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Hemi Cylinder Wall Pitted

Discussion in 'The Hokey Ass Message Board' started by Dirty30Dodge, Sep 13, 2009.

  1. Dirty30Dodge
    Joined: Jan 10, 2009
    Posts: 300

    Dirty30Dodge
    Member
    from Argyle, TX

    Howdy

    I cracked open my 331 Hemi that was supposed to be pulled running and ok and found it had two burnt valves and water pitting in a cylinder. Can those pits be welded up and honed out? or am I going to have to sleeve it! How much will a sleeve cost? Thanks
     
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  2. RichFox
    Joined: Dec 3, 2006
    Posts: 6,609

    RichFox
    ALLIANCE MEMBER

    Sleeving will be cheaper than welding if welding is even possble. I have never heard of that repair. Your cylinder wall may clean up at a standard oversize and not need sleeving. IE bore the motor to 354. Last time I needed a sleeve it was $100. May well be more now.
     
  3. Pist-n-Broke
    Joined: Dec 4, 2003
    Posts: 3,488

    Pist-n-Broke
    Member

    Depending on how bad it is I might not do anything. Cast Iron rings are pretty forgiving. I have gotten away with some pretty marginal stuff and not had problems. Does this motor half to be as good as New? Something to think about.
    The Wizzard
     
  4. George
    Joined: Jan 1, 2005
    Posts: 6,283

    George
    Member

    Find out how deep they are, if the others would clean up @ .030 & it would take a max overbore for the 1, I'd sleeve the 1. Did on mine.
     
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  5. Mr48chev
    Joined: Dec 28, 2007
    Posts: 17,757

    Mr48chev
    ALLIANCE MEMBER

    Plus one on never having heard of welding up pits or anything else in a cylinder wall. Most of the time a cleanup bore will take care of pits like that unless the thing is almost rusted away.
    If the bores are good on the rest of the holes and the engine doesn't need bored I can see sleeving one or two cylinders.


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  6. 94hoghead
    Joined: Jun 1, 2007
    Posts: 1,292

    94hoghead
    Member

    My 354 was supposed to be running when they used her last. I got her home only to find a hole in the number 6 piston big enough to put your fist through. some thing never change...
     
  7. Kenneth S
    Joined: Dec 15, 2007
    Posts: 1,491

    Kenneth S
    Member


    Of course it running, till it got the hole in the piston.
     
  8. recardo
    Joined: Aug 31, 2006
    Posts: 834

    recardo
    Member
    from Winslow

    If the pitting is in the ring area, go ahead and sleave it. That's the proper way to fix that.

    You'll find the sleaved cylinder to be superior to all the rest. It is a much better material than cast iron, and if you can afford it, sleave all eight.
     
  9. RichFox
    Joined: Dec 3, 2006
    Posts: 6,609

    RichFox
    ALLIANCE MEMBER

    Is this thing a hot rod or what? Boring instructions "When it doubt, Go bigger" Punch it out. Someday when you get old and can't stand the accelration anymore you can always sleeve it back to stock. Maybe find a two barrel. Single exhaust. Stuff like that.
     
  10. Dirty30Dodge
    Joined: Jan 10, 2009
    Posts: 300

    Dirty30Dodge
    Member
    from Argyle, TX

    Thanks Alot. I never heard of welding em up either must of been something else I was thinking of! I appreciate you alls expertise!
     
  11. Dirty30Dodge
    Joined: Jan 10, 2009
    Posts: 300

    Dirty30Dodge
    Member
    from Argyle, TX

    Just a stocker on a budget! I cant afford the spendy pistons etc.. Just hoping for a runner!
     
  12. 39 All Ford
    Joined: Sep 15, 2008
    Posts: 1,531

    39 All Ford
    Member
    from Benton AR

    Provided it ain't really bad, that is what I was thinking...

    IMO, unlike bearing surfaces, etc., when talking about a driver, cylinders don't always need to be "perfect".... Not in my experience anyway.

    I have put a few engines together with "less than perfect" cylinder bore surfaces, and have never had any issues at all.

    Might sound cheap and/or cheezy, but sometimes this is just a matter of practicality.
     
  13. dv8
    Joined: Apr 15, 2001
    Posts: 1,097

    dv8
    Member

    We had to sleeve one cylinder in my 331...It was a "running" engine. While we were at it, we replaced all the bearings/pushrods/lifters/etc. It was $800 in parts, and $800 for all the work from the machine shop...including the sleeve, and assembly (I disassembled it).
     
  14. JOECOOL
    Joined: Jan 13, 2004
    Posts: 1,766

    JOECOOL
    Member

    Kind of depends where the pits are,as in lower cyl wall may only cause a problem with oil ring as comp. rings may not go that far down. So slight oil burning may happen .Same thing if its in upper cyl it will be compression leak and blow bye but maybe no oil consumption. Try to figure what it will harm by its' location. Its possible that some of the ring travel may not extend enough to matter a lot.if top performance is not an issue a lot of stuff is pretty forgiving.
     
