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Fuel Return Line And Few Other Things

Discussion in 'Intermediate CJ-5 and CJ-6 Tech' started by Tree cutter 08, Apr 13, 2019.

  1. Apr 13, 2019
    Tree cutter 08

    Tree cutter 08 New Member

    Cleveland ga
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    Trying to finish this project up in the next few weeks. When I got the jeep it wasn't running. Pulled the motor to rebuild and everything is new or rebuilt going back in. Installed a edelbrock 4 barrel in intake. Do I need a fuel return line? If so how do I go about running it back? Fixing to order a dui distributor. Read somewhere about those style eating cam gears but it may have been the cheap Chinese model. Any experience of opinions on these? It's about 300 bucks but simple and clean install. I'll try to get a pic of the alternator tommrow. Got a few questions on how to wire it up. Thanks for the help, this site is great!
     
  2. Apr 14, 2019
    sterlclan

    sterlclan Member Sponsor

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    Some of the gears did eat cams is this a 304? The Delhi points distributor uses the same gear as an hei if you have the old gear put it on the new hei unit. No return on my 304
     
  3. Apr 14, 2019
    Walt Couch

    Walt Couch sidehill Cordele, Ga. Sponsor 2019 Sponsor

    cordele, Ga.
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    Later "dimpled" gears for both window cap point, type and early HEI distributors. The dimple has two functions. First, the dimple is a balancing hole to balance the gear in its rotation. Second, the reason for the balancing and dimple, to adjust for the rotor firing bar weight on the distributor rotor. To install the gear in its correct position, the dimple should be aligned with the firing bar tip on the rotor.
    Not all GM dist driven gears had the dimple.
     
  4. Apr 14, 2019
    timgr

    timgr Jeepin' Nerd Sponsor

    Medford Mass USA
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    Some of the CJs have a return line - my current '75 does and both of my previous California Jeeps ('73 304 and '75 258) did. It would be helpful to put your year, model and equipment in your sig, then it's always present in your posts.

    I would not change distributors unliess I owned a '75-77 with the troublesome Prestolite BID ignition. Again, we need more info to answer your question. Davis is a reputable seller and are likely using a proper distributor gear. There have been instances of aftermarket HEI distributors destroying the cam and distributor gear.
     
  5. Apr 14, 2019
    Tree cutter 08

    Tree cutter 08 New Member

    Cleveland ga
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    Yes mine is a 75 and and remember seeing prestolite on something. Thanks for the advice on the distributor. Here's a pic of the alternator. The wiring harness was rigged so bad over the years I just cut everything out and replaced it.
     

    Attached Files:

  6. Apr 14, 2019
    Tree cutter 08

    Tree cutter 08 New Member

    Cleveland ga
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    I not sure but I think the volatge regulator was mounted to the pass fender. Had 4 wires to it. Is it possible to to get another alternator with internal volatage regulator to simplify wiring?
     
  7. Apr 14, 2019
    Unkel Dale

    Unkel Dale delivery on my Jeep from Ft. Campbell, Ky.

    Pittsburgh, Pa.
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    Look up the 10/12 SI alternator 1 wire and three wire swap conversations in here
     
  8. Apr 14, 2019
    timgr

    timgr Jeepin' Nerd Sponsor

    Medford Mass USA
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    232/258 Jeeps in 1975 came with a 10SI Delco alternator. All Jeeps used Delcos by 1979 (maybe '78?). As mentioned, these alternators (10SI/12SI) have an internal regulator. They are commonly swapped in. Just follow the 6-cylinder case on your factory wiring diagram and adjust the brackets.
     
  9. Apr 14, 2019
    Tree cutter 08

    Tree cutter 08 New Member

    Cleveland ga
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    Thanks guys, ordered one this evening. Chomping at the bit to get this thing running. Maybe have it going by this weekend to break the engine in.
     
  10. Apr 14, 2019
    timgr

    timgr Jeepin' Nerd Sponsor

    Medford Mass USA
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    upload_2019-4-14_20-59-23.png

    Motorola 8AL - it's described in the TSM (picture above is from the '75 TSM). Good to replace it with a 10SI.
     
    Last edited: Apr 15, 2019
  11. Apr 15, 2019
    Tree cutter 08

    Tree cutter 08 New Member

    Cleveland ga
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    How would you recommend tying in the return line? The carb only has a fuel inlet line. Seen a pic of a return line running from the top of a fuel filter. Is that the correct setup?
     
  12. Apr 15, 2019
    sterlclan

    sterlclan Member Sponsor

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    If it had one yes the filter has the nipple for the return line.
     
  13. Apr 15, 2019
    Tree cutter 08

    Tree cutter 08 New Member

    Cleveland ga
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    I may see if I can find one. Thanks
     
  14. Apr 15, 2019
    sterlclan

    sterlclan Member Sponsor

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    The wife’s 76 has a 258 and a return filter look it up for that if you have trouble
     
  15. Apr 15, 2019
    zila

    zila I throw poop

    Rock Springs,...
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    It's a good lick ditching the Crapola Alt.. I did mine after going through 2 volt regs and the alt wouldn't run around water.. I used a 3 wire Delco alt. Many like the one wire for simplicity of wiring.
     
  16. Apr 15, 2019
    sterlclan

    sterlclan Member Sponsor

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    I use three wire delco on everything Easy to get a replacement
     
  17. Apr 15, 2019
    zila

    zila I throw poop

    Rock Springs,...
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    Yes.. Wiring is a bit harder to sort, but bein as I am an electrician I figured it out. Mine is a CS 130 I believe..
     
  18. Apr 16, 2019
    Tree cutter 08

    Tree cutter 08 New Member

    Cleveland ga
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    This is what they give me. It's suppose to have a built in regulator. But there's a sticker pointing to regulator. What do y'all think? I've got a alternator power wire and a alternator exciter wire coming from the harness.
     

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  19. Apr 16, 2019
    timgr

    timgr Jeepin' Nerd Sponsor

    Medford Mass USA
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    Motorola 8AL, same as what you have. Uses an external regulator. Take it back and choose another parts store.
     
    zila likes this.
  20. Apr 16, 2019
    Tree cutter 08

    Tree cutter 08 New Member

    Cleveland ga
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    That's what I was thinking. They swore it was different and had a built in regulator
     

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