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Thread: STC'd alternative replacements for an PA18-150 O-320 A2B?

  1. #1
    pfjay52's Avatar
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    STC'd alternative replacements for an PA18-150 O-320 A2B?

    My original first life engine ( 2300 hours, 1977) was recently stripped for an overhaul. Corrosion on the crank and movement of the main bearings in the case tunnel may mean I need a new crank and line boring. It's a wide deck and conical mount. The type certificate for the Cub specifies an A1A or A2B. CubCrafters have an STC covering numerous engine model alternatives but all with a 'Conical' mount. Anyone know of an STC that would allow me to instal a Dynafocal mount and alternative model O-320, and where I might get a PMA'd Dynafocal mount? This might give me more options for a half life engine. I know that an O-360 is an option, but I'll be selling the aircraft once I get my new Javron kit airborne and I'll never recoup my costs. I just need a viable alternative. I'm really looking for something out of an aircraft that has failed the SIDS inspection.
    Thanks in advance for any suggestions.
    Cheers,
    Phil

  2. #2
    Steve Pierce's Avatar
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    Wag-Aero sells the mount and the CC STC covers the install.
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers

  3. #3

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    What are the advantages of Dynafocal over Conical mount, or vise versa?

  4. #4
    Cub Builder's Avatar
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    Quote Originally Posted by Steve Pierce View Post
    Wag-Aero sells the mount and the CC STC covers the install.
    If you buy a Wag Aero Mount, check when it shows up to see if it's built correctly. That's the mount I bought for my Cub Clone. It showed up with a huge amount of down thrust in it... on the order of 8°+. It sat in the box for some time before I looked at it. By time I was ready for it and actually checked the measurements, the only thing to do was cut it apart and build it back up correctly.

    -Cub Builder
    Likes Orchevguy liked this post

  5. #5
    skysigns's Avatar
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    cubcrafters STC calls out a P/N for the mount and they don't make one Aero makes one
    i have 2 wag aero mounts 1 came off a cubcrafter EXP cub setting in the hanger

  6. #6
    pfjay52's Avatar
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    Thanks everyone for the fast responses. I've got a good handle on it now.
    cheers,
    phil
    Thanks Airguide thanked for this post

  7. #7

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    I’m looking for a dynafocal Mount for the cub Crafters 160hp stc. I’ve got a good O320-D2A that id like to install on my PA-18A-135 but want it to be legal. Seems like the same idea of this thread. Thanks!

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