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Thread: '90 MM 2.4L FI Build

  1. #76

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    Quote Originally Posted by crvtec90 View Post
    490 sounds high for a rebuilt head but if youre cam and journals have scoring then its gonna get worse before it gets better. Does the rebuilt head come complete with valves and cam? Alabama cylinder head sells a non jet valve casting that's supposed to be decent but I think it comes as a bare head.
    Yep.........complete.......just have to use my pulley.

  2. #77

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    Well I guess that sounds more reasonable since its complete with valves/cams/ lifters etc. I think the bare heads are 250-300.

    U might think about tearing into the engine to check all the bearings before you install a new head. If the main/rod/balance shaft bearings are bad they could put pieces of metal into the oil and then travel up to the head.

  3. #78

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    Man......I sure have been procrastinating on this thing......yeah, I'm thinking the same, as far as the bearings and such.

    I'm thinking I may need a new crank, cause it appears the keyway hole has been wallowed some.

    And b4 tear down, when running, I noticed the fan belt wobbling.

    Problem......where to get another crank?

    Anyone.......anyone....???????

  4. #79

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    Oh well, here it is July 4th weekend and not a darn thing done on this thing.

    How can I check the rods and crank to see if it needs to be torn apart?

    The cylinder bores look good, can see crosshatch marks.

    Engine spins freely enough.....seems.

  5. #80

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    Here it is a week b4 Thanksgiving, my goal is to have this thing fired this coming weekend.

    Got a few things left:

    Radiator install

    Air cleaner assembly installed.

    Spark plugs, wires, distributor cap, rotor.

    Fluids.....oil, antifreeze

    Charge battery, and may need to replace.
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  6. #81

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    Well did need to replace the battery.

    After couple hundred bux, it has fired up. After 3 or 4 years up on those ramps.

    Runs just ok. Have oil coming out of the valve cover, just above no. 2 plug.

    Guess either the cover or head has a dip in the surface. Need to get that fixed.

    It over heats very quickly. Has new thermostat, but must not be opening. I'll go get another one and see what happens.

  7. #82

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    Cleans up real good after sitting on ramps for 3 or 4 years.

    Got some room in the garage.

    My wife is estatic..................
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  8. #83

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    P1050002.jpgP1050001.jpgWell, got this wired in.....fits real nicely............

    And the two together.....

  9. #84

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    Quote Originally Posted by mitchi View Post
    Well did need to replace the battery.

    It over heats very quickly. Has new thermostat, but must not be opening. I'll go get another one and see what happens.
    Great job, mitchi! This might be of some help for your overheating:

    http://www.mightyram50.net/vbulletin...ll=1#post26975

    "your thermostat orientation is correct with the bleed valve at the top, the sensor in the housing will not obstruct it from opening all the way."
    The greatest gift you have to give to the world is that of your own self~transformation.

  10. #85

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    Yea, it was installed correctly.

    It's working good now.....thanks for the info royster.

  11. #86

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    I installed a 7 bolt head on my 6 bolt engine...........no issues cept, I think I may had damaged some of the valve seals.

    I tried to push them down by hand, but ended up using a deep socket to tap them down.

    Smokes some still, only had it idling, haven't yet taken it for an extended test drive.

  12. #87

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    Good to hear, Mitchi.

    My experience with the valve seals is thay actually take a few miles to really seat, so give 'em some time and see what happens. After abou 5 cold starts, you should see results.
    The greatest gift you have to give to the world is that of your own self~transformation.

  13. #88



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    I hope you purchased good brand seals. You know how those Chinese parts can be. Those should be packed full with pre-run grease before installing. If not mistaken, there should be some springs on them to keep them seated.

  14. #89

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    Quote Originally Posted by mitchi View Post
    .
    Just an FYI, but the chrome grill and front corner light surrounds are from a '93 or later truck. Those parts should be black like the rear corner light surrounds are.
    I don't know if the previous owner just wanted to add some bling or if those parts needed to be replaced for some reason? The front bumper is correct, but it looks really nice, they usually have some bumps and dents, so it might also be a replacement?

    ed; its is a really nice truck!
    I knew daredevils and I ain't got nothin' against them, ........it's just they're all dead.

  15. #90

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    i had the same thing happen. bought a set of cheap ones. go with a set of fel-pro ones. they will slide down pretty easily and push down by hand. no more burnt oil.

  16. #91

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    Ok..............................finally got some new tires on it.

    Took it for it's maiden voyage yesterday, smoked the whole neighborhood as I left it.

    After about 3 or 4 miles, it stopped smoking. Runs really good after sitting on those ramps for so long, and having the same gas in it.

    Stopped and filled it with clean gas, probably will take a little time to get that cleared out.

    It's automatic so the trans needs some TLC now. Won't go into over drive.

    Drove it to work today, drove fine 'cept got a little hesitation, which I'm thinking the trans.

    Still doesn't feel like it has the power it should, takes off just so-so. Nothing spectacular.

    But runs and drives.

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