User Tag List

Results 1 to 8 of 8

Thread: how is the 4.2

  1. #1
    Newbie
    Join Date
    Jan 2009
    Location
    Fort Benning
    Posts
    23

    Branch
    Army
    Status
    Serving
    Served
    2006 to Present

    Closest Installation

    Fort Benning
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default how is the 4.2

    Im about to buy a wrangler,I want to know how are the 4.2 carbed jeep motors.Ive really never delt with carbs,so im a little worried.

    Also how are the 4 bangers in the 88 to 91 models?Were they carbed also.

    thanks

  2. #2
    THE She-Jeeper TheRenegade's Avatar
    Join Date
    Feb 2008
    Location
    Atlantic City
    Posts
    1,955

    Branch
    Army
    Status
    Retired
    Served
    1978 to 1998

    Closest Installation

    Fort Dix
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    I love my 258 in-line 6 (aka 4.2L) in my 85 CJ7!
    In fact I'm rebuilding a 82 donor engine and doing the Clifford Performance 6=8 package.
    They are work if you're unfamiliar with carbs, or want the easier fuel injection engines. They make Jeepin' fun!


    "I love the low-end grunt of my I6!"


    someone chime in on the 4bangers?
    Last edited by TheRenegade; 01-29-2009 at 20:12. Reason: missed second question....
    Getting my morning coffee at the mud truck. Don't ever talk to me until I've had my morning coffee. Seriously, don't. I'm venomous. @BronxZooCobra.

  3. #3
    Junior Member Madmacc's Avatar
    Join Date
    Jan 2009
    Location
    VaBch
    Posts
    109

    Branch
    Navy
    Status
    Retired
    Served
    1988 to 2008

    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default Carberated

    How does your carb'd rig act on extreme angles and off camber situations. Curious mind want to know.........

  4. #4
    Mountain Valley Customs
    Join Date
    Jun 2008
    Location
    Millmont
    Posts
    1,438

    Branch
    Air Force
    Status
    Served
    Served
    1996 to 2005

    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Jeep 4.2s are, IMO, a very good motor. There is a ton of aftermarket support for them, so upgrade parts aren't an issue. The carbs can be tricky, but once you learn their ins and outs, you'll be fine. If you have the money, the first two upgrades I would recommend are a DUI distributor and a fuel injection system. You won't regret either purchase.
    Mountain Valley Customs www.mvcustoms.com 570.217.7284
    Specializing in 4x4s and custom fabrication


  5. #5
    THE She-Jeeper TheRenegade's Avatar
    Join Date
    Feb 2008
    Location
    Atlantic City
    Posts
    1,955

    Branch
    Army
    Status
    Retired
    Served
    1978 to 1998

    Closest Installation

    Fort Dix
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Quote Originally Posted by Madmacc View Post
    How does your carb'd rig act on extreme angles and off camber situations. Curious mind want to know.........

    I'll let ya know after I do the engine swap/upgrade!
    Getting my morning coffee at the mud truck. Don't ever talk to me until I've had my morning coffee. Seriously, don't. I'm venomous. @BronxZooCobra.

  6. #6
    The Texan TexCJ7's Avatar
    Join Date
    Dec 2007
    Location
    Madisonville
    Posts
    704

    Branch
    Army
    Status
    Served
    Served
    2004 to 2008

    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)

    Default

    you can't kill the 4.2 i've tried, i did fry the computer but the motor its self is a beast
    2012 kawasaki Teryx4

    Sold-85 CJ7, 6 inch lift, siting on 36's, welded rear, lots of drain holes

    Sold-93 YJ, 4.0,

  7. #7
    Newbie KING-B's Avatar
    Join Date
    Jun 2008
    Location
    Eagle River
    Posts
    19

    Branch
    Army
    Status
    Serving
    Served
    1996 to Present

    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default FI kit, DUI ???

    Quote Originally Posted by crazy4ink View Post
    Jeep 4.2s are, IMO, a very good motor. There is a ton of aftermarket support for them, so upgrade parts aren't an issue. The carbs can be tricky, but once you learn their ins and outs, you'll be fine. If you have the money, the first two upgrades I would recommend are a DUI distributor and a fuel injection system. You won't regret either purchase.
    I have a 1990 4.2 and have put 3 carbs in this year,I'm done playin wth these carbs. Time to upgrade, I know that Quadratech and some other obvious places to order these kits. I was wondering where else i can look. Is this an easy swap ???
    "We are the people our parents warned us about"

  8. #8
    Junior Member
    Join Date
    Jan 2009
    Location
    Winston-Salem
    Posts
    305

    Branch
    Navy
    Status
    Served
    Served
    1984 to 2006

    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Quote Originally Posted by crazy4ink View Post
    DUI distributor
    I'm not sure if you meant HEI dizzy. From what I've read the DUI isn't worth the money. If looking for an easy, inexpensive upgrade the TFI/TeamRush idea works very well. You'll need to change out the Dist. cap (purchase a cap adapter), rotor and spark plugs for an '82 F-100 I6 300 cid engine. Here's the link, I know I missed something, http://www.jeepforum.com/forum/showthread.php?t=669495

    As for the carb, if you have the money for it, I would suggest either MPI (Mopar) or TBI (GM). I had the link for the TBI on someone elses post...I can't remember....
    If money is an issue then search for a local junkyard, go out and find a MC2100 carb (1.08 venturi size number should be in a circle on the throttle linkage side of the body of the carb), usually on older Ford trucks with the 302 engine, or an old school Grand Wagoneer.
    I've had my carbed CJ up in the Virginia mountains going up, and returning from some interesting hillsides, and the engine kept on keeping on. The MC2100 sure beats the crap out of the Carter BBD carb.
    Later, T.J.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Get the MJ Supporter Membership for a little less than $0.06 a day and get more space, 2 MJ Stickers and no banners ads. [Check it out]