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  1. #1
    Platinum Member Mark Page's Avatar
    Join Date
    Sep 2009
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    559
    Location
    Maryland
    Tractor
    Massey Ferguson 2615 48hp, 4wd, loader

    Default PSI

    How much pressure does a diesel engine use to force fuel through the injectors? No doubt not all are the same.
    Gear Up and Throttle Down.

    2011 Massey 2615, 7ft Woods Rear Discharge Finish Mower, 6 ft Lucknow Snow Blower, Danuser post hole digger with 12" and 24" augers, 350 lb 3 pt broadcast spreader, 7ft scraper blade, 7 ft. drag harrow, JD GT 275 rider with 38" snow blower attachment.


  2. #2
    Gold Member
    Join Date
    Jan 2012
    Posts
    334
    Location
    Winchester Ky
    Tractor
    Allis Chalmers ED 40

    Default Re: PSI

    You're right, they are not all the same. Nozzle opening pressures can vary quite a bit for any number of reasons. I have seen some as low as 1800 psi and others at 3000 plus. Most tractors will fall in the 2200 to 2800 psi range

  3. #3
    Elite Member dex3361's Avatar
    Join Date
    Aug 2008
    Posts
    3,568
    Location
    N. of Charleston WV
    Tractor
    Kubota L4400-1 HST,FEL, 3x3 remotes, TNT. BX1500 54 mmm

    Default Re: PSI

    Quote Originally Posted by Mark Page View Post
    How much pressure does a diesel engine use to force fuel through the injectors? No doubt not all are the same.
    Indirect injection is around 1500 PSI and common rail injection around 15000 PSI and yes it varies with different systems. at least thats what i have read.
    Randall



    1Timothy Chapter 2:
    3 For this is good and acceptable in the sight of God our Saviour;
    4 Who will have all men to be saved, and to come unto the knowledge of the truth.
    5 For there is one God, and one mediator between God and men, the man Christ Jesus.
    From: The HOLY BIBLE

  4. #4
    Veteran Member Xfaxman's Avatar
    Join Date
    Feb 2013
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    2,410
    Location
    Meridian, OK
    Tractor
    Bobcat V417 Toolcat 5610 F TORO+Loader

    Default Re: PSI

    Quote Originally Posted by Mark Page View Post
    How much pressure does a diesel engine use to force fuel through the injectors? No doubt not all are the same.
    Some diesel truck engines are over 20,000 psi., my Duramax is 23,000 and newer ones are higher.

  5. #5
    Platinum Member catdozer's Avatar
    Join Date
    Sep 2011
    Posts
    508
    Location
    Indiana
    Tractor
    Bobcat CT235

    Default

    All depends on your pumps and injectors. I have a modified LBZ D-Max and I have a custom set of injectors and when in order to have keep fuel going at full HP I'm running close to 40,000psi. In the last few months since I've updated my fuel system I've doubled my HP and little over tripled my torque
    Bobcat CT235 with Deere Imatch, And a very bad addiction of attachments

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