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* Solved * - Firewall Paint Peeling V6

Discussion in 'Early CJ5 and CJ6 Tech' started by Focker, Mar 19, 2017.

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  1. wheelie

    wheelie beeg dummy 2024 Sponsor 2023 Sponsor

    Best practice is to minimize the use of rubber line in your fuel delivery system. For leaks, longevity and safety.
     
    wheelie, Mar 21, 2017
    #21
  2. Focker

    Focker That's a terrible idea...What time? Staff Member

    It's just a short piece that connects the stock plastic line to the metal line on the motor. I believe it to be the factory setup.
     
    Focker, Mar 21, 2017
    #22
  3. 1967 CJ5A

    1967 CJ5A Mike 2024 Sponsor 2023 Sponsor 2022 Sponsor

    So do you have hard plastic line running from the firewall on the passenger side of the engine that comes up between the seats to the top of an underseat tank?
     
    1967 CJ5A, Mar 21, 2017
    #23
  4. Focker

    Focker That's a terrible idea...What time? Staff Member

    I have a rear tank.
     
    Focker, Mar 21, 2017
    #24
  5. 47v6

    47v6 junk wrecker! 2023 Sponsor 2022 Sponsor

    Grease or other contaminants under paint or an incompatibility?
     
    47v6, Mar 21, 2017
    #25
  6. Focker

    Focker That's a terrible idea...What time? Staff Member

    What's odd about this is... The whole wall was prepared the same way. What I mean by that is, I either washed it or didn't (I'm sure I did). I do know that I didn't sand it. This is the only trouble area.

    I cleaned it with hot soapy water last night and found more wear on the same side.

    I don't think it's happening anymore. It was immediately after putting the engine back in and once more after touching up the paint. It's been months.
     
    Focker, Mar 21, 2017
    #26
  7. Focker

    Focker That's a terrible idea...What time? Staff Member

    Update...

    I taped a blue shop towel to the firewall to watch for the spray. I went to start the Jeep and no go. While inspecting the battery disconnect switch in the dash, I noticed the same looking stuff running through the seems where the bell housing plate meets the transmission plate. That's new. I once thought maybe the spray pattern was from the flywheel spinning, but that seems ridiculous... Right? It can't be from that?

    Now I have to figure out the no start problem. I drove it to a friend's house clear across town Sunday without issue.
     
    Focker, Mar 21, 2017
    #27
  8. Focker

    Focker That's a terrible idea...What time? Staff Member

    Another update...

    I got it running. Lose terminals at the alternator and a bad ring terminal crimp. I soldered it and it's good to go. You just can't trust a PO's crimp work. I should have soldered all of them last year. The good news is that it's not my push button switch. It sure had me stumped for a bit.

    As for the spray... It's definitely fuel. I saw misting on the shop towel and upon inspection it's coming from the fuel line. I didn't run it long enough to really inspect how.

    Yikes!
     
    Focker, Mar 21, 2017
    #28
  9. wheelie

    wheelie beeg dummy 2024 Sponsor 2023 Sponsor

    This could have turned out much worse had you not caught it.

    I didn't know there were plastic lines in use on these old JEEPs back then. I figured steel.

    My fuel line goes to an inline filter at the front left of the engine, then on to the carb. Not that it's original. I'm not sure. My filter has a return back to the tank as well.
     
    wheelie, Mar 21, 2017
    #29
  10. PeteL

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


    Be warned there is some real :poo: fuel line being sold around.
    I had a piece on my Harley rot off in less than 12 months and it dumped a full tank of fuel on the barn floor.:mad::mad::mad:

    Insist on top-quality, SAE, American made, from a reputable FLAPS.
     
    PeteL, Mar 21, 2017
    #30
  11. Keys5a

    Keys5a Sponsor

    If your fuel line is misting on the firewall, that is much more flamable than a stream of fuel. It takes a simple spark, or even static it ignite a mist. Has to do with air/fuel ratio. A stream of fuel is often too rich to ignite.
    Consider yorself lucky, especially with a bad alternator connection nearby. Do you carry a fire extinguisher?
    -Donny
     
    Keys5a, Mar 21, 2017
    #31
    47v6 likes this.
  12. Focker

    Focker That's a terrible idea...What time? Staff Member

    Yes
     
    Focker, Mar 22, 2017
    #32
  13. Twin2

    Twin2 not him 2024 Sponsor 2023 Sponsor 2022 Sponsor

    I got the same plastic tubing . when I replaced the rubber hose on ends . I put a sleeve inside of tubing so that the hose clamp wouldn't smash tube . when you tighten up rubber hose
     
    Twin2, Mar 22, 2017
    #33
    Focker likes this.
  14. PeteL

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



    [​IMG]

    Like that. But I wouldn't worry too much, a little fuel/air explosion never hurt anyone… not!o_O
     
    PeteL, Mar 22, 2017
    #34
    Focker and Twin2 like this.
  15. Focker

    Focker That's a terrible idea...What time? Staff Member

    Here's the bad piece...I may be at fault here? It either cracked from being tightened...Or...I sliced it when I cut the old rubber line of this plastic line? :whistle:
    [​IMG]
     
    Focker, Mar 22, 2017
    #35
  16. Focker

    Focker That's a terrible idea...What time? Staff Member

    Solved with a longer rubber fuel line that puts the connection under the firewall and I added a metal sleeve inside the plastic fuel line.

    Thanks.
     
    Focker, Mar 22, 2017
    #36
  17. Framer Mike P

    Framer Mike P Member

    Wow! Being attentive paid off - Glad we didn't lose you or the the Jeep.
     
    Framer Mike P, Mar 22, 2017
    #37
    Focker likes this.
  18. FinoCJ

    FinoCJ 1970 CJ5 Staff Member

    I sliced mine just like that when I was cutting off the old rubber connection a year or so ago. I like the idea of the metal insert - it can be a PITA to get the hose clamp, rubber hose and plastic line all put together well and its easy to crush the plastic line by over tightening the clamp. Glad you got it figured out and its a simple fix all around.
     
    FinoCJ, Mar 22, 2017
    #38
  19. wheelie

    wheelie beeg dummy 2024 Sponsor 2023 Sponsor

    I think many of us can take a lesson from this. Taking a few minutes to give our vehicles a once over before and after use can pay dividends. Might never find a thing wrong but, the one time you do could save your life, someone else's life, or maybe your classic car.
     
    wheelie, Mar 22, 2017
    #39
    Focker and Bowbender like this.
  20. PeteL

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

    Agree. That's a huge benefit of being your own mechanic.
    Every time you have your head under the vehicle you are able to spot other potential problems before they cause trouble.
     
    PeteL, Mar 23, 2017
    #40
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