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F134 Oil Pressure

Discussion in 'Early CJ-5 and CJ-6 Tech' started by gotime, Apr 8, 2019.

  1. Apr 11, 2019
    47v6

    47v6 junk wrecker! Sponsor

    Washington DC.
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    Thats what I always did. Once I figured out how that bypass filter design worked, I wondered why anyone bothered to run its at all. I guess something is better than nothing though.. Northstar willys.. I bought stuff from them over 10 years ago..Guess I wont be buying from them anymore..
     
  2. Apr 11, 2019
    Mcruff

    Mcruff Earlycj5 Machinist Sponsor

    Albertville, AL
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    Sep 22, 2002
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    Bypass filter systems have been around for years. You guys are acting like the oil doesn’t get filtered. All of it gets filtered it may take 2 or 3 trips thru the engine but it all gets filtered. That is surely better than no filter, especially when it probably takes all of 15 seconds to pump all the oil in the pan thru the engine once, if it takes that long

    Kind of like the F head power steering thing robbing all the hp.
     
    PeteL likes this.
  3. Apr 11, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member Sponsor

    Apopka, Fl
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    Like I previously posted, anyone who has wiped any sludge whatsoever out of a canister knows that a bypass, canister system works much better than it gets credit for.
     
  4. Apr 11, 2019
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member Sponsor

    Tantallon, Nova...
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    Most of the pump output does go through the canister, at least in a reasonably good condition engine. I've pumped oil into a block with the pan off, the bearings really only weep, there's a gusher coming out of the timing cover area.
     
    47v6 likes this.
  5. Apr 11, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member Sponsor

    Apopka, Fl
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    Makes sense due to the design of course. The bearings are only going to have a film of oil and the pressure is obviously enough to supply that. Good test Howard.
     
  6. Apr 13, 2019
    Jrobz23

    Jrobz23 Member

    Northern, WI
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    Oct 3, 2016
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    My original engine lasted 61 years with no filter and prolly quite a harsh life on that farm. Even then, the bottom end was very good looking, and likely only needed a mild refresher.

    That being said, if there is no warranty of note to lose, I’d run a filter. I was planning on putting one on after I clean some stuff up.
     
  7. Apr 17, 2019
    gotime

    gotime Sick with the car bug

    Minneapolis,...
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    Oct 22, 2007
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    Sigh, I checked the orifice on my filter housing and it's .070 or at least its bigger than .040. I'm somewhat confused - is the right orifice to measure the one in the filter housing or the fitting on the timing gear cover? The manual makes it seem like it's on the timing cover but I read in this thread someone re-drilled their housing it seems. F134 Timing Gear Oiling. Are they separate issues? When looking at the fitting going into the timing gear cover, it is way bigger than .070 and appears to be a standard flare fitting type.

    So which is it? How do I correct it?

    Am I overthinking and over worrying about this?
     
    Last edited: Apr 17, 2019
  8. Apr 17, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member Sponsor

    Apopka, Fl
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    No, it's not on the filter housing. On the very front of the block is where it's at. You would have to remove the timing cover to get to it.
     
  9. Apr 17, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member Sponsor

    Apopka, Fl
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    Do you have a factory service manual?
     
  10. Apr 17, 2019
    gotime

    gotime Sick with the car bug

    Minneapolis,...
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    Yes I do.

    Oh man, I feel like an idiot. I just reread the section. It's clear about the jet being in the block.

    I'm sure mine has the right one as it's later model.

    LOL - it's been a long day.
     
    Last edited: Apr 17, 2019
    Glenn likes this.
  11. Apr 17, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member Sponsor

    Apopka, Fl
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    In the manual under the F-134 section it shows the front of the engine and the 2 gears. Just to the left of where the 2 gears mesh is the oil jet. There is also a paragraph that shows the serial number of the first engine that the proper jet was used.
     
  12. Apr 17, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member Sponsor

    Apopka, Fl
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    Join the club, I definitely have to reread things all the time. :)
     

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