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Thread: whats the best prop to break in a fresh overhaul?

  1. #1

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    whats the best prop to break in a fresh overhaul?

    While I am still a couple of months out, the 12 project is just in the paint booth now; but I am wondering. What's the best prop to use for break in, it a fresh overhaul on an 0-320A2B 150hp, wide deck. I have an 82-44 or a 74-56 (or maybe its a 76-54 I don't remember) to chose from. My home base airport sits at 3900 MSL.

    thanks for your opinion

    doug

  2. #2

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    I always heard lower RPH and higher manifold pressure is the combination but many others know FAR more that I, but I'd hang the 74-56 on to start.
    Remember, These are the Good old Days!

  3. #3

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    I have a 74/60 that I've loaned a couple of people to break in an O-320. It's supposed to go on a PA-18A next that's going to Billings. You're welcome to it, if the timing works.

  4. #4

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    Quote Originally Posted by Carey Gray View Post
    I have a 74/60 that I've loaned a couple of people to break in an O-320. It's supposed to go on a PA-18A next that's going to Billings. You're welcome to it, if the timing works.
    Thanks Carey, I'll keep you in mind, I head to Billings this week to pick up my finished new panel.

  5. #5
    this would be a title NimpoCub's Avatar
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    Use the 56" for breakin, the engine is s'posed to work hard without overheating.
    Nimpo Lake Logan... boonie SuperCubber
    200mi (300km) from nearest stoplight... just right! - "Que hesitatus fornicatus est"

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