JDM engines....

Discussion in 'General Motoring' started by RayGun, Feb 3, 2006.

  1. RayGun

    RayGun Guest

    Hi..
    Just replaced my sons 91 civic si with a JDM from Toronto.
    Same everything with a couple of exceptions...notably the
    exhaust manifold is a dual port (at the collector end).
    I know the CRX and Si/ DX motors all about the same, But I wasn't
    aware of the dual manifold. My daughters CRX had a single exit.
    Anyone know if that is common here in North America, or maybe just
    a Pacific rim item. Would make for a niffty exhaust system if useable.
    Will put it up for sale, as I had to use the original manifold from the
    dead engine.
    Thanx for any info
    Ray
     
    RayGun, Feb 3, 2006
    #1
  2. RayGun

    jim beam Guest

    yes, i believe that manifold's specific to the foreign markets. shame,
    i'd like to have one!

    and it sounds like you may have a good motor there! how does it drive?
     
    jim beam, Feb 4, 2006
    #2
  3. RayGun

    dold Guest

    I had heard that JDM motors were generally junk. Because the original
    owner knows that the engine is going to be replaced at low mileage, there
    is no care or caution exhibited in its operation.

    Dunno... Can't be worse that a pick-and-pull motor, I would guess.
     
    dold, Feb 4, 2006
    #3
  4. RayGun

    RayGun Guest

    Well never having heard of 'JDM' until I started the quest for an
    engine, some items have come to light. My neighbor who assisted with
    his truck to get the engine home, and works nearby the place, was told
    by one of his fellow workers, that (no proof here,,, but) because of
    restrictive emission standards, these motors get pulled around the 50k
    to 65k kilometres, and replaced.!!! Mind boggling from north american
    standards. Not just try to improve emmisions, but yank the engine, and
    replace....!! Soooooo, believing that,,,and if true, that is still a
    pretty fresh engine to start with.
    Well the swap went exceedingly well (got a gash in my forehead from the
    exhaust pipe...but had to spill blood anyway to appease the luck gods)
    Minor differences, lacking a couple of north american emission things,
    and all writing lables and decals totally unreadable...
    (Wish I could have used the manifold..it really looks cool, if a
    manifold can look cool)
    The entire engine is amazingly clean, unlike a crudded up one over here
    with 300k on it. Plugs were hardly worn, so we kept them, the only
    fowled item were the injectors, which were in worse carboned up state
    than the ones in the old engine. We swapped them out.
    Replaced the crank / tranny oil seal just because it was easy.
    It took a little to start the bugger, but once running, and put the
    timing light on it (had to use our old distributor) it was like the
    proverbial sewing machine...only a lot better than we just had.
    Junior has taken it to work and back, about 600 k, and he is tickled
    pink that he isn't throwing in a litre of oil daily now. Mileage of
    course is better than the old engine, and so far it hasn't skipped a beat.
    I believe that there is a little starving of fuel in the higher rpms, as
    he reports a little lag in power above the 4000 mark, but we are sure
    that a new gas filter, distributor cap and rotor, (original has over
    300k on it), and a better touch with the timing light should bring
    things into place.
    If we lucked out and got the pick of the litter, I couldn't be happier.
    $400,00 cdn, nice warm garage, couple of days longer than anticipated,
    Wished I had known about this two years ago when I got the thing rebuilt.

    ps...if you want, I'd be happy to send photos of the manifold...I hope
    that someone would want it, don't want to chuck it out...
    Cheers
    Ray
     
    RayGun, Feb 5, 2006
    #4
  5. RayGun

    jim beam Guest

    i've heard that. also, japan is a small densely populated island with
    excellent public transportation, so a lot of cars don't get driven much
    before they get junked. and they have tax laws that make it prohibitive
    keeping older cars on the road.
    good move.
    yup, should do. don't forget leads too. also, consider having the
    "new" injectors cleaned. because of their low mileage, they may
    ultimately prove to be a better choice.
    i'm interested. send a pic via tegger [don't care to get my personal
    email spammed].
    glad you're happy ray. i'd run injector cleaner through it for the
    first few tanks to help clean some excess carbon from the valves and
    combustion chamber. engines that don't get "hot" tend to build up quite
    a lot of it.

    and keep that thing in good shape by using a quality motor oil!!!
    tegger's got some pics on his site of various results...
     
    jim beam, Feb 5, 2006
    #5
  6. RayGun

    TeGGeR® Guest



    Send 'er to me. I'll post it in the Misc directory.

    Might also be a good idea to include a pic of the original manifold as
    well, for comparison purposes.
     
    TeGGeR®, Feb 5, 2006
    #6
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