• Become a Subscribing Member today!

    PiperForum.com is a vibrant community of Piper owners and pilots with over 1,500+ active members.

    Access to PiperForum.com is subscription based. Subscriptions are only $49.99/year or $6.99/month to gain access to this great community and unmatched library of Piper knowledge.

    Why become a Subscribing Member?

    • Swap technical knowledge, plan meetups and sell planes/parts.
    • We host technical knowledge of general aviation topics and specific topics on J3-Cubs, Cherokees, Comanches, Pacers and more.
    • In addition to an instant community of pilots for you, PiperForum.com is a library of technical topics, airplane builds, images, technical manuals, technical documents and more.

    Become a Subscribing Member and access PiperForum.com in full!

    Subscribe Now

Reward $ for a triangle stamp on ring gear, for prop install

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

philiplane

A&P, IA, CFI, CFII, MEI,
Joined
Apr 13, 2010
Messages
5,762
Reaction score
3,954
Location
KFXE
Looking for someone with a first-run Cherokee 140/ 150/ 160 / 180, or Archer 1/ Archer II to provide a high quality photo of the ring gear.

When new, Piper ink-stamped a triangle on the ring gear to aid the assembly line workers while installing the prop. I believe they were ink stamped and not engraved. Lycoming didn't do this, it was done at the Piper factory before the engines were mounted to the airframes.

It should appear on the ring gear, at the 10 o'clock position when facing the engine front. Diagonally opposite from the starter, where you should find the stamped TDC and timing marks that line up with the dot on the starter nose.

The ink-stamped triangle mark would be obliterated when the engine is overhauled, so it's unlikely to be found on anything that's been overhauled.

This is for a bit of assembly line history. Attached is an old photo from a Lycoming operator's manual. In the center you will see what looks like the triangle mark inside a circle. I need a much better photo of an actual flywheel mark.

Will pay $25 by Paypal to first person submitting a high-quality photo of a Piper flywheel with the factory triangle mark on it!

Thanks to anyone who can help!

0510112230-00.jpg
 

Latest posts

Back
Top