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IDI OIL PRESSURE TO START

Discussion in '6.9L IH & 7.3L IDI Diesels' started by PROFG, Oct 10, 2019 at 8:04 AM.

  1. PROFG

    PROFG Full Access Member

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    Noticed while priming that spins faster after couple seconds cranking (oil pressure starts up). Would wear be improved by use of accumulator/lube prime pump or could I just keep shut off solenoid off until I see oil pressure (starts first compression anyway so still using single battery).
     
  2. PROFG

    PROFG Full Access Member

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    Anyone? That's crazy or don't worry @ it, or ????
     
  3. PROFG

    PROFG Full Access Member

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    Anyone? That's crazy or don't worry @ it, or ????
     
  4. riphip

    riphip Supporting Member Supporting Member

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    You are getting low pressure/High volume on the IDI engine. Some have added accumulator (way in the past) but you should be fine.
     
  5. FordGuy100

    FordGuy100 Registered User

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    Is it needed? No, there seems to be a pretty solid track record of IDI longevity when taken care of. Would it help? Absolutely.
     
  6. 79jasper

    79jasper Chickenhawk

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    I've seen one or two 6.2/6.5 guys do it, none on a 6.9/7.3 yet.
    If going off the factory "gauge," get a real gauge and compare.

    Sent from my SM-N960U using Tapatalk
     
  7. PROFG

    PROFG Full Access Member

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    I have a real gauge and video today it sat on zero until she started (cranking did not speed up like day before). Overnight @ 45F and yesterday @ 60F so maybe should change oil to 10-30 and try again. Don't remember whether gauge pressure or electric but will find out, maybe capillary tube slows response.
     
  8. 79jasper

    79jasper Chickenhawk

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    I wouldn't worry about it.
    What oil are you running now? I would go for a 5w-40.

    Sent from my SM-N960U using Tapatalk
     
  9. chillman88

    chillman88 Supporting Member Supporting Member

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    I ran Rotella 10w30 for the last two winters over here in NY, just because I got 5gal on sale at wallyworld. Didn't seem to make any difference really. IIRC the spec is SAE30 in winter so you should be safe.

    I agree with Jasper though, I'd run the 5w40 as long as you don't find that your engine drinks it like water. I thought about it but didn't feel like spending the extra money cuz I'm cheap lol.
     
  10. RetiringColt

    RetiringColt Supporting Member Supporting Member

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    I haven't installed one. But an accumulator would be nice for a turbo engine. Not for the start-up, but the engine shut-down. Save on the turbo. I try to idle the engine a bit before shut-down. Just can't justify the extra expense.
     
  11. PROFG

    PROFG Full Access Member

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    Same here, cheapest 3 qt Accusump @ $220 on fleabay so thought to try just holding FSO closed until cranking speeds up (but no speed up). Wanted to change oil/filter anyway so will try 5-30 and try to drain oil cooler / flush pan also. Accumulator better since would work for both shut down and start up.
     
  12. Kizer

    Kizer Supporting Member Supporting Member

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  13. PROFG

    PROFG Full Access Member

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    Thanks but found them and looking for something more in line of surplus / overstock (cheaper), but may have to go this way for pressure. More like this I might try for $90.

    Brand: SZMWKJ
    Model: MOI-0105
    Rated Voltage: DC 12V
    Adaptable Voltage: DC 11-18V
    No Load Current: 4A
    Working Current: 12A (3MPa)
    Flow: 1L/min
    Inlet Diameter: 6mm
    Outlet Diameter: 6mm
    Rated Power: 300W
    Rated Pressure: 5MPa
    Working Pressure: 0-10MPa
    Max Pressure: >18MPa
    No Load Speed: 3000 r/min(12V)
    Work Temperature: -10℃~80℃
    Apply for: Oi
    Net Weight: 730g
    Direction of Rotation: CCW (Look from the Motor Direction)
    Warranty: Two Years
    needed (60-90psi).
     
    Last edited: Oct 13, 2019 at 1:43 PM
  14. Kizer

    Kizer Supporting Member Supporting Member

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    I just thought they were cool. With accumulator (in my head) you would want 1 for pre lube and a separate 1 for shut down ... you could just put this pump on a timer + momentary switch and get both ... + no 3qt accumulator to find space for.
     
  15. PROFG

    PROFG Full Access Member

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    Your right, was planning on one pump or accumulator for start/stop (+ have another job possible for pump), secret until it works:D
     
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  16. BeastMaster

    BeastMaster Full Access Member

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    From above....

    Check this out:

    [​IMG]
    ---------------------

    I have some of these. Used them as transfer pumps. Nice little gear pump.

    Don't like to run em continuous...they run a bit hot for my liking. They use 3/8 inch fittings. The home Depot fittings fit.

    I think $300 is a bit pricey though.

    Try here...

    https://m.aliexpress.com/item/32740558700.html

    $100 ballpark. By the time you throw shipping in.

    Betcha this is where they get 'em.

    There are several vendors selling the same pump from what I see. Different pricing for pump and shipping.

    I have done a lot of business through AliExpress. Most of the industrial stuff has been on the up and up, but most of the cheap fashion stuff meant for retail resell has been a disappointment to me.
     
    Last edited: Oct 13, 2019 at 7:09 PM
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