Web26 sept. 2007 · Lycoming Valve Wobble Test Fixture (SB388C) Moderators: North Shore, sky's the limit, sepia, Sulako. 1 post • Page 1 of 1. light chop. Rank 3. Posts: 124. Joined: … Web13 sept. 2024 · I have almost 600 hrs on the engine with no history of a wobble test having been performed per the books. I'm thinking about just doing it with my IA at next annual …
Lycoming 360, stuck exhaust valve - lesson learned
WebThe Valve Wobble Test Fixture for par al lel valve Lycoming engines is used to comply with LycomingSB–388a. Quality made of alu mi num and alloy steel, it is easy to use with no set screws or feeler gauges re quired. Al lows direct reading of wobble from dial indicator. Note: Will work on a angle valve engine. Web22 aug. 2024 · First, you need to apply pressure on the spring and remove the spring keeper, then with the tool to relieve the stress. This needs to be done carefully to prevent the spring to pop out. Then after you removed the valve, you can start measuring, and for this, you will need a special valve guide measuring tool. palm desert vs la quinta
Wobble Test Tutorial - YouTube
Webvalve guides were made. It is no longer necessary to perform the 400-hour periodic “wobble” test per Lycoming Service Bulletin No. 388, on cylinders that contain the High Chrome valve guides. However, it is recommended that the “wobble” test still be done at one half of the recommended TBO hours or 1000 hours, whichever is less. Web22 nov. 2004 · Supersedes Service Bulletin No. 388B and Supplement No. 1 to Service Bulletin No. 388B November 22, 2004 TIME OF COMPLIANCE Helicopter Engines – 300 hour intervals or earlier if valve sticking suspected. All Other Engines – 400 hour … WebAs a consequence of, and in answer to the valve sticking problem, Lycoming issued service bulletin SB 388 which is titled, "Procedure to Determine Exhaust Valve and Guide Condition." The common term for the procedures in this bulletin is the wobble test. The first line of the bulletin reads, "To insure série prométhée