Results 1 to 7 of 7

Thread: Continental O-300B Cylinder Overhaul issues

  1. #1
    jwlane's Avatar
    Join Date
    Jan 2017
    Location
    Virginia
    Posts
    5

    Continental O-300B Cylinder Overhaul issues

    Hi.
    I have a 1959 Cessna 172 with a less than 600 hour SMO, Continental O-300B and I need to have new guides installed in the cylinders and then the valves and seats ground and lapped. I have not been able to find a company (shop) that will do this head/cylinder work, they all tell me to buy new Millennium cylinders and for the cylinder kits alone is over $7,000.00 and the final price installed is in the neighborhood of 12 to 14K.

    Question: Can anyone advise of a shop that will do the work and yellow tag my cylinders when they have completed the work.


    Thanks,
    Jerry

  2. #2
    WacoJoe's Avatar
    Join Date
    Jul 2011
    Location
    Oshkosh, Wisconsin, United States
    Posts
    60
    Have you tried Bolduc Aviation? http://www.bolducaviation.com/ They do a lot of work on small Continentals.

    Also check with Poplar Grove Airmotive. http://poplargroveairmotive.com/airc...ngine-service/
    Cheers!

    Joe

  3. #3

    Join Date
    Aug 2011
    Location
    Wachapreague Va.
    Posts
    220
    Contact aerodyne in Cheapeake located at suffolk executive airport. Great folks to deal with.

  4. #4

    Join Date
    Aug 2011
    Location
    Wachapreague Va.
    Posts
    220
    Why do you need new guides at 600 hours ?????. Valves sticking ???? What about the rope trick if so ???

  5. #5
    jwlane's Avatar
    Join Date
    Jan 2017
    Location
    Virginia
    Posts
    5
    Quote Originally Posted by vaflier View Post
    Why do you need new guides at 600 hours ?????. Valves sticking ???? What about the rope trick if so ???
    I have had 2 of the cylinders done and inspection and tear down revealed that the guides had never been replaced and were severely worn. Cylinders were not properly overhauled. We think they May have ground the valves and seats. The compression now leaks because the valves will not always seat resulting in high heat leaking across the valve and seat and the guides do not retain lube oil. The two that have been done properly with new guides are working very well and test out at 78-79/80 when tested. One is leaking on the exhaust side and that is a grounding condition. Staking and the rope trick is good for testing but does fix the problem once the engine is running.

  6. #6
    jwlane's Avatar
    Join Date
    Jan 2017
    Location
    Virginia
    Posts
    5
    Thanks Joe, I will give them a call.

  7. #7
    jwlane's Avatar
    Join Date
    Jan 2017
    Location
    Virginia
    Posts
    5
    Thanks
    i will call them and see if they can assist. They are close as I live in Fredericksburg Va.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •