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  1. #11
    Join Date
    Jun 2008
    Location
    De Pere WI
    Posts
    4,103

    Default

    so what'cha doing september 10th? I gotta pull the engine out of my 98 ford ranger and replace. blown head gasket and rumored a popped piston. cheaper to just buy a donor motor and swap. 4cyl and easy as pie, just kind of lazy right now...
    '06 Supra Launch 20SSV-gone but never forgotten

  2. #12
    Join Date
    May 2007
    Location
    Richmond, VA
    Posts
    1,780

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    Doc - I admire the can-do attitude. Post a pic of the whole sled with the rebuilt engine installed. - Deerfield
    2007 Outback
    2012 RAM Crew Cab
    Stuart

  3. #13
    Join Date
    Feb 2010
    Location
    Hartwell Ga./Lilburn Ga.
    Posts
    100

    Default

    More than likely the rave valve is worn and traveling too far,thats what grabed the rings and caused the piston failure.
    04 LSV

  4. #14
    Join Date
    Jul 2002
    Location
    London Ontario Canada
    Posts
    1,839

    Default

    Quote Originally Posted by Mikes View Post
    More than likely the rave valve is worn and traveling too far,thats what grabed the rings and caused the piston failure.
    That makes some sense as the middle of the valve is chipped. I didn't think the rave valves could travel too far, I will have take a close look at that one
    09 21v LAUNCH

    run your engine after you change your oil
    68 th Member. WS420,HSE Revolution, OJ 466, Acme1157,1100 sacs,Kicker HLCD's n IX500.4, Supra Coolies
    Doug

  5. #15
    Join Date
    Mar 2008
    Location
    Vancouver WA
    Posts
    2,608

    Default

    Wow Doc, nice work. can you do rebuild pics too? Love to see how-to's like like this.


    PWI as usual...

  6. #16
    Join Date
    Sep 2009
    Location
    Grayson, Georgia
    Posts
    1,064

    Default

    Quote Originally Posted by Mikes View Post
    More than likely the rave valve is worn and traveling too far,thats what grabed the rings and caused the piston failure.
    HA! I was waiting on you to chime in.

    Folks, listen to Mike. He knows his stuff. TRUST ME.



    Man, I love this post DOC. I wish I understood more, but I can't help loving learning.
    -Mark
    2005 LSV
    Tow w/:
    Volkswagen Touareg V8
    Mods: Stereo, Stainless Cup Holders and Thru Hulls, Chrome Steering Wheel, EZ Nets, Moomba Etched Cleats

    "Be more concerned with your character than your reputation, bc your character is what you really are, while your reputation is merely what others think you are."

    -John Wooden

  7. #17
    Join Date
    Sep 2009
    Location
    Grayson, Georgia
    Posts
    1,064

    Default

    bump for DOC
    -Mark
    2005 LSV
    Tow w/:
    Volkswagen Touareg V8
    Mods: Stereo, Stainless Cup Holders and Thru Hulls, Chrome Steering Wheel, EZ Nets, Moomba Etched Cleats

    "Be more concerned with your character than your reputation, bc your character is what you really are, while your reputation is merely what others think you are."

    -John Wooden

  8. #18
    Join Date
    Jul 2002
    Location
    London Ontario Canada
    Posts
    1,839

    Default

    Last night I went in to the shop manual then poked around the engine and found that the TB throttle body to intake manifold rubber boot clamp was not even secured. I could rotate it around the port on the PTO (power take off) cylinder ( the one fried) . On the MAG cylinder (closest to the magneto) the clamp was not tight as well. I bought the doo 3 years ago so I have to think it was like this all the time and I was lucky to have it last this long. So I think with the air leaking in thru this could definitely caused a lean condition and destruction of this cylinder. Contrary to mike above the rave valve cant travel further into the cylinder as it wears imo as there is a definte stop.

    The Doo
    DSC04966 by docdrs, on Flickr

    loose clamp between TB and Intake manifold

    DSC04974 by docdrs, on Flickr

    Jugs back from resizing .020 over


    DSC04967 by docdrs, on Flickr
    Last edited by DOCDRS; 09-02-2011 at 10:08 AM.
    09 21v LAUNCH

    run your engine after you change your oil
    68 th Member. WS420,HSE Revolution, OJ 466, Acme1157,1100 sacs,Kicker HLCD's n IX500.4, Supra Coolies
    Doug

  9. #19
    Join Date
    Jul 2002
    Location
    London Ontario Canada
    Posts
    1,839

    Default

    Rave valves were ground back at shop for oversizing of cylinders. I think I'm going to take a little more off the middle of the pto cylinder rave as the clearance does not look as much as the rest of the valve.


    DSC04970 by docdrs, on Flickr


    DSC04973 by docdrs, on Flickr

    pick of inside of doo


    DSC04976 by docdrs, on Flickr
    09 21v LAUNCH

    run your engine after you change your oil
    68 th Member. WS420,HSE Revolution, OJ 466, Acme1157,1100 sacs,Kicker HLCD's n IX500.4, Supra Coolies
    Doug

  10. #20
    Join Date
    Jul 2002
    Location
    London Ontario Canada
    Posts
    1,839

    Default

    new rebuild kit


    DSC04977 by docdrs, on Flickr
    trial fit of piston, rings wrist pin and bearings

    DSC04980 by docdrs, on Flickr
    09 21v LAUNCH

    run your engine after you change your oil
    68 th Member. WS420,HSE Revolution, OJ 466, Acme1157,1100 sacs,Kicker HLCD's n IX500.4, Supra Coolies
    Doug

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