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  1. #1

    rebuild on a budget 215 4 tec

    Today i am going to start a rebuild on a 2005 rxt 215 4tec icsc . So as i post if you see something i am doing wrong please feel free to help all help will be helpful.The reason for the rebuild is it dropped a valve here is a couple of pics



  2. #2
    I am going to try to start my rebuild now that the block is back from the machine shop had it bored .050 over
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  3. #3
    the manual say that the ring gap should be
    RECTANGULAR TAPER-FACE OIL SCRAPER RING
    0.35 (.014)
    NEW MAXIMUM
    RECTANGULAR
    TAPER-FACE
    OIL SCRAPER RING
    0.50 (.020)
    SERVICE LIMIT
    ALL 1 (.04)
    when i measured mine i was at .022 would this still be good or do i need to bore it over and use a over sized piston
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  4. #4
    would you reuse these bearing or thrash them and get new ones

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  5. #5
    JPR's Avatar
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    Get new ones and have the crank polished.

  6. #6
    Ok will do can i polish it myself with so fine emery cloth or is that something the machine shop has to do. here is a few pics
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  7. #7
    also what is your take on the ring question let it go or resize it for being .002 over the service limit

  8. #8
    Moderator beerdart's Avatar
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    You had the block bored .050 over what pistons are you using. I also would have that crank looked at it looks questionable in the pics.

  9. #9
    yes i had the middle cylinder bored .050 the rest are still standard

  10. #10
    i hate my bipolar disorder its great
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    you should have the bores done to suit the pistons... you drop the pistons off with the block and have your machinist bore the block to suit making sure you keep the correct piston - bore clearance
    you want your rings within spec too... other wise the ends may butt together which would be bad, very bad and too loose youll lose compression/burn oil blah blah

    crank looks like it needs a polish for sure if not ground and polished and bearings too suit that correct undersize
    the og bearings are hammered throw them out...

    100 marks for effort but if you cant answer these questions yourself perhaps get some help from a friend who has some experiance in rebuilding motors for your own sake, would be nothing worse then spend all this money and time on parts then to have it fail after a very short/expensive life, best of luck!

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