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Thread: Cracked O-320 Case - Best way to proceed?

  1. #161
    Gordon Misch's Avatar
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    Quote Originally Posted by flynlow View Post
    I believe it says “except” 0-290 320H etc


    Sent from my iPhone using SuperCub.Org mobile app
    Oops, you're right. Seems I've been told before to read carefully Thanks again - -
    Gordon

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  2. #162
    Gordon Misch's Avatar
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    Quote Originally Posted by BC12D-4-85 View Post
    Note the Instruction's exceptions: For the O-320-H and others does not apply. AFAIK the rocker on the left is for intake and the right for exhaust. Exhaust has oil lube drip hole for the valve. Gary
    Looks like that's right; it's consistent with the "Caution" paragraph in the Instruction. However none of the part numbers in the instruction match the part numbers on my parts. So there's still a bit of a mystery.
    Gordon

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  3. #163
    Gordon Misch's Avatar
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    Somehow a couple of posts got deleted from this thread, so this is a repeat. I finally found a part number on one and only one rocker, that correlated with the Service Instruction that Gary posted. So yes, the lifters with the small hole on the valve end go to the exhaust. Thanks folks!
    Gordon

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  4. #164
    Gordon Misch's Avatar
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    Update, making good progress finally.




    Prelube, satisfactory
    Gordon

    N4328M KTDO

  5. #165
    Gordon Misch's Avatar
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    Quote Originally Posted by CharlieN View Post
    I believe they are. The narrow cases and overall engine are a few pounds lighter. I had not paid attention to the differences back when I was actively working on them though to study this.
    My Lycon paperwork sez 1.8 lb heavier for the wide deck case. A2B converted to B2B.
    Gordon

    N4328M KTDO

  6. #166
    Gordon Misch's Avatar
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    Well folks, the engine is back on my -12 and first start was this afternoon. All seems normal.

    Thanks a bunch to all of you who helped me through this trip. And special thanks to Wally Jordan, owner of Central Aircraft Repair at KCLS, the IA who not only supervised me but took the trouble to do so in my shop. The ol' girl has a brand new annual, and tomorrow she will fly again.

    Yay!!!!!
    Last edited by Gordon Misch; 06-29-2018 at 08:44 PM.
    Gordon

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  7. #167
    mike mcs repair's Avatar
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    Quote Originally Posted by Gordon Misch View Post
    Well folks, the engine is back on my -12 and first start was this afternoon. All seems normal.
    check screen/filter in a hour or 2.... make sure you don't spin a bearing, while its still cheap to remedy

  8. #168
    Gordon Misch's Avatar
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    Yessir.
    Gordon

    N4328M KTDO

  9. #169
    PerryB's Avatar
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    Good news Gordon! Now maybe you can start hanging out with aviators other than those chickens...

  10. #170
    Gordon Misch's Avatar
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    Well, the chickens do aviate, just not very well. So I fit right in with them.
    Gordon

    N4328M KTDO
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  11. #171
    PerryB's Avatar
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    Lots of noise and commotion, but not much forward travel. Very similar to a Cub.

  12. #172

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    I told one of my customers, " I'm a chicken".... then she said... but you're a live chicken!
    So I decided that would be a good name for my operation.."Live Chicken Airways"
    I like that moniker.

  13. #173
    Gordon Misch's Avatar
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    Well folks, the engine runs great, but DO NOT DO WHAT I DID.

    Because I have to use higher octane gas, the fuel tanks were empty and I thought why not weigh the thing again, being's how I could borrow my neighbor's digital scales.

    So - - I had the mains on the scales on the floor, chocked. Tailwheel was on its scale on a pallet on forklift, to level the airframe. Looked great. I was monkeying with the digital readout controls, when all of a sudden I got whacked on the head by a strut - somehow the plane had rolled off the scales, without my touching it. It rolled backward and the tailfeathers hit the vertical portion of the lifting forks. Bent the rudder and right elevator.

    The structural repairs are completed as of today, and I'm waiting on the recovering supplies from Stewarts.

    Lesson: Chock the heck out of the thing!!

    Better yet, there is no need to have the airplane level to get the CG. Bear with me here - - Weigh it in three point attitude, which gives the total weight. Then raise the tail to level, with only the mains on scales. If lifting from the center of the tailwheel, then just subtract the new mains total from the aircraft total to get the tailwheel weight in level attitude.

    Guess what I'll never do again???

    Sharing my dumbass mistake, so that y'all don't make the same one.
    Last edited by Gordon Misch; 07-03-2018 at 12:05 AM.
    Gordon

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  14. #174
    PerryB's Avatar
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    Well crap!! I'm sure sorry to hear that.

  15. #175
    Gordon Misch's Avatar
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    Thanks Perry. Me too! Live and learn. I took the ready-to-cover surfaces to Wally, my supervising IA this afternoon, and he said in his experience one of the most hazardous things to do with a plane is weigh it.
    Gordon

    N4328M KTDO
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  16. #176

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    Lock them park brakes.
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  17. #177
    Gordon Misch's Avatar
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    Well folks, this story has come to a close.

    I've repaired and recovered the damaged tailfeathers, the plane has a new annual, and the overhauled engine runs great. First flight was last Friday, and it now has about 5 hours on it.

    Many thanks again to all of you who gave advice and shared knowledge as I worked my way through this process. Doing the overhaul myself has been educational and gratifying. Oh yeah, and even without labor costs, a bit spendy - ha!
    Gordon

    N4328M KTDO

  18. #178
    PerryB's Avatar
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    Good news! I bet your wife is happy to have you out of the house again too....
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  19. #179
    bobnall's Avatar
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    Way to go, Gordon! Maybe thumb a ride with you sometime?

    Sent from my SM-G930V using SuperCub.Org mobile app

  20. #180
    Gordon Misch's Avatar
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    Quote Originally Posted by PerryB View Post
    Good news! I bet your wife is happy to have you out of the house again too....
    She been saying that ALREADY?
    Gordon

    N4328M KTDO

  21. #181
    Gordon Misch's Avatar
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    Quote Originally Posted by bobnall View Post
    Way to go, Gordon! Maybe thumb a ride with you sometime?

    Sent from my SM-G930V using SuperCub.Org mobile app
    Right on Bob, can't wait
    Gordon

    N4328M KTDO

  22. #182
    moto657's Avatar
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    This thread is a great resource! I’ve got a couple bad lifters and cam in my narrow deck 150hp 320. So I’m getting as educated as I can on the engine internals and options for a repair or overhaul.

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