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Thread: AMC 304 Engine Diagram?

  1. #1
    Join Date
    Sep 2006
    Location
    Oregon
    Posts
    65

    Default AMC 304 Engine Diagram?

    I am putting the front components (power steering pump, alternator, pulleys, belts, etc.) back onto my rebuilt AMC 304 for my 79 CJ5. I have been searching the web for a detailed diagram of where brackets, spacers, nuts, bolts, and washers go, but haven't found anything aside from some VERY basic diagrams of how the belts go through the pulleys. I have tried to use photos of AMC 304s but none of them show the area that I need help with (below the power steering pump, behind the fan). I also have 3 different shop manuals and none of them show these little details. I just want to make sure I put every bolt and bracket back in the right place. Looking back, I'm kicking myself for not taking detailed photos of all the brackets and spacers on the front of the engine before I disassembled. Anyone know of a good detailed diagram of the front of the engine? Thanks very much.
    1979 Jeep CJ-5
    304 V8/3-speed T-150
    Cumberland Green Metallic

  2. #2
    Join Date
    Aug 2003
    Location
    Medford Mass USA
    Posts
    14,527

    Default Re: AMC 304 Engine Diagram?

    There may be an exploded drawing in the Jeep parts manual from that era. If someone has it and can post it for you ... otherwise you can buy repops of the parts manual.

    My '75 may be the same - tell me specifically what you are looking for, and I can post a pic or two.
    Tim Reese
    '75 CJ-6, Copper Polly 304/T15
    '77 J10 type 45 (131" WB) 258/T15/3.54
    '82 J20 type 27 360/T18/NP208/3.73 7600 GVWR
    '95 VW Golf Sport 2D 2L

  3. #3
    Join Date
    Sep 2006
    Location
    Oregon
    Posts
    65

    Default Re: AMC 304 Engine Diagram?

    Thank you. Specifically, I am looking for a detailed exploded view of the alternator mounting assembly. We have the power steering pump and mounting assembly figured out, the harmonic balancer, main pulley, timing cover/water pump and pulley, and the fan figured out, but the alternator, a few mounting brackets, and about 4 different spacers and various bolts/nuts are lying there looking me. We could probably guess our way through it, but it would sure save us time and headaches if we could study a detailed diagram. Thanks again.
    1979 Jeep CJ-5
    304 V8/3-speed T-150
    Cumberland Green Metallic

  4. #4
    Join Date
    Sep 2006
    Location
    Oregon
    Posts
    65

    Default Re: AMC 304 Engine Diagram?

    Here is a picture of what I have left to go on the front of the engine. The alternator, 3 or 4 brackets, and 6 spacers. They may not all go together, but I think most of these parts are related. Also, the other picture is of an unidentified part. What is it and where does it go? To me, it looks exactly like the barrel shroud on the end of a 1911 .45 auto! Any help would be great. Thanks.
    Last edited by mgtmel; 06-13-2008 at 12:49 PM.
    1979 Jeep CJ-5
    304 V8/3-speed T-150
    Cumberland Green Metallic

  5. #5
    Join Date
    Aug 2003
    Location
    Medford Mass USA
    Posts
    14,527

    Default Re: AMC 304 Engine Diagram?

    Mmm. My '75 will be different since it has a Motorola alternator, not Delco like yours. I'll take a look at it when I get home and see if it's similar.
    Tim Reese
    '75 CJ-6, Copper Polly 304/T15
    '77 J10 type 45 (131" WB) 258/T15/3.54
    '82 J20 type 27 360/T18/NP208/3.73 7600 GVWR
    '95 VW Golf Sport 2D 2L

  6. #6
    Join Date
    Mar 2007
    Location
    Milford NJ 08848
    Posts
    987

    Default Re: AMC 304 Engine Diagram?

    My cj has a swapped in Delco 3 wire alternator. I could get some pics, but it wouldnt be for a few days since its at my parents house. let me know if you're interested.
    72-ish CJ-5[/B]-304 V8, D20 tera low'd 3.15:1, Powertrax'd d44 rear, Lockrite'd Disk D30 front, 33x13.50x15 Swamper, MC2100, cherry bomb's, full cage, sunken 8274.
    The most incomprehensible thing about the universe is that it is comprehensible. -Albert Einstein

  7. #7
    Join Date
    Jul 2003
    Posts
    6,475

    Default Re: AMC 304 Engine Diagram?

    top pic is V8 less air conditioning
    bottom pic V8 with air conditioning

  8. #8
    Join Date
    Jul 2006
    Location
    Northern CA
    Posts
    156

    Default Re: AMC 304 Engine Diagram?

    I had the same problem when reinstalling my 304 this summer. I won't the jeep back for another week or two, but if you need help after that, PM me and I will take some pictures and send them to you. Meanwhile, you could try looking at a 1980 era Jeep Wagoneer with a 360 and get some ideas or search the web for on board air and there's pictures of how to mount your air
    compressor upright. hope this helps. Sorry I couldn't get you pictures right away but the jeep is being worked on 6 hours away. Doc
    " The dignity of man is not shattered in a single blow, but slowly softened and bent and eventually neutered. Men are seldom forced to act, but are constantly restrained from acting. Such power does not destroy outright, but it dampens, weakens and ultimately suffocates until the entire population is reduced to nothing better than a flock of timid uninspired animals of which the government is the shepherd. " Tocqueville.

  9. #9
    Join Date
    Sep 2006
    Location
    Oregon
    Posts
    65

    Default Re: AMC 304 Engine Diagram?

    Thanks very much, everyone. This is such a great forum. Anytime I need advice or information, everybody is happy to chip-in. I just wish I could provide more help for others, but my mechanical knowledge and experience is coming along slowly. Thank you "jpflat2a" for posting those diagrams. That is exactly what I needed. I'll be sure to post pics in the "builds" forum when this rebuild wraps up in a few weeks. Thanks again!
    1979 Jeep CJ-5
    304 V8/3-speed T-150
    Cumberland Green Metallic

  10. #10
    Join Date
    Oct 2005
    Location
    lancaster pa
    Posts
    30

    Default Re: AMC 304 Engine Diagram?






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