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Thread: New Coupe

  1. 11-10-2004, 01:28 PM #51
    SteveDX89
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    Quote Originally Posted by A20A3
    I just finished my compression test.

    Very surprising results.

    CYLINDER 1 = 100-125 PSI
    CYLINDER 2 = 50 PSI
    CYLINDER 3 = 25-35 PSI
    CYLINDER 4 = 30 PSI

    HOWEVER - I have not tried adding a small amount of oil to each cylinder to see if my rings were bad. ALSO - All 4 of my spark plugs showed NO sign of oil in the cylinder; they were all carbon fouled, which is very understandable considering my car runs extremely rich.

    Discuss please.
    Rings, valve seals are insanely FUBAR, or head gasket. That mofo must have no power to it at all.
    No projects. Life consumes my time and money.
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  2. 11-10-2004, 01:48 PM #52
    'A20A3'
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    It does have next to no power, idles like shit half the time, and doesn't like to start when it's cold. I don't think it's the rings, no oil on the spark plugs, and it doesn't burn any. The head gasket is on it's way out I know that for sure. It also has excessive blowby. When I replace the head gasket I will be swapping the head from my other A20A3 onto this one to see if it cures the blowby problem.
    -Harvey
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  3. 11-10-2004, 04:47 PM #53
    'A20A3'
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    Any other opinions or ideas?
    -Harvey
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  4. 11-10-2004, 05:57 PM #54
    accordlxi2.0
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    oh man....
    those are some bad results, when you said surprising i was thinking 180 or 200 psi or something.
    ummm, you best bet is to take care of the easiest job, but in your case it seems no of em are......
    but i say take care of the h/g, first...
    just for the hell of it do what you said...
    swap the head from your other a20a3 that will more than likely take care of the problem.
    i mean the whole thing, from the t/b valve cover and so on.
    i doubt your rings are gone.
    i mean the previous owner (a counsoler) i'm sure he does'nt drive like i do.....
    ****** 1994 nissan maxima SE ******
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  5. 11-11-2004, 09:52 AM #55
    'A20A3'
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    I talked to my mechanic and my auto tech teacher and they both said I must have done something wrong because with that kind of compression the engine wouldn't/shouldn't even run...

    The previous owner was a woman...however her son(who was around my age:17)drove the car for a few months, which is probably why it's so clean...and so FUCKED.
    -Harvey
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  6. 11-11-2004, 11:18 AM #56
    accordlxi2.0
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    well thats good!
    i mean what your tech and mechanic said, something was probably wrong with the fitting, or something.
    so are you gonna replace the head???
    ****** 1994 nissan maxima SE ******
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  7. 11-11-2004, 11:34 AM #57
    'A20A3'
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    Yeah definitely. I got the exhaust manifold and EGR off the sedan engine today, and next week I'll have the head pulled and all cleaned up and ready to go on the coupe.
    -Harvey
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  8. 11-11-2004, 11:41 AM #58
    accordlxi2.0
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    and trust me it'll be better , plus you get credits for working on the car at the tech school right??
    ****** 1994 nissan maxima SE ******
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  9. 11-11-2004, 02:43 PM #59
    'A20A3'
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    Word.
    -Harvey
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  10. 11-12-2004, 02:59 PM #60
    'A20A3'
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    I'm really surprised I haven't gotten more replies to this dilemma...
    -Harvey
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  11. 11-12-2004, 03:24 PM #61
    accordlxi2.0
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    well, i'm trying my best to help you.....
    be sure to keep this updated.....
    ****** 1994 nissan maxima SE ******
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  12. 11-15-2004, 08:16 PM #62
    'A20A3'
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    Exclamation Update

    Well to hell with trying to figure the whole thing out. By the end of this week, I'll have the intake manifold with all the sensors and whatnot, pulled off my sedan engine, along with the head, and I'll be clean both up real nice and put them onto my coupe engine within the next two weeks, along with all new hoses, head gasket, distributor O-ring, cam seal, valve cover gasket, and fuel filters. Then all that's left is my Centerforce II clutch and I'm in business. If that doesn't fix my problems, I have no clue what the hell will.
    Last edited by 'A20A3'; 11-15-2004 at 08:18 PM.
    -Harvey
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  13. 11-15-2004, 08:18 PM #63
    'A20A3'
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    Question:

    When the cam gear's "UP" lettering is pointing directly up, is the engine at TDC??

    Thanks in advance.
    -Harvey
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  14. 11-16-2004, 07:24 AM #64
    accordlxi2.0
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    actully it means that cyl. 1 is at tdc... but make sure its positioned with that dot or line on the valve cover....
    good luck and i'm sure this'll take care of your problem...
    ****** 1994 nissan maxima SE ******
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  15. 11-16-2004, 07:39 AM #65
    'A20A3'
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    Quote Originally Posted by accordlxi2.0
    actully it means that cyl. 1 is at tdc... but make sure its positioned with that dot or line on the valve cover....
    good luck and i'm sure this'll take care of your problem...
    That's what I meant. I just really don't want to have to deal with timing issues. I believe that all this blowby I have is from sticking valves, so I'm considering just adding an engine flush and then changing my oil to see if that solves the problem, then I won't have to swap heads when I do the head gasket.
    -Harvey
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  16. 11-16-2004, 11:49 AM #66
    accordlxi2.0
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    hey that'll help too.
    this guy had a lumina that ranned a bit rough, due to him driving around ALOT.
    so we used this oil flush stuff, ran it for five-ten minutes it seemed to run alot smoother during the process, we drained the oil, add the new oil and filter, it ranned pretty smooth....
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  17. 11-19-2004, 08:28 PM #67
    'A20A3'
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    Hmmmmm

    Well I brought home the intake manifold off of the sedan engine and I have it completely dismantled and I'm going to clean it up, and bore out the throttle body and the manifold. Also, I'm taking the sedan cylinder head to a machine shop and having them port and polish the head as far as possible. I just ran the coupe with the A/C on to help preserve the precious Nippondenso compressor. Everything is going good right now and I'll keep you guys posted on the coupe as things progress.

    I'm niced up right now. :alc:
    -Harvey
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  18. 11-26-2004, 06:49 AM #68
    accordlxi2.0
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    hey whats up with the coupe....
    ****** 1994 nissan maxima SE ******
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