is blow by an set of rings would probably be the next step.


    Lincoln SA-250
    Lincoln SW 200
    Miller Thunderbolt
    Dam. Ok. One thing i forgot to ask. When i first start it up theres this puff of black smoke and whenever it goes on high from idle it shoots out a puff of smoke but then goes away. Is that normal in diesel engines?

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  10. #10
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    Re: SA 250 help

    Mine does that too. If the gauge is right, it makes 60 psi oil pressure at idle too.


    Lincoln SA-250
    Lincoln SW 200
    Miller Thunderbolt
    SA-250 TMD
    Squarewave 200
    Thunderbolt AC/DC
    1951 G.E. welder

  11. #11
    Join Date
    Feb 2017
    Posts
    11

    Re: SA 250 help

    Quote Originally Posted by Blocker View Post
    Mine does that too. If the gauge is right, it makes 60 psi oil pressure at idle too.


    Lincoln SA-250
    Lincoln SW 200
    Miller Thunderbolt
    I dont know if its right because my gauge is all the way up like at 80 even at idle. Do you think that would contribute to the excessive blow by.

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  12. #12
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    Re: SA 250 help

    I am not sure. I guess it would aid in pushing more oil somewhat. I am not sure it would have a big difference though. Have to think about that.


    Lincoln SA-250
    Lincoln SW 200
    Miller Thunderbolt
    SA-250 TMD
    Squarewave 200
    Thunderbolt AC/DC
    1951 G.E. welder

  13. #13
    Join Date
    Feb 2017
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    11

    Re: SA 250 help

    Quote Originally Posted by Blocker View Post
    I am not sure. I guess it would aid in pushing more oil somewhat. I am not sure it would have a big difference though. Have to think about that.


    Lincoln SA-250
    Lincoln SW 200
    Miller Thunderbolt
    Alright well ill keep an eye on the consumption. Would this machine stil be good for a pipeline job

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  14. #14
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    Re: SA 250 help

    We will let someone else help you with that. Never done of that myself.


    Lincoln SA-250
    Lincoln SW 200
    Miller Thunderbolt
    SA-250 TMD
    Squarewave 200
    Thunderbolt AC/DC
    1951 G.E. welder

  15. #15
    Join Date
    Feb 2017
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    Re: SA 250 help

    Quote Originally Posted by Blocker View Post
    We will let someone else help you with that. Never done of that myself.


    Lincoln SA-250
    Lincoln SW 200
    Miller Thunderbolt
    Ok well thanks for the help man really appreciate it

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  16. #16
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    Re: SA 250 help

    I think that is what you have going on. That would be my first thought on my own machine. I hope it runs a long time the way it is now. The Perkins are not too expensive or hard to find parts for I hear. They are FAR more common than the 250 I have which has the Continental Diesel. Best of luck to you and hope it holds up!


    Lincoln SA-250
    Lincoln SW 200
    Miller Thunderbolt
    SA-250 TMD
    Squarewave 200
    Thunderbolt AC/DC
    1951 G.E. welder

  17. #17
    Join Date
    Nov 2012
    Posts
    108

    Re: SA 250 help

    its blow by and that means your engine is worn out, the rings are worn and that lets the air go past on the compression stroke. rebuild it before you start a steady job then it wont screw up when you really need it. 7000 hours is a lot for a perkins engine and run 40 or 50 weight oil in it not 15w-40
    a cheap in frame rebuild should not be too hard, just put new rings and rod bearings in it and have the head rebuilt and it should be good for a few more years
    Last edited by cub102; 02-28-2017 at 08:16 AM.

  18. #18
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    Dorset, UK
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    Re: SA 250 help

    Rebuild kit is not expensive:

    http://www.ebay.co.uk/itm/Massey-Fer...3D272396109383

    Perkins 152 is probably the cheapest tractor engine out there to rebuild - but to be honest, having run a lot of them in tractors, if it starts, doesn't smoke too much and doesn't overheat, I'd just carry on using it.

    Coolant leaks are something to worry about, a bit of ring wear and blowby isn't, in my experience of these engines in tractors, and diesel engines in general.
    Lincoln Weldanpower 250 d10 Pro
    200 amp Hayter 'mighty midget'
    DIY suitcase feeder/spool gun controller
    Miller HF-251
    Hitachi 300-gp2 AC/DC tig
    Hypertherm PMX30 Air
    Harrison 600 universal mill
    Boxford 500 VSL lathe
    12kw Rotary phase converter

  19. #19
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    Feb 2017
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    11

    Re: SA 250 help

    Quote Originally Posted by HughF View Post
    Rebuild kit is not expensive:

    http://www.ebay.co.uk/itm/Massey-Fer...3D272396109383

    Perkins 152 is probably the cheapest tractor engine out there to rebuild - but to be honest, having run a lot of them in tractors, if it starts, doesn't smoke too much and doesn't overheat, I'd just carry on using it.

    Coolant leaks are something to worry about, a bit of ring wear and blowby isn't, in my experience of these engines in tractors, and diesel engines in general.
    Awesome really appreciate the advice i just got this machinr and its my firdt ine so still learning new things. Before i head out to a job ill do a quick tune up just for good luck

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  20. #20
    Join Date
    Oct 2013
    Location
    cntrl FL
    Posts
    887

    Re: SA 250 help

    Agkits.com is another place you can look.
    Last edited by BYW200; 02-28-2017 at 07:08 PM.
    SA 200s : 1944 1963 1965 1969 1980 1982
    1981 SA 250 D3.152 DC only
    2004 Ranger 10,000
    Lincoln Pro Mig 135
    Miller Load Bank
    Hobart GPB 258 Pipeliner
    Hobart GPB 261 Mainliner
    Hobart Airforce 250
    Everlast PA 200st

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