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Toyota Trucks: 1990 4-Runner 3VZ-4 Rebuild

  1. #1
    glacb
    Guest

    1990 4-Runner 3VZ-4 Rebuild

    Hello, i'm trying to decide about rebuilding my 4-Runner engine (190,000
    miles) or buying a rebuilt engine from a dealer, any suggestions? It lost
    compression and won't start and i've already pulled it from the truck. If
    anyone has experience with purchasing a rebuild where did you get it and if
    anyone completed a rebuild where did you get the rebuild kit (OEM or
    aftermarket)? Thanks



  2. #2
    MDT
    Guest

    Re: 1990 4-Runner 3VZ-4 Rebuild

    glacb wrote:
     
    Well, its a burnt valve. Do a valve grind. I bet the rest is fine.
    USually a result of not checking valve clearance.

    --





    Inasmuch as the Democrats are complaining on how long the war is taking,
    consider this:

    It took less time to take Iraq than it took Janet Reno to take the
    Branch Davidian compound. That was a 51-day operation.

    It took less time to find Saddam's sons in Iraq than it took Hillary
    Clinton to find the Rose Law Firm billing records.

    It took less time for the 3rd Infantry Division and the Marines to
    destroy the Medina Republican Guard than it took Teddy Kennedy to call
    the police after his Oldsmobile sunk at Chappaquiddick.

    It took less time to take Iraq than it took to count the votes in
    Florida! TWICE!!!!!

    Damn our military is GREAT!!


  3. #3
    JoAnne
    Guest

    Re: 1990 4-Runner 3VZ-4 Rebuild


    "MDT Tech®" <com> wrote in message
    news:2GEIb.14177$news.pas.earthlink.net... 
    lost 
    If 
    if 
    Hi.
    I have a 89 4x4 sr5 pickup, 6 cyl, and 235k miles.
    Should I be checking the valve clearances?
    She runs great with no oil loss.
    Thanks and happy new year


     



  4. #4
    MDT
    Guest

    Re: 1990 4-Runner 3VZ-4 Rebuild

    JoAnne wrote:
     


    Yes, measure them cold. You will need shims to set the clearance. It
    will run fine till it quits! ;-D Tigh valves is what burns them. And if
    you have normal wear, teh valves will usually becoem tigher with time.
    We get probably about 10 of these a year, burnt valves from too little
    clearance.


    --





    Inasmuch as the Democrats are complaining on how long the war is taking,
    consider this:

    It took less time to take Iraq than it took Janet Reno to take the
    Branch Davidian compound. That was a 51-day operation.

    It took less time to find Saddam's sons in Iraq than it took Hillary
    Clinton to find the Rose Law Firm billing records.

    It took less time for the 3rd Infantry Division and the Marines to
    destroy the Medina Republican Guard than it took Teddy Kennedy to call
    the police after his Oldsmobile sunk at Chappaquiddick.

    It took less time to take Iraq than it took to count the votes in
    Florida! TWICE!!!!!

    Damn our military is GREAT!!


  5. #5
    JoAnne
    Guest

    Re: 1990 4-Runner 3VZ-4 Rebuild


    "MDT Tech®" <com> wrote in message
    news:VYGIb.14372$news.pas.earthlink.net... 
    (190,000 
    and 

    Great another New Years resolution to the list!


     



  6. #6
    1992
    Guest

    Re: 1990 4-Runner 3VZ-4 Rebuild

    To actually answer your question, you can find a rebuild kit on E-Bay for
    around $375.00.. I am an aircraft mechanic and unlike the other suggestions
    if you have the time I would take the engine down as far as you are
    comfortable with and take the block to a shop to be checked for cracks and
    cleaned. If you are going to spend the time to do the job, might as well do
    it right.. You can pick up the Engine book for your truck at your Toyota
    dealer, VOL. 1 for around $55.00..

    Good Luck

    Tony

    "glacb" <com> wrote in message
    news:qdDIb.2515$.. 
    if 



  7. #7
    Gjlwilliams
    Guest

    Re: 1990 4-Runner 3VZ-4 Rebuild

    Does anybody really bring their vehicle in for just a valve clearance check?
    The last (and only) time I had my valve covers off at around 125k to replace
    leaking gaskets it was a major job, at least for me (V6). Last time I checked a
    longblock cost more than the truck was worth so it might not be a bad idea to
    check the valves if your going in there for something else.

    Gary W.

  8. #8
    glacb
    Guest

    Re: 1990 4-Runner 3VZ-4 Rebuild

    Thanks.

    Would you use OEM replacement parts if it requires pistons and rings? What
    all would you replace - water pump, timing belt, fuel injectors, hoses,
    etc.?

    Gregg

    "1992 Toyota Xcab" <!com> wrote in message
    news:supernews.com... 
    suggestions 
    do 
    lost 
    If 



  9. #9
    1992
    Guest

    Re: 1990 4-Runner 3VZ-4 Rebuild

    Contrary to what some other people on this site may think, I have notice
    that OEM parts and aftermarket parts are about the same. Sine you have an
    old vehicle it really does not matter for warranty. I would use whatever
    you feel comfortable with or what your pocket book can afford.

    Tony



    "glacb" <com> wrote in message
    news:vYXIb.2567$.. 
    for 
    and 
    well 
    (190,000 
    and 



  10. #10
    Luther
    Guest

    Re: 1990 4-Runner 3VZ-4 Rebuild

    "1992 Toyota Xcab" <!com> wrote in message
    news:supernews.com... 

    That has not been my experience with Toyota parts. Case in point is the
    ignition wires. Genuine Toyota wires are cut to length, numbered, have heat
    protective wrapping in the correct places, and include the plastic spacers
    (already attached) as well as the connectors to secure the 1-3-5 wires to
    the timing cover. Installing them is just a matter of dropping them onto
    the engine and plugging everything up. Aftermarket, on the other hand, is
    probably just going to be a box of wires that may or may not be the correct
    lengths.

    So, in this case (and others), there is a significant difference between
    genuine Toyota and aftermarket parts.

    I have bought a lot of Toyota parts over the years and my experience has
    been that the genuine Toyota stuff is, on the average, going to be
    consistently of a higher quality than other suppliers and may at times
    include extra goodies as was the case with the ignition wires. Of course,
    these parts are also going to cost twice as much. Is it worth the extra
    expense? Sometimes . . . but usually not. FWIW If money is no object,
    always go with genuine Toyota. Otherwise, shop around where possible.

    Luther




 

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