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    580 Super D Headache….

    Thank you Tinkerer, I also have some racing experience , I ran a funny bike back in the day, turbo Kawasaki all the bells and whistles etc etc to get me scootin down the 1/4 mile @167mph. That was circa 1989 fast for that time, I have built a few turbos MCs as well as turbo VW motors over the...
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    580 Super D Headache….

    Correct , the oil filter housing is a heat exchanger. Has anyone done somewhat of a hybrid rebuild out there? Bore & Stroke the same, sleeves the same, rings the same , wrist pin the same, perhaps the dome is different, pin location, different,maybe beefier ? , I dunno. How much is .5lb of...
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    580 Super D Headache….

    I was comparing Cylinder heads There are two part numbers for each Model depending on cast or drilled push rod holes. I see the turbo Head on the Drilled version is only off by 1 number vs. the NA Drilled push rod holes head. The cast Push rod versions are way off on part #’s The only...
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    580 Super D Headache….

    Yes, thank you , I was mistaken. turbo motor 16.5:1 NA motor. 17:1 Bore and Stroke are identical I’m thinking either mill the NA pistons or perhaps Stack 2 head gaskets to reduce the compression ratio. Can you explain why you suggest to swap heads to NA heads?, they look identical...
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    580 Super D Headache….

    (Mill the pistons) not milk! , the turbo pistons are impossible to find, they are simply not out there unless they’re sitting in a tractor parts house on the shelf somewhere and that’s not advertising.
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    580 Super D Headache….

    after much frustration I’m tempted to simply install the NA pistons in this machine, I’ve learned the wrist pin, sleeve, rings are all the same. I read that the NA motor has 16.5:1 compression and the Turbo motor has 16:1 compression. I see the rods are a different part number , but other than...
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    580 Super D Headache….

    I did do a pressure test and coolant poured outta #3 cylinder it came out so fast it was hard to distinguish if it was past the rings or from the sleeve. The motor, when running had horrible blow by and was huffing steam outta the CCV. Prior to disassemble It would idle until it overheated and...
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    580 Super D Headache….

    I have yet to be able to determine how the coolant is entering the combustion chamber, thinking it’s either cracked head , or the sleeve. The head gasket looks good. I’m trying to figure out the most efficient way to get the machine going as I purchased it to start a new home build and the last...
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    580 Super D Headache….

    Hello all, new to the forum and recent owner of a 1991Case 580 SD, acquired at auction sight unseen from a school district and believed the description “ Starts , Runs in Use” Upon delivery and 2 weeks looking it over , find steam blowing out of CCV, motor full of sludge , oil filter marked...
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