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First Time CJ owner with some questions.

Discussion in 'Intermediate CJ-5/6/7/8' started by JeepDriver, Sep 19, 2005.

  1. Sep 19, 2005
    JeepDriver

    JeepDriver Member

    Concord, NC
    Joined:
    Sep 12, 2005
    Messages:
    278
    Hi All,
    I picked up a 72 CJ5 this weekend. It has a 30/44 combo with 304 and 3 speed and Dana 20. I have a few questions that I can't seem to find answers to through searching the site.

    1) Is there a cross reference chart that lists the vehicles from which I can get a Motorcraft 2100 carb? I see lot's on ebay but I am not sure if they are the right ones. Should it be marked 1.08 or 1.21 or something else?

    2) According to the research I have done the 3 speed I have should be a T15. However, when I ran the vin on the decoder on CJOffroad.com
    it came back as a T14a. The decoder states the jeep came with a 304 so it is not likely it was installed in place of the 6. Is this something that happened in 72 as the intro year for the intermediates?

    3) I need to replace some rusted body panels. Is there a preferred vendor for replacement sheet metal?

    4) Where can I find the foam to replace the stock cushions in the seats. Does someone sell contoured factory style replacements? Or do I have to get regular foam and make my own cushions?


    TIA

    Great site with lot's of info.

    Mike
     
  2. Sep 19, 2005
    timgr

    timgr Jeepin' Nerd 2020 Sponsor 2019 Sponsor

    Medford Mass USA
    Joined:
    Aug 10, 2003
    Messages:
    20,368
    Welcome from Boston!

    1) No, not that I know of. If you have the original carburetor, it can be rebuilt. You want the 1.08" venturi model that was used on Jeep V8s, Ford 302 V8s and maybe some Ford 351 V8s.

    2) IIRC the VIN only shows A, F or M for automatic, 3-speed manual or 4-speed manual. The model of transmission is not expressed. From 72-75, CJs with V8s only came with T-15s. Inline 6 cylinder engines came with the T-14. The decoder is wrong.

    3) Depends on where you are located. Classic Enterprises is good http://www.classicent.com/ (WI) as is JeePanels Plus http://www.jeepanelsplus.com/ (ME). (Putting your location in profile will be helpful).

    4) Somebody at ebay makes the covers, but I'd say if you have to rebuild the foam, you're better off finding another pair and recovering them or else buying some aftermarket seats. An upholstery shop could probably rebuild them for you, but I'd espect that it would be expensive.
     
  3. Sep 19, 2005
    plunkinberry

    plunkinberry Member

    Canonsburg, PA
    Joined:
    Nov 22, 2002
    Messages:
    102
    You may want a MC2100 with a larger venturi than the 1.08... My 304 must have a bit of work done to the motor, but mine won't run right with the larger 1.21 venturi - the 1.21 is a 360 cfm carb. I used to have a Holley 4412 (500 cfm) that I thought was just too big. The MC stumbles under acceleration.... I need to rebuild the Holley, but I plan to replace the MC with the Holley again. I'd offer you the MC, but it may not get done for several weeks (nobody laugh).
     
  4. Sep 19, 2005
    plunkinberry

    plunkinberry Member

    Canonsburg, PA
    Joined:
    Nov 22, 2002
    Messages:
    102
    Sorry, where are my manners; welcome from southwestern Pennsylvania.

    Where ya from?
     
  5. Sep 19, 2005
    JeepDriver

    JeepDriver Member

    Concord, NC
    Joined:
    Sep 12, 2005
    Messages:
    278
    Thanks for the replies. I have editied the profile. I am in Concord, NC. The Vin decoder thing is kinda strange but like I said all the research I have done says I have a T15 so I thought it weird the decoder would say T14a.

    As far as carbs, it seems that the 1.21 is a little easier to find. Would it be a mjaor issue to use one of these instead of a 1.08?

    I'll check into the sites listed for body panels.


    Mike
     
  6. Sep 19, 2005
    timgr

    timgr Jeepin' Nerd 2020 Sponsor 2019 Sponsor

    Medford Mass USA
    Joined:
    Aug 10, 2003
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    The Motorcraft carb should be something like a $10 item at the pick-your-part, so no great loss if you try it. Any 70s to early 80s Ford car, truck or van with a small V8 and a carburetor is likely to have one...

    The downside to a larger carburetor on a smaller engine is worse control over the air-fuel mixture at low speed. You may notice some hesitation or lack of throttle response at low speed with the larger carb. Most likely you can adjust that away by changing some of the settings and parts, at the cost of worse mileage and/or emissions.
     
  7. Sep 19, 2005
    JeepDriver

    JeepDriver Member

    Concord, NC
    Joined:
    Sep 12, 2005
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    278
  8. Sep 20, 2005
    JeepManEd

    JeepManEd New Member

    Joined:
    Aug 25, 2005
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    if you want to know what tranny you have....crawl under it and count the shift tower bolts. T14 will have 6 and the T15 will have 8.
     
  9. Sep 20, 2005
    timgr

    timgr Jeepin' Nerd 2020 Sponsor 2019 Sponsor

    Medford Mass USA
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    Yes, it is a 2100, it will fit and will run.

    However, it's missing several parts (choke linkage, choke housing, choke cover) on the side you can see. There's linkage on the other side that isn't shown too.

    I'd suggest you go to a wrecking yard and get a complete carburetor.
     
  10. Sep 20, 2005
    JeepDriver

    JeepDriver Member

    Concord, NC
    Joined:
    Sep 12, 2005
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    278
    Thanks Tim. There are not alot of junkyards around here that keep the older vehicles and the couple I know of our an hours drive. I'll try to get to one of them ASAP.


    Mike
     
  11. Sep 20, 2005
    timgr

    timgr Jeepin' Nerd 2020 Sponsor 2019 Sponsor

    Medford Mass USA
    Joined:
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    Wagoneers used the 2100 too ... you might try advertising on the "want to buy" board here: http://www.ifsja.org/cgi-bin/ubbcgi/ultimatebb.cgi ... the folks there are generally very helpful. BTW either a 2100 or a 2150 will work. The 2150 is the same except for the addition of an altitude compensator and changes in the carb body to accomodate it.

    A 2300 Holley is the same size and shape, and can be used with very few and minor changes. Sometimes you can find a 2V Holley, which would get you running. Not a great off-road carb in it's stock form though - the 2100 series Motorcraft is better.
     
  12. Sep 20, 2005
    JeepDriver

    JeepDriver Member

    Concord, NC
    Joined:
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  13. Sep 20, 2005
    timgr

    timgr Jeepin' Nerd 2020 Sponsor 2019 Sponsor

    Medford Mass USA
    Joined:
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    No problem - glad to help. That's why we're here.

    From the picture it looks like a thermo-electric choke. You can see an open, threaded port next to where the choke wire comes off. This port has a slight vacuum and pulls heated air from a stove on the manifold, which (with the electric signal) contributes to heating the bimetal spring which opens the choke. I believe that's the same choke design that Jeep used.

    If the thermoelectric choke is too much trouble, you can get a kit at the parts store to convert to a manual choke. Be sure to plug the hot air port if you switch to a manual choke.

    There's a '72 manual online here: www.c104.net - it's a very slow link, but will download if you are patient.

    <edit> oh, and yes, it'll work. I'd use an insulator in place of the spacer that came with it though.
     
  14. Sep 20, 2005
    JeepDriver

    JeepDriver Member

    Concord, NC
    Joined:
    Sep 12, 2005
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    Cool. I'll see if I can snag that one on ebay and if I have to I'll convert to manual choke.

    Thanks Again Tim.
     

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