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Fixed: V6 Cutting out at cruising speeds?

Discussion in 'Early CJ5 and CJ6 Tech' started by sparky, May 14, 2006.

Page 26 of 50
  1. Jul 31, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Re: V6 Cutting out at cruising speeds?

    I've an old cap in the shed.
     
    sparky, Jul 31, 2006
    #501
  2. Jul 31, 2006
    blevisay

    blevisay Oh Noooooooooooooooo! Staff Member

    Portland Tn.
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    Re: V6 Cutting out at cruising speeds?

    Get cutting!
     
    blevisay, Jul 31, 2006
    #502
  3. Jul 31, 2006
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    12,385
    Re: V6 Cutting out at cruising speeds?

    Checking the intake is sounding like a gud idea! Hmmmm, if it was running extremely lean.............
     
    Glenn, Jul 31, 2006
    #503
  4. Jul 31, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Re: V6 Cutting out at cruising speeds?

    I mean, I've looked at it when I had it off, I didn't think it could be causing any problems, but it might be. A little RTV might be in order here...
     
    sparky, Jul 31, 2006
    #504
  5. Jul 31, 2006
    MOP

    MOP Active Member

    Pullman, WA
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    Re: V6 Cutting out at cruising speeds?

    You are more than welcome to remove and keep my coil R)

    I have started to take it out a few times and remembered why I left it there.
     
    MOP, Jul 31, 2006
    #505
  6. Jul 31, 2006
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
    Joined:
    Jul 30, 2003
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    8,525
    Re: V6 Cutting out at cruising speeds?

    not to muddy the issue....but
    I was told there are 3 diff dist shafts possible in HEI V6 dists
    if you buy FLAPS as I did, you never know what you're going to get
    but for the record, my HEI spit and spat under load so much, I went to the delco/pertronix set-up when I couldn't figure out the FLAPS HEI.
    I never tried to verify/confirm the info or get the scoop, but I have no reason to doubt the guy who told me this.
    ymmv
     
    jpflat2a, Jul 31, 2006
    #506
  7. Jul 31, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Re: V6 Cutting out at cruising speeds?

    Mine's not a FLAPS unit AFAIK. I bought it used.

    Again, I have serious doubts it's even related to the distributor. Strange things happen, but to have two different distributors create the same problem and they're different styles?

    Correlation <> Causation :)

    In this case it may, but I have other leads to follow first before swapping distributors again and again and again and again.
     
    sparky, Jul 31, 2006
    #507
  8. Jul 31, 2006
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    Re: V6 Cutting out at cruising speeds?

    I only mention this as it sorta pertains to what Bill is saying.....
    and don't forget, it's possible you could have had 2 problems at the same time
    standing looking at the engine, I don't see anything other than the carb and/or dist as the cause of the problem (at this point in time)
    I'd send you my Presto but it's going to Colo shortly...
     
    jpflat2a, Jul 31, 2006
    #508
  9. Jul 31, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Re: V6 Cutting out at cruising speeds?

    I've a Presto sitting in front of Linus right now. Two actually.
     
    sparky, Jul 31, 2006
    #509
  10. Jul 31, 2006
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    Re: V6 Cutting out at cruising speeds?

    known good when removed ?
     
    jpflat2a, Jul 31, 2006
    #510
  11. Jul 31, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Re: V6 Cutting out at cruising speeds?

    Yes, did not exhibit these symptoms when we pulled it from MOP's Jeep.
     
    sparky, Jul 31, 2006
    #511
  12. Jul 31, 2006
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
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    Mar 4, 2003
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    5,474
    Re: V6 Cutting out at cruising speeds?

    You want me to send a known good HEI unit?
     
    Warloch, Jul 31, 2006
    #512
  13. Jul 31, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Re: V6 Cutting out at cruising speeds?

    Notchet. I appreciate the offer, if it comes down to it, I'll take you up on it. :)
     
    sparky, Jul 31, 2006
    #513
  14. Jul 31, 2006
    BlueFlu

    BlueFlu past owner of some ecj5's

    Hermitage, TN
    Joined:
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    Re: V6 Cutting out at cruising speeds?

    Thought you checked for vacum leaks on the intake already. :?
     
    BlueFlu, Jul 31, 2006
    #514
  15. Jul 31, 2006
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
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    5,474
    Re: V6 Cutting out at cruising speeds?

    Got several - I will even run them in my engine before I send them to you to make sure all gremlins have been whacked.
     
    Warloch, Jul 31, 2006
    #515
  16. Jul 31, 2006
    MOP

    MOP Active Member

    Pullman, WA
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    Re: V6 Cutting out at cruising speeds?

    You can use my DUI and save Warloch the shipping. You are also welcome to my plug wires, carb, fuel tank, fuel pump, MSD, and any other parts that will help figure this recalcitrant gremlin out.
     
    MOP, Jul 31, 2006
    #516
  17. Jul 31, 2006
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    Re: V6 Cutting out at cruising speeds?

    {looking at map}
    wondering how long a drive from Durango to St. George
     
    jpflat2a, Jul 31, 2006
    #517
  18. Aug 1, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Re: V6 Cutting out at cruising speeds?

    Ok, so where I am with this.

    Last nite the ignition module died. Troubleshooting to be sure I was getting good power to the coil I hooked up to the battery. I then forgot to disconnect it when it didn't start and baked my coil.

    MOP lent me an ignition module from his DUI HEI and I had a spare HEI coil at home.

    So last nite I put in the new ignition module and coil. While I was doing this, the plug wires (new last fall) had corrosion in them. :rofl: I put dielectric grease in the boot when I put them on.

    The cap looks fine. It's a NAPA with brass terminals, but seems fine, I can clean it up. Seeing the corrosion makes me wonder if that's not the problem or the module was failing or both and the flat camshaft magnified it? Still that doesn't explain why it all started with the Delco.

    I didn't do much else than cruise around the block this AM to confirm it ran all right. It does. I didn't want to risk driving it any farther yet before work.
     
    sparky, Aug 1, 2006
    #518
  19. Aug 1, 2006
    blevisay

    blevisay Oh Noooooooooooooooo! Staff Member

    Portland Tn.
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    Re: V6 Cutting out at cruising speeds?

    Mark (Manden68 remember him) had a problem with modules and went through several to get a gud one.

    I got to thinking. You said the Vac advance was missing on the HEI you got. That tells me that there was something going on and just like timing someone allways messes with it. Removing / disconnecting the advance seems to allways happen. bet when they removed it they moved the pick up and took the ign off centerline and the coil is firing on the rise or fall of the ign sine wave, you added the advance that now just made it worse.
     
    blevisay, Aug 1, 2006
    #519
  20. Aug 1, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
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    Re: V6 Cutting out at cruising speeds?

    No, the vacuum advance was present on the odd fire HEI I purchased as it should've been. I just replaced the stock unit with an adjustable unit. MOP's Delco did it with and without the vacuum advance hooked up too.

    The even fire unit that was previously installed was a computer controlled 7 pin module unit. Computer controlled advance, hence no vacuum or mechanical.
     
    sparky, Aug 1, 2006
    #520
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