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Added oil filter

Discussion in 'Early CJ5 and CJ6 Tech' started by hewebb, Mar 6, 2014.

  1. Mar 6, 2014
    hewebb

    hewebb New Member

    DFW area Texas
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    Dec 22, 2013
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    38
    I have a 1964 CJ-5 with the Hurricane engine. It appears that an oil filter has been added and it is mounted upside down above the alternator. It is fed from a line tee into the oil pressure sensing port. Then a line goes from the filter to the front case. I an concerned that this is robbing oil from the engine to feed the filter. I have about 600 miles on it and the tappets are getting noisy. Any opinions as to my concerns?

    Do any of you know of someone in the DFW area that is knowledgeable about these old jeeps that I can get with. I live near Burleson, TX
     
    Last edited: Mar 6, 2014
    hewebb, Mar 6, 2014
    #1
  2. Mar 6, 2014
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    This is "sort of" a standard setup for an oil filter installation. Originally "canister" type filters were used, fed from an oil gallery port at the front driver's side of the block, but later ( late 60's) spin on's became the stock setup. The main thing you need to be careful of with the spin on filters is that the correct filter element is used- you need one that restricts the oil flow, not a "full flow" type ( the canister types have a .050" restriction orifice at the outlet).

    I suggest you connect an oil pressure gauge to the port on the where the low oil pressure switch is supposed to connect (drivers side rear of the block) & see what you're really running.

    H.
     
    Howard Eisenhauer, Mar 6, 2014
    #2
  3. Mar 6, 2014
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Hills of NH
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    The line to the front case oils the timing gears, at least on the canister types. I'm not familiar with spin ons.

    According to my FSM, Jeep recommended a .040" timing gear oil jet to improve oil pressure to the #1 connecting rod bearing, after the .070" restriction in early models resulted in burned bearings.
     
    PeteL, Mar 6, 2014
    #3
  4. Mar 6, 2014
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    I think the line to the timing cover was more just a convenient spot to run it than anything else- as you pointed out there's a nozzle there to oil the timing gears, it's fed from the main oil gallery. Even at .040 there's a *lot* of oil comes out of it, way more than from the various bearings combined together.

    [​IMG]

    H.
     
    Howard Eisenhauer, Mar 6, 2014
    #4
  5. Mar 6, 2014
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Hills of NH
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    So the timing gear nozzle is not part of the filter oil return line... but I guess the filter still also needs to be restricted to avoid a pressure drop in the main oil gallery.

    30 years since I looked at mine, thanks for the clarification...
     
    PeteL, Mar 6, 2014
    #5
  6. Mar 6, 2014
    Bob-The-CJ

    Bob-The-CJ Member

    Italy, Texas
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    For the record Hewebb, I live in the Dallas area - I am Waxahachie, TX.

    I am not that familiair with the snip on filter you are talking about though
     
    Bob-The-CJ, Mar 6, 2014
    #6
  7. Mar 13, 2014
    hewebb

    hewebb New Member

    DFW area Texas
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    I have tried to determine if the oil filter is a free flow or not. I searched the interned for information on the filter that is installed and cannot find any flow information. I am tempted to remove the filter and order an original type with replacement core to insure that I am getting the proper restriction in the filter. I have not yet installed a pressure gage but that is next on my list.
     
    hewebb, Mar 13, 2014
    #7
  8. Mar 13, 2014
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    if you're that worried about it just disconnect the feed line & plug the the engine outlet port. Very early on oil filters were an option, the engine will run fine without it & better if the element is indeed full flow.

    Put an ad in the classifieds for a canister type filter housing if you want one, or perhaps someone here with a late 60's early 70's factory spin-on setup can supply the correct element #.


    H.
     
    Howard Eisenhauer, Mar 13, 2014
    #8
  9. Mar 13, 2014
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Hills of NH
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    Same canister type was common on military, industrial, and agricultural vehicles. Elements are easy to get.
     
    PeteL, Mar 13, 2014
    #9
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