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Oil pressure rise

Discussion in 'Mondial' started by JLF, Apr 11, 2019.

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  1. JLF

    JLF Formula 3

    Sep 8, 2009
    1,705
    #1 JLF, Apr 11, 2019
    Hey guys when I start my car I noticed the oil pressure gauge doesn’t start to read for probably close to 3 seconds after I crank the engine. So the engine is turning probably close to 1300 rpms with no oil pressure for a moment, that really bothers me. I looked for a relay that would kill the ignition so I could just crank it until I see an oil pressure rise and then actually start it after that. I could not find a relay that I think would do that.
    Do you know of any way to kill the ignition temporarily?

    I saw a product in the for sale ads at Gavarino.com that will pre-oil your engine before you start it but I don’t really want to spend 1300 bucks on it.

    Thanks
    Jerry
     
  2. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,962
    Isle of man- uk
    #2 mike32, Apr 12, 2019
    The sender tends to give problems, think about changing it or check its connections. Does it show a low reading when it is hot at idle as this is not unusual
     
  3. JLF

    JLF Formula 3

    Sep 8, 2009
    1,705
    #3 JLF, Apr 12, 2019
    I’ll have to check. What do you consider low?
     
  4. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
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    30°30'40" N 97°35'41" W (Texas)
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    Steve Magnusson
    #4 Steve Magnusson, Apr 12, 2019
    Is the red oil pressure warning light "on" or "off" during those 3 seconds of engine running?
     
  5. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,106
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    Brian Crall
    #5 Rifledriver, Apr 12, 2019
    The needles are known to stick.

    Steves is a good question. Does the light go out?


    Oil pressure does not lubricate the engine, oil does and there is still oil on the bearings. Our Lamborghini LM002 takes about that long to make oil pressure due to a poorly designed oiling system. You know when oil pressure comes up even without the gauge because you can hear it flowing through the cooler. Been that way its whole life and never been an issue.
     
    paulchua likes this.
  6. johnk...

    johnk... F1 World Champ
    Owner

    Jun 11, 2004
    11,230
    CT
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    John Kreskovsky
    #6 johnk..., Apr 12, 2019
    Pretty typical.
     
  7. alexion

    alexion Formula 3
    Silver Subscribed

    May 20, 2013
    1,379
    New York
    #7 alexion, Apr 12, 2019
    Mine did this. It took a few seconds after starting for the oil pressure to bounce to 70.
     
  8. Meister

    Meister F1 Veteran
    Silver Subscribed

    Apr 27, 2001
    5,516
    Duluth, MN
    Full Name:
    The Meister
    #8 Meister, Apr 12, 2019
    This happens on both my mondials 85/88. I put it down to a lethargic gauge vs no actual oil pressure. Same way the fuel gauge takes its time to move after being on an incline.
     
    paulchua likes this.
  9. JLF

    JLF Formula 3

    Sep 8, 2009
    1,705
    #9 JLF, Apr 12, 2019
    Yea I figured it was probably normal. The car had good compression when I bought it so after 42000 miles I’m guessing it’s not a big deal. Still bothers me a little though.
     
  10. JLF

    JLF Formula 3

    Sep 8, 2009
    1,705
    #10 JLF, Apr 12, 2019
    I can’t recall but seemingly the light is on and goes out after the oil pressure gauge starts to rise. I’ll have to double check.

    Thanks for the input guys.
     
  11. srephwed

    srephwed F1 Veteran
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    Apr 29, 2012
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    street,md
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    fred brown
    #11 srephwed, Apr 13, 2019
    I put a one quart accumulator on mine. Plumbed into filter housing. With engine running open valve and accumulator charges. Mine goes up to 75 psi then close valve. When you start next time open valve and let run down to 20psi then close valve. start car and run the rest of the day. While putting it to bed open valve and recharge accumulator then close valve. Repeat every day. Mine is from Moroso and was I think around 150 dollars. sure would have been nice if Ferrari would have remotely mounted it right side up instead of up side down. Image Unavailable, Please Login Image Unavailable, Please Login
     
  12. davebdave

    davebdave Formula 3
    Owner Silver Subscribed

    Mar 18, 2007
    2,381
    Northern VA
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    Dave W
    #12 davebdave, Apr 13, 2019
    I have attributed this to the inverted oil filter although I may be completely off base. If our car has run within a few days I get oil pressure immediately, if it has sat for a few weeks then it takes a few long seconds which I chalk up to oil backing out of the filter check valve. If you are waiting for pressure on every start then maybe change the filter.
    Dave
     
  13. JLF

    JLF Formula 3

    Sep 8, 2009
    1,705
    #13 JLF, Apr 13, 2019
    Cool, good idea. I’ll look into it. Thanks.
     
  14. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
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    Brian Crall
    #14 Rifledriver, Apr 13, 2019
    Why?. No one has ever suffered shortened engine life from not having one.

    Ferrari engines dont get rebuilt because lubricated parts are worn out.
     
    johnk... likes this.
  15. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,962
    Isle of man- uk
    #15 mike32, Apr 14, 2019
    Dont waste your money- if u have to fit one of those are you covering a problem up.
     
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  16. srephwed

    srephwed F1 Veteran
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    fred brown
    #16 srephwed, Apr 14, 2019
    What does it hurt?
     
  17. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
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    Brian Crall
    #17 Rifledriver, Apr 15, 2019
    Modifications to solve non existent problems are never smart.

    Added failure points are an issue at the very least.
     

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