1LW cat overhaul

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Ole Skool, Mar 12, 2021.

  1. Ole Skool

    Ole Skool Bobtail Member

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    Need help overhaul 1LW cat
     
    stillwurkin Thanks this.
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  3. stillwurkin

    stillwurkin Road Train Member

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    Start a go fund me account? $$ Jk.
     
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  4. Troy_

    Troy_ Road Train Member

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    we had a lot of trouble with our 1LW engines. broken cranks and blown head gaskets. good luck with the rebuild
     
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  5. skallagrime

    skallagrime Road Train Member

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    15-25 k depending on shop, the help you need is financial not us
     
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  6. stillwurkin

    stillwurkin Road Train Member

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    Anyone ever replace the crankshaft dampner ?
     
    maconhadalata Thanks this.
  7. Troy_

    Troy_ Road Train Member

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    we had 2 of them go down with similar hours. A '98 and a '99
    We didn't try it, just swapped them out for 6NZ engines.
     
  8. lester

    lester Midwest's #1 Feed Hauler

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    You gotta be more specific man, what kind of help you looking for?
    Prices?
    Kits?
    Places to do it?
    Wanna do it yourself?
     
    Caterpillar Cowboy and AModelCat Thank this.
  9. AModelCat

    AModelCat Road Train Member

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    Gotta love those posts.
     
  10. Ole Skool

    Ole Skool Bobtail Member

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    Kits, head, fire rings or not, 1 or 2 piece piston
     
  11. lester

    lester Midwest's #1 Feed Hauler

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    I used IPD one piece steel pistons, my head was newer so I didn't change that. Buy if I needed one now I'd probably go with a APC (American premium castings) guy by the name of Robert Calexico seems to be the go to guy. Lots of people running his heads. A few have had problems but Robert has bent over backwards for most to fix any issues. He has several different stages of heads depending on HP.
    I have no experience with O-ringed heads. But for factory HP I don't think they are necessary. But some guys really like them and say you will never have to worry about blowing a head gasket again. Make sure your liner height is correct first and foremost. If its never been apart I'm sure you will need to cut the counter bores. Cat head gasket and ARP head bolts or i think IPD is offering some special treated headbolts now too.

    I'm running 700ish hp on my 6nz with IPD one piece kit. Haven't had any trouble and I'm hard on that engine
     
    Oxbow and Stray_Dog Thank this.
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