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Thread: CC340 Burnt Intake Valves

  1. #1
    Junior Member
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    Default CC340 Burnt Intake Valves

    Has anyone had issues with the intake valves? Does anyone besides Titan make replacement cylinders?

  2. #2
    Senior Member stede52's Avatar
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    Carnation, WA
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    Default Re: CC340 Burnt Intake Valves

    I know the earlier CC340 engines which were bought from Titan and assembled by Aero Sport have many of the parts interchangeable with Lycoming parts. Because mine was one of those engines built in 2014, I have requested that Aero Sport use Lycoming replacement parts where ever possible during the rebuild of my engine. I know, for sure, that the pistons, valves, camshaft and lifters are interchangeable in my engine. You should call Aero Sport to ask them about cylinders.
    Steve Dentz
    N419LD
    Carnation, WA

  3. #3
    Junior Member JohnC's Avatar
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    Southlake, TX
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    Default Re: CC340 Burnt Intake Valves

    Yep, with 300 hours I had to pull a cylinder with a burnt intake valve.

  4. #4
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    Default Re: CC340 Burnt Intake Valves

    Steve - Thanks Iíll contact them.

    John - I would keep an eye on the other ones. I had one at 600 hrs. And another one last weekend on a different cylinder at 650 hrs. We may have had the same dude building our engines that day.

  5. #5
    Junior Member
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    Abilene, tx
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    Default Re: CC340 Burnt Intake Valves

    Yes I lost the intake valve on # 4 on my SS. Seat and guide were fine, valve no. This happened at 400 hours. It backfired and blew the air cleaner element. This was on a 2012 model. I had the peppered nozzle. Drilled out the main jet with a #28 drill bit .1370". Seems this carb needs more fuel flow.

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