Broke Down 69...The Adventure Continues

Discussion in 'Flatbed Trucking Forum' started by Broke Down 69, Dec 17, 2016.

  1. Espressolane

    Espressolane Road Train Member

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    Nov 21, 2009
    Just south of the north 40
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    A small town just out of SLC, no such thing. The I-15 corridor from 75 miles north to 75 miles south of SLC is starting to look like one place. They just keep building more and more.
     
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  3. freebeertomorrow

    freebeertomorrow Heavy Load Member

    922
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    Mar 19, 2016
    Indiana
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    what engine? and why 30 thou thicker?
     
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  4. Oscar the KW

    Oscar the KW Going Tarpless

    12,247
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    May 19, 2011
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    .030 thicker head gaskets could be he wanted a very specific cc for the combustion chamber. Or maybe wanted a little extra valve to piston clearance.
     
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  5. Airborne

    Airborne Medium Load Member

    354
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    Dec 7, 2016
    KY
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    If I understand right there could be a difference ine what gas you can use, either pump gas or racing gas
     
  6. Broke Down 69

    Broke Down 69 Road Train Member

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    Jul 3, 2016
    Concord NC
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    Went .030 over to hold the higher compression. Stock thickness would not hold up to 12.5:1. I can run pump gas in it, but it much prefers 108 octane. Lifted the heads today and sure enough, both gaskets were completely blown across all the cylinder seals. I straight edged the heads and the seem to be straight and flat, so I should be able to get away with a single surfacing pass...won't know about any cracks until I get them tore apart and.properly cleaned. Hoping I caught it quick enough to avoid all that headache. I do love aluminum heads, but they are absolutely allergic to getting hot.

    More later...
     
  7. RStewart

    RStewart Road Train Member

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    Aug 21, 2015
    Norman, OK
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    Doesn't have anything to do with that.

    Hopefully you caught it early enough. If there heads are straight I doubt they're cracked. You're more brave than me to run that high of compression on pump gas. Lol. I've ran 11:1 but that's as high as I've gone.
     
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  8. Tug Toy

    Tug Toy Road Train Member

    7,022
    73,599
    Jul 4, 2015
    Corn field
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    It's amazing what you can get away with these days with all aluminum engines and heads. The new cars with direct injection gasoline engines run a very high C/R as there can't be any detonation. The reason for the economy gain.
     
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  9. bigred81

    bigred81 Medium Load Member

    648
    425
    Aug 5, 2013
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    Mazda is set to introduce a CI gasoline engine this year.
     
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  10. Scooter Jones

    Scooter Jones Road Train Member

    9,551
    19,977
    Apr 19, 2011
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    download (1).jpg
     
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  11. Highway Sailor

    Highway Sailor Road Train Member

    1,328
    1,659
    Nov 23, 2011
    Erie,Pa.
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    Nope..no vest, just white t shirt.
     
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