SA200 Oil Pressure
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  1. #1
    Join Date
    Oct 2008
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    Madison GA
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    179

    SA200 Oil Pressure

    Early 70's SA200 Continental F163
    After warm-up the oil pressure is running around 10 psi at idle (consistent on two different gauges)
    The engine doesn't smoke of have blow-by while welding
    Continental manual says minimum 7 psi at idle
    Is this is to low for long term reliability?

  2. #2
    Join Date
    Jan 2016
    Location
    northeast USA
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    5,060

    Re: SA200 Oil Pressure

    whats the pressure when cold? my sae 400 doesnt drop but a few pounds after warmup and stays around 30psi

  3. #3
    Join Date
    Nov 2012
    Location
    ROCKVILLE ,,VA
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    434

    Re: SA200 Oil Pressure

    Correct with minium on 7 psi and it 30 to 40 max high pressure,,, you can increase pressure by adding up to 4 washer under relief valve hex cap it located under carb side of block near end of the vent breathing tube,, thinking used 5/16 s/s steel washer? or 1/4"? if got your manual the organe manual is on page 69 the white and red manual it on page 71,,so try get your max pressure up 35 psi range would be good

  4. #4
    Join Date
    Oct 2008
    Location
    Madison GA
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    Re: SA200 Oil Pressure

    Thanks for the replies
    Charlie I did find the details on page 69(grainy online manual).
    Got a 4 year old taking my extra time right now but I'll report back the first of the week.

  5. #5
    Join Date
    Oct 2008
    Location
    Madison GA
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    179

    Re: SA200 Oil Pressure

    Got some time and much thanks for the help
    Added four 6mm stainless steel washers and picture shows the results
    The second picture shows the location of the relief valve (1" plug, center of block behind the carburetor)
    Attached Images Attached Images   

  6. #6
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    Nov 2012
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    ROCKVILLE ,,VA
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    434

    Re: SA200 Oil Pressure

    Good ,,,what get high idle?

  7. #7
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    Oct 2008
    Location
    Madison GA
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    Re: SA200 Oil Pressure

    That is on high
    Low idle drops less than 5 psi

  8. #8
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    May 2008
    Location
    Orange, TX
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    17,343

    Re: SA200 Oil Pressure

    Less than 5psi at low idle (900-1000rpm) is not a good sign. As you've already stated, Continental spec is 7psi min at engine idle (600-1000rpm).

    I'd have to say either the oil pump or main/rod/cam bearings or all have excessive wear.
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  9. #9
    Join Date
    May 2008
    Location
    Orange, TX
    Posts
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    Re: SA200 Oil Pressure

    Where are you checking the pressure? Did you install an aftermarket oil filter? If so, which 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!

  10. #10
    Join Date
    Oct 2008
    Location
    Madison GA
    Posts
    179

    Re: SA200 Oil Pressure

    Thanks Duane
    I've checked two ways - original gauge on left side of block replaced by an owner installed a new NAPA gauge in the faceplate. New gauge plumbed in the same hole. Pressure was consistent between the two.
    Oil filter is original 1050 upside down configuration.
    Machine came to me not running having set for many years based on the rotten gas.
    I got it running and welding and owner upgraded wiring, auto idler, and gauges
    Engine does not have exhaust smoke, blow-by, or leaking seals.

  11. #11
    Join Date
    Oct 2008
    Location
    NorCal
    Posts
    262

    Re: SA200 Oil Pressure

    Should I read that as 5 psi at low idle, or 5 psi less than your photograph at high idle of 26 psi?
    Miller Dynasty 350
    Miller XMT 304

  12. #12
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    Oct 2008
    Location
    Madison GA
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    Re: SA200 Oil Pressure

    To be clearer, at low it drops less than 5 psi to about 25 psi
    Running speed is just under 30 psi (each mark on the gauge is 5 psi and the camera is at a slight angle).

  13. #13
    Join Date
    Oct 2008
    Location
    NorCal
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    262

    Re: SA200 Oil Pressure

    Quote Originally Posted by KC51 View Post
    To be clearer, at low it drops less than 5 psi to about 25 psi
    Running speed is just under 30 psi (each mark on the gauge is 5 psi and the camera is at a slight angle).
    Looks like you are right on spec, Run it!
    Miller Dynasty 350
    Miller XMT 304

  14. #14
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    May 2008
    Location
    Orange, TX
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    Re: SA200 Oil Pressure

    Quote Originally Posted by KC51 View Post
    To be clearer, at low it drops less than 5 psi to about 25 psi
    Running speed is just under 30 psi (each mark on the gauge is 5 psi and the camera is at a slight angle).
    Obviously I misunderstood your description and as crab fisherman stated, run it.
    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!

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