  15. Pist-n-Broke
    Joined: Dec 4, 2003
    Posts: 3,488

    Pist-n-Broke
    Member

    I've done countless motors for people just like you, "on a budget". Unless that hole is a real mess I guarantee you a set of Cast Iron rings will get you back on the road. Things don't half to be Perfect to be Fun.
    The Wizzard
     
  16. spoons
    Joined: Jan 1, 2004
    Posts: 1,735

    spoons
    Member
    from ohio

    Mine had bad pitting from mouse piss sitting in the bore. I had it bored .060 and it cleaned up just fine....
     
  17. RichFox
    Joined: Dec 3, 2006
    Posts: 6,609

    RichFox
    ALLIANCE MEMBER

    Stock replacement 354 pistons or maybe if your really cheap used 354 pistons are not exactally expensive.
     
  18. I SMELL SMOKE
    Joined: Mar 6, 2008
    Posts: 1,502

    I SMELL SMOKE
    Member

    mine had pitting in it i thought it looked bad but it cleaned up with just .020
     
  19. I SMELL SMOKE
    Joined: Mar 6, 2008
    Posts: 1,502

    I SMELL SMOKE
    Member

    yes ive herd of welding up the cylinder wall but you will have to talk with a machine shop and get there advice
     
  20. Gasser 57
    Joined: Feb 13, 2007
    Posts: 755

    Gasser 57
    Member
    from New Jersey

    I had a buddy that bought a 440-6 pack short block out of the want ads. When we went to pick it up we find that the guy has it sitting outside uncovered, upside down in his wifes flower bed rusting for who knows how long. So my buddy and another one of our butcher, I mean mechanic buddy's (LOL) gets it home, sprays the shit out of it, gets it freed up and dingleball hones the cylinders withn the bottom end still assembled. The cylinders were pretty pitted. He then throws a mild cam and a fresh set of 906 heads on it and proceeds to go 13.70's with a stock converter and 3:23 gears in an OT 69 Roadrunner. She did smoke a little bit when ya got on it hard but that motor lasted years until he sold the car. Sometimes ya watch somebody do everything wrong and it still comes out all right. Some pits in the cylinders on a cruiser? After seein' that, I'd bolt it up and give it a try.
     
  21. A Little Odd
    Joined: Aug 10, 2006
    Posts: 347

    A Little Odd
    Member

    ...I'm thinkin' JB Weld...
     
  22. stude_trucks
    Joined: Sep 13, 2007
    Posts: 4,757

    stude_trucks
    Member

    1. hone it with some used dryer sheets
    2. JB weld as needed or until you run out edit: ^^^yep, beat me to it
    3. button it back up
    4. smoke tires
     
  23. FlynBrian
    Joined: Oct 5, 2007
    Posts: 734

    FlynBrian
    ALLIANCE MEMBER

    JB weld does wonders!
     
  24. Now come on guys. JB Weld in the cylinder bore?
     
  25. George
    Joined: Jan 1, 2005
    Posts: 6,283

    George
    Member

    Makes about as much sence as ignoring pits & not bothering to do it right.
     
  26. BigBlockMopar
    Joined: Feb 4, 2006
    Posts: 1,357

    BigBlockMopar
    Member

    24 replies and nobody asked for pics to base their advice on? There's pitted and there's pitted.
    Post some pics first if possible.
     
  27. 39 All Ford
    Joined: Sep 15, 2008
    Posts: 1,531

    39 All Ford
    Member
    from Benton AR

    Early on someone asked for pics, and of course the extent of the pitting is huge, but so long as we are not writing a legal document, or line for lin instructions, a little common sense reading between the lines has to apply.

    Everyone knows that long drawn out "all inclusive" replies on these threads will for all intents and purposes simply be skimmed at best, and totally ignored at worst.

    Since there are no pics, the original poster will have to make his own decision.
     
  28. You're not going to take it apart when it fails. Do it right the first time.
     
  29. Dirty30Dodge
    Joined: Jan 10, 2009
    Posts: 300

    Dirty30Dodge
    Member
    from Argyle, TX

    The hamb just freakin rules thanks guys!
     
  30. recardo
    Joined: Aug 31, 2006
    Posts: 834

    recardo
    Member
    from Winslow

    One thing to rmember, if you bore an engine .060 larger bore, then that's just .030 on each side. .030 is like the dirt under my fingernail.

    I've never been a greaseball mechanic. I only want to do things once. A sleave is cheaper than breaking a ring in a pit.

    The picture I use, is West Virginia, mountain road, broke down, and some toothless boys who want me to squeel like a pig.

    No thanks...
     

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