Results 1 to 2 of 2

Thread: Valve wobble test

  1. #1

    Valve wobble test

    Does the valve wobble test apply to all of the
    Lycoming O320/360 series engines?

  2. #2

    Valve wobble test

    Yes, and all 540s, too.

    In my personal experience it hasn't mattered as much with the O-235 series,
    as they don't have sodium filled exhaust valves and the fin area to HP
    ratio is much better.

    Lycoming has released SB 388C as the current revision of the "valve wobble"
    criteria.

    We know the cause of stuck and broken exhaust valves on Lycomings, and this
    SB shows the correct way to test for worn guides and carbon build
    up. Failure to check this puts you in the position of playing Russian
    Roulette with your engine, while family and friends fly with you.

    Bob Steward, A&P IA
    Lycoming Alumnus, Class of '99
    Birmingham, AL

Similar Threads

  1. IO 360 a2b Manifold drain check valve ( sniffer valve
    By Chas in forum Musketeer-Mail Archive
    Replies: 0
    Last Post: 01-17-2008, 03:07 PM
  2. Beech (Auto-Valve Corp) Flush Drain Valve Photos
    By Rellihan in forum Musketeer-Mail Archive
    Replies: 1
    Last Post: 11-12-2005, 08:45 AM
  3. Beech (Auto-Valve Corp) Flush Drain Valve Photos
    By mike at rellihan.com in forum BAC Mail Archive - DO NOT POST HERE
    Replies: 0
    Last Post: 11-11-2005, 05:34 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO