Cat c15 Sdp rebuild help

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by dustinbrock, Jun 8, 2018.

  1. Cat sdp

    Cat sdp . .

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    Orion's Belt
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    Mine engine had no other damage and the cam let go the same way at about 500,000 miles......found it doing a routine overhead.
     
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  3. dustinbrock

    dustinbrock Road Train Member

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    No, just water spots
     
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  4. dustinbrock

    dustinbrock Road Train Member

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    When you guys check liner protrusions, do you just use the bolts/hold rings/nylon washers torqued to 70 or do you also use a tool to torque down pressure on the liner as well?

    I ask because I just use the cat bolt setup but the one engine builder I know is telling me to put pressure on the liner like you do with the isx to get a proper measurement.
     
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  5. Superhauler

    Superhauler TEACHER OF MEN

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    YES the washers should be holding down the liner flange on 4 points of liners.
     
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  6. pushbroom

    pushbroom Road Train Member

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    Yes torque down the spacer plater and also have the tool on the liners torqued down.
     
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  7. dustinbrock

    dustinbrock Road Train Member

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    20180625_152257.jpg

    Top are the connecting rod side
    Bottom is the cap side
    Left to right cyl 1,2,3,4,5,6

    Cyl 3 cap bearing has some bad scoring on the right side..... more like a flaking camshaft, gonna go back and inspect my crank before I go any further here.

    I don't like the way these look for how little use the engine had.... 4 months work and they look beat!
     
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  8. Cat sdp

    Cat sdp . .

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    You just replaced them....?
     
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  9. dustinbrock

    dustinbrock Road Train Member

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    Yeah, motor was rebuilt Feb 2017 but only worked like 4 months to 6 months max
     
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  10. spsauerland

    spsauerland Road Train Member

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    Who tuned it? Over aggressive timing and fueling kills rod bearings.
     
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  11. dustinbrock

    dustinbrock Road Train Member

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    That is not the case here for sure, the truck is tuned nicely with a modest 625 crank horsepower, not like a crazy 750 or anything.... doesn't roll coal or anything. Tuned by a very reputable tuner and not one of those hack job pdi type tunes.
     
    Last edited: Jun 25, 2018
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