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Buick V6, Rochester carb - choke issues?

Discussion in 'Early CJ5 and CJ6 Tech' started by Slifter, Aug 1, 2006.

  1. Aug 1, 2006
    Slifter

    Slifter Big Willy

    Vancouver Island
    Joined:
    Jul 30, 2006
    Messages:
    34
    Ran out of gas yesterday, put gas in and it wouldnt start for a while, cleared and replaced filter, primed and got it running but wouldn't idle. Adjusted idle for now but the choke seems to be sticking, is there some rust or debris somewhere in my carb? Took the fuel line off as far as I could near the carb, no blockage. I am not ready to start taking this carb apart. I don't think I will ever be ready. I think there is supposed to be some small metal domed filter between the line and the carb, but I took off the big nut there that time, and it looks to have been removed.
     
  2. Aug 1, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    Automatic choke I'm guessing?

    Dust or dirt that causes the choke to stick close would be pretty substantial I'd think. Sounds more like it needs adjustment or you have dust or dirt IN the carburetor passages.

    That seems more likely if you ran out of gas and sucked stuff off the bottom of your fuel tank. Perhaps it made it past the fuel filter?
     
  3. Aug 1, 2006
    Slifter

    Slifter Big Willy

    Vancouver Island
    Joined:
    Jul 30, 2006
    Messages:
    34
    It definately made it past the fuel filter, I neglected to change it because I am not so smart. Apon further inspection, I realized that the choke was stuck open, causing it to stall. It seems to be loosening up a bit an I managed to lower the idle and it runs properly most of the time. If there is gunk in my carb, what steps should I take to locate and remove said gunk?
    Has anyone replaced the auto choke with a manual choke?
     
  4. Aug 1, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    I'd buy an aerosol can of carb cleaner and clean it up good before doing anything too rash. If that doesn't help a rebuild may be in order.
     
  5. Aug 2, 2006
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
    Joined:
    Sep 20, 2002
    Messages:
    3,437
    Yep, replaced my auto choke with a manual about 10 yrs ago. Can't really remember all that was involved, but it wasn't difficult at all. Just get a universal manual choke conversion kit at PepBoys or FLAPS and put it on...
     
  6. Oct 22, 2006
    Slifter

    Slifter Big Willy

    Vancouver Island
    Joined:
    Jul 30, 2006
    Messages:
    34
    I was not planning on adding to this post, but necessity requires it. Have had no major problems since the road side U-Joint replacement and running out of gas the first week I bought this JEEP.

    Recently, my Buick V6 has been experiencing low idles during start, and will stall if I dont give her gas. This problem has been brought to light due to the following:

    I was pulling out in the morning, hungover from a good party so I maybe didn't let it warm up as long as I should have. I made it a kilometer or so and stalled leaving a 4-way stop. Tried to fire it up, seemed to be no spark.

    Pushed it into a parking lot, called a friend and waited for my service vehicle to arrive (only had a screwdriver, a handful of change and my wallet). I did wash it the day before shortly before parking it, I had taken it out for 2 days of fairly intense trail riding. I thought I had gotten the cap wet so I removed that, dried it out, checked the points, etc... The plugs were black and dry, maybe with a tiny bit of oil in them. Cleaned the plugs, put everything back together and she fired up for 20 seconds then died again, probably because I was still hungover and my reflexes were slightly slower. Wouldn't start...

    As I was hungover, I was not into re-cleaning the plugs so I decided to let my buddy push me down the road which got it going. I drove it back to the farm where it sits now. I have not tried to start it again.

    I have heard that the blackened plugs can indicates unburned fuel, so perhaps my carb is **cked? If I did end up with some water in my carb, what now? If anyone is on Vancouver Island, feel free to come fix it.
     
  7. Oct 23, 2006
    dauntless_powered

    dauntless_powered SUB COB 2024 Sponsor

    Groton, CT
    Joined:
    Nov 3, 2003
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    1,000,081
    id just buy a rebuild kit, 20 bucks is not alot of money for peace of mind, and its alot easier than you think...i just did mine and had no issues!
     
  8. Oct 23, 2006
    Slifter

    Slifter Big Willy

    Vancouver Island
    Joined:
    Jul 30, 2006
    Messages:
    34
    Maybe I will try rebuilding the carb this weekend. It fired up lastnight like nothing ever happened so I will have to find the source of the problem before I get stranded somewhere a little more remote than a 7-11 parking lot.
     
  9. Oct 23, 2006
    AKCJ

    AKCJ Active Member

    Fairbanks, Alaska
    Joined:
    Aug 12, 2003
    Messages:
    1,035
    OK, it wouldn't start and the plugs were dry? Seems like the disappearing gas thing that some of us have had in the past. When this was happening to me I would pull the top off the carb and find the float bowl empty. Just add some gas and it's good to go until it happens next time. I never did figure it out as it somehow fixed itself.
     
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