Sa200 airflow
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Thread: Sa200 airflow

  1. #1
    Join Date
    Apr 2015
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    Ft Qu'appelle, Saskatchewan
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    8

    Sa200 airflow

    Hi all, I have an SA200 in my current welding rig and am having overheating troubles. I think it stems from the unit being too close to the cab of the truck and not getting good airflow (among other things). Could anyone with a truck mounted SA200 tell me how far their unit is from the back window and how well it works for you.
    1974 Lincoln SA200
    2012 F350 Lariat
    2012 Triumph Bonneville
    1983 Honda CB750SC

  2. #2
    Join Date
    May 2007
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    2,453

    Re: Sa200 airflow

    my guess is thats not the problem. there designed to have doors on the side, and thats pretty closed up. i've seen guys have them right against the back of cab, and the bott half of radiator is blocked by side of truck, and they seem to be working. unless Saskatchmewan is on the equador or inline w/ mecury, something else might be wrong. or you can take the side door, hood etc off your own satisfaction
    Last edited by 123weld; 08-22-2015 at 09:56 PM.

  3. #3
    Join Date
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    Re: Sa200 airflow

    I'd sooner suspect a stuck thermostat (or no t-stat at all), partially plugged radiator or bad water pump (worn/corroded impeller).
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  4. #4
    Join Date
    May 2014
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    Re: Sa200 airflow

    One other thing to check, Make sure somebody didn't put the fan on backwards. The "cup" in the blades should face towards the radiator. Seen this one many times on old Continental powered forklifts.

  5. #5
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    May 2008
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    Re: Sa200 airflow

    Quote Originally Posted by 12V71 View Post
    One other thing to check, Make sure somebody didn't put the fan on backwards. The "cup" in the blades should face towards the radiator. Seen this one many times on old Continental powered forklifts.
    Good thinking! Forgot about that one.
    MM200 w/Spoolmatic 1
    Syncrowave 180SD
    Bobcat 225G Plus - LP/NG
    MUTT Suitcase Wirefeeder
    WC-1S/Spoolmatic 1
    HF-251D-1
    PakMaster 100XL
    '68 Red Face Code #6633 project
    Star Jet 21-110

    Save Second Base!

  6. #6
    Join Date
    Apr 2015
    Location
    Ft Qu'appelle, Saskatchewan
    Posts
    8

    Re: Sa200 airflow

    Thanks for the replies everyone. Picked up a thermostat, gasket and new rad cap and will install them this week. Didn't even think about the fan being backwards but will for sure check, I'm assuming the air is supposed to flow through the rad and back to the motor and out under the doors? Or the other way around? I'm not in front of my machine right now but I think mine blows air out of the rad and into the back of the cab.Thanks, Alistair
    Last edited by redbeardsask; 08-23-2015 at 09:08 PM.

  7. #7
    Join Date
    May 2014
    Location
    Central Wa. state
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    Re: Sa200 airflow

    The fan should be pushing air from the engine side through the radiator. With the doors on, this helps generator cooling and draws fresh air into the engine space, rather than pulling hot air in under the hood.

  8. #8
    Join Date
    Oct 2013
    Location
    cntrl FL
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    887

    Re: Sa200 airflow

    Quote Originally Posted by duaneb55 View Post
    I'd sooner suspect a stuck thermostat (or no t-stat at all), partially plugged radiator or bad water pump (worn/corroded impeller).
    What Duane said, The last few of the SA 200's that I have went through as far as cooling go's was loaded with lots of rust build up all the way up to the bottom of the freeze plugs. They were getting hot and boiling over until i flushed them out along with a stuck thermostat and plugged radiator.
    SA 200s : 1944 1963 1965 1969 1980 1982
    1981 SA 250 D3.152 DC only
    2004 Ranger 10,000
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    Hobart Airforce 250
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