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Thread: 3.0L engine swap

  1. #491
    Administrator Ron's Avatar
    Join Date:  Jun 2011

    Location:  North GA

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    Quote Originally Posted by Farrar View Post

    Car still shakes like a leaf in the wind.
    If you pulled the plugs one at a time and it acted normal, put a vacuum gauge on it...

  2. #492
    Owner since 2007 Farrar's Avatar
    Join Date:  May 2011

    Location:  Plantation, FL

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    Per y'all's suggestions, I had a look in the fuel bowl. It's pretty nasty in there.

    sediment1.jpg

    sediment2.jpg

    I'll check back in when I've cleaned it.
    DeLorean status: It's complicated.

  3. #493
    Not a DeLorean Guru
    Join Date:  May 2011

    Location:  Rochester, NY

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    I'd strongly consider taking the carb completely off the car and cleaning out all of the passages. Several times.
    -Mike
    1981 DeLorean, Carb LS4 swap completed
    1999 Corvette, cam/headers/intake manifold, 400 rwhp
    2005 Elise, stock
    2016 Chevy Cruze

  4. #494
    Owner since 2007 Farrar's Avatar
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    Quote Originally Posted by opethmike View Post
    I'd strongly consider taking the carb completely off the car and cleaning out all of the passages. Several times.
    Gonna do that on Monday.

    Also, considering that the spark plugs keep getting darker and darker, I wonder if some of the sediment I have seen may have prevented the power valve from closing all the way. So I'm going to flip the carb over and pull that out in the process of cleaning. (Or maybe just replace it - the whole kit is only $20.)
    DeLorean status: It's complicated.

  5. #495
    Not a DeLorean Guru
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    Would you be comfortable with rebuilding the carb entirely?
    -Mike
    1981 DeLorean, Carb LS4 swap completed
    1999 Corvette, cam/headers/intake manifold, 400 rwhp
    2005 Elise, stock
    2016 Chevy Cruze

  6. #496
    Owner since 2007 Farrar's Avatar
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    Quote Originally Posted by opethmike View Post
    Would you be comfortable with rebuilding the carb entirely?
    I don't see why not. I found a few how-to videos on YouTube and it looks like it would be pretty simple.
    DeLorean status: It's complicated.

  7. #497
    Not a DeLorean Guru
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    I'd go ahead and do it then. Shouldn't take more than an a few hours after a good overnight soak in some kind of cleaner.
    -Mike
    1981 DeLorean, Carb LS4 swap completed
    1999 Corvette, cam/headers/intake manifold, 400 rwhp
    2005 Elise, stock
    2016 Chevy Cruze

  8. #498
    Senior Member DMC-81's Avatar
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    Agreed. A few tips:

    - keep an organized work area on a light colored surface (so that you can see any small parts).
    - take your time
    - lay out the parts and take notes on where they go and their orientation if you don't have a rebuild manual or a detailed video.
    - use compressed air to ensure the passages are clean
    - be surgically clean overall
    -you can get couple spray cans of carberator cleaner for around $2 at Walmart or an Auto Parts store.

    I rebuilt a couple carberators years ago ( not your model mind you...mine were a 750 cfm Rochester Quadrajet and a 650 cfm Holley "Double Pumper" ) and I found when they are rebuilt and adjusted correctly, they perform just like new.

    Good luck with the job.
    Last edited by DMC-81; 11-12-2018 at 11:45 PM.
    Dana

    1981 DeLorean DMC-12 (5 Speed, Gas Flap, Black Interior, Windshield Antenna, Dark Gray)
    Restored as "mostly correct, but with flaws corrected". Pictures and comments of my restoration are in the albums section on my profile.
    2006 Dodge Magnum R/T (D/D)
    2010 Camaro SS (Transformers Edition)

  9. #499
    EFI'd dn010's Avatar
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    You might also consider a new fuel filter before your next run. If this is the Motorcraft 5200 carb, I have a clean main body (bare) and possibly other parts for it if you want them-I'd be glad to ship them off to you, I have a variety of carbs that have been sitting on my shelf for years that I have no use for.
    -----Dan B.

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