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Help, is this not an Odd-fire???

Discussion in 'Early CJ5 and CJ6 Tech' started by vanfleetlh, Feb 19, 2016.

  1. Feb 19, 2016
    vanfleetlh

    vanfleetlh 66 CJ5 Utah

    Payson Utah
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    My CJ5 Jeep project is almost done, I was setting the timing on the V6 225 engine and after all the reading I've doing about odd-fire vs evan-fire I decided to take a look at the distributer cap lobes and verify the configuration. My study tells me there should be 3 flat's and 3 bumps on the distributor cam. Wow was I suppressed, WHAT IN THE HECK DO I HAVE HERE????? Sorry the pictures are bad because it's hard to get into that space.

    [​IMG]

    [​IMG]

    These next pictures are of the casting numbers I verified the 1378704 is the intake casing for a 2 Barrel, what is the other number and how can I verify what this engine really is. I can't find that number in any of the docs. is there anther number someplace?

    [​IMG]

    [​IMG]
     
  2. Feb 20, 2016
    vanfleetlh

    vanfleetlh 66 CJ5 Utah

    Payson Utah
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    OK, I'm feeling dumb, "I tried to think and nothing happened". I went back and reread the "Understanding the Odd-fire V6" and I was wrong in thinking the distributor rotates twice per cycle. The engine rotates twice per cycle and the distributor rotates only once. But looking at the lobes on the distributor cam it looks like they are evenly spaced, maybe my 57 year eyes just can't see the difference between 45 and 75 deg.
     
  3. Feb 20, 2016
    sterlclan

    sterlclan Member 2024 Sponsor 2022 Sponsor

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    they look even to me too .
     
  4. Feb 20, 2016
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
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  5. Feb 20, 2016
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Looks like an even fire distributor shaft, but that's an odd-fire ignition rotor.
    I realize that part are easily swapped; just an observation.
     
    olbettles1234 likes this.
  6. Feb 20, 2016
    vanfleetlh

    vanfleetlh 66 CJ5 Utah

    Payson Utah
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    My engine runs really well, I don't notice the odd-fire lope. I did look at that doc and I didn't see my numbers on it.
     
  7. Feb 20, 2016
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

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    So you are looking for the 1386236 as the block casting number? A Google search comes up with nothing. Are you sure that's the right place to look for the block number? The way it's presented seems pretty tenuous for a 7-digit GM PN.

    The odd-fire sound has been described as potato-potato-potato-potato-potato... Have you had the pan off? IIRC the odd fire crank has 3 journals, with two rods on each journal. The even-fire crank has a separate journal for each rod.
     
  8. Feb 20, 2016
    Willys43

    Willys43 Member

    Kansa City
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    In '66 kaiser put the 225 Dauntless in jeeps and the block numbers are extremely close to what yours is. The odd fire engines were in production until '77 . HEI came about in '75 and it is odd fire. Where would an even fire points distributor come from? I didn't think there was an even fire points distributor. It does look evenly spaced. maybe if you took the rotor off and cranked the engine. And looked again it might look different.
     
  9. Feb 20, 2016
    W2SNO

    W2SNO Member

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    My bet is that is is a 1381623 OddFire
     
  10. Feb 20, 2016
    Keys5a

    Keys5a Sponsor

    Florida Keys
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    This.
    Though uncommon, sometimes the casting numbers are missing digits. In the photo from the first post, you can see a gap between 138_623. There should be a 1 in that gap. My cylinder head and block casting number book lists this as '64 to '67 GM/Buick 225. Incidentally, this same casting number is also for a '74 Chrysler 3.2/196 L6.
    -Donny
     
  11. Feb 20, 2016
    Willys43

    Willys43 Member

    Kansa City
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    I have a 61-63 198 Fireball the casting number begins with the letter B and there is no space in the middle where it looks like the 1 is missing.
     
  12. Feb 20, 2016
    Keys5a

    Keys5a Sponsor

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    Willys43,
    Your casting number of your 198 block should be 1349430.
    Your heads should be 1354391 or 1364391.
    My book shows the Buick 198 from '62 to '65. I've never seen one newer than '63.
    -Donny
     
  13. Feb 20, 2016
    Willys43

    Willys43 Member

    Kansa City
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    That's the number only it starts with a B1349430. The info I found was online said it to be 61 to 63. Rock Auto lists parts for the 198 beginning in 62 and 63, then changes to the 225 in 64
    Craig
     
  14. Feb 20, 2016
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    A 198 is easy to tell from a 225 by the bell housing. The 198 has essentially a "round" bell housing like a 215 V-8 and 225 has two narrow bolt holes on top that protrude upward (as do the 231/252, 340,350etc.)

    The picture shown above indicates a 225,231, etc.
     
  15. Feb 21, 2016
    Keys5a

    Keys5a Sponsor

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    The Buick 198 and 215 have the "mickey mouse ears" bellhousing pattern. This feature was carried over by Rover when they bought the rights in the mid'60s
    -Donny
     
  16. Feb 21, 2016
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    1964 and older 215 and 198 used the round pattern bell housing. I've owned bell housings that came from both and I owned a 198 engine with the round pattern.
     
  17. Apr 19, 2016
    Jonbbrew

    Jonbbrew Member

    Paso Robles, CA
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    I have a 198 as well. Would you mind sending me some pics of your motor as I am still trying to get PS set up as well as a better alt mount?

    Thanks!
     
  18. Apr 19, 2016
    Willys43

    Willys43 Member

    Kansa City
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    http://i1172.photobucket.com/albums/r573/kc0sdz/IMGP2108_zpsgr9vuoci.jpg
    PO was quite creative! Alternator rubs head, pulleys out of alignment, Heater hose and upper radiator hose have to be moved in order to relocate alternator to passenger side, no power steering, hurst shifter under drivers leg, cant even see it when I'm sitting in it. Air filter was a sock wrapped around the air cleaner, twin under seat fuel tanks. First project is HEI and EFI
     
    Last edited: Apr 19, 2016
  19. Apr 19, 2016
    Daryl

    Daryl Sponsor

    Bonney Lake, WA
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    Easiest way to tell a 198 if you can't see the bellhousing is to look at the starter. The starter solenoid is facing down on a 198.
     
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