Page 4 of 4 FirstFirst 1234
Results 31 to 35 of 35

Thread: CC340 Engine Oil Consumption Issues

  1. #31
    Senior Member Dan L's Avatar
    Join Date
    Jul 2010
    Location
    Montana
    Posts
    636

    Default Re: CC340 Engine Oil Consumption Issues

    AeroSport received my cylinders and emailed me their findings. The #4 cylinder (same one with the broken ring) has an exhaust valve and guide that are worn beyond limits. This is the cylinder that was forcing oil out of the breather and turning the oil dark so quickly. After the last oil change it was black in two hours.

    They're going to rework the other valves and seats and hone the walls. And after talking to them on the phone I've decided to replace the pistons and pins and new rings all around. My pistons were within limits but did show and measure some wear. And while they have the cylinders I asked for a port and polish.

    AeroSport has been excellent to deal with and they're telling me the cylinders, with pistons loaded, will be on their way back to me by the end of the week!
    Last edited by Dan L; 09-01-2020 at 04:02 AM.
    Flying Carbon Cub EX #11 since 2011

  2. #32
    Senior Member Dan L's Avatar
    Join Date
    Jul 2010
    Location
    Montana
    Posts
    636

    Default Re: CC340 Engine Oil Consumption Issues

    99A26E5D-D602-4686-B3C8-58903B1A7DCE.jpg

    I received my cylinders from AeroSport along with new pistons and a friend and I reinstalled them. Intakes and exhaust to reinstall and some probes and Iíll be back in the air.

    Using the engine hoist with two slings and the pistons loaded in the cylinders was a new method for me but I was impressed with how well this worked. And no danger of dropping anything important. Slipping pistons into a cylinder is way easier on the bench than while holding onto a cylinder and piston at the same time. New piston pins slide so nicely into the piston and rod too.

    And again AeroSport has been very good to work with. Shipping by UPS across the border has been simple too.
    Flying Carbon Cub EX #11 since 2011

  3. #33
    Senior Member
    Join Date
    Mar 2016
    Location
    Idaho
    Posts
    152

    Default Re: CC340 Engine Oil Consumption Issues

    Good to hear! Let us know how the plane performs.
    Dan Arnold
    KEUL

  4. #34
    Senior Member 40m's Avatar
    Join Date
    Sep 2013
    Location
    Shoreham, VT
    Posts
    328

    Default Re: CC340 Engine Oil Consumption Issues

    Quote Originally Posted by Dan L View Post
    99A26E5D-D602-4686-B3C8-58903B1A7DCE.jpg

    I received my cylinders from AeroSport along with new pistons and a friend and I reinstalled them. Intakes and exhaust to reinstall and some probes and Iíll be back in the air.

    Using the engine hoist with two slings and the pistons loaded in the cylinders was a new method for me but I was impressed with how well this worked. And no danger of dropping anything important. Slipping pistons into a cylinder is way easier on the bench than while holding onto a cylinder and piston at the same time. New piston pins slide so nicely into the piston and rod too.

    And again AeroSport has been very good to work with. Shipping by UPS across the border has been simple too.


    Good news Dan! Have you given new thought to the oil you will now be using?
    Different topic sorry for the drift. Have you ever experienced increased CO levels inside with your pod attached?

    Thanks, VT Glenn

  5. #35
    Senior Member Dan L's Avatar
    Join Date
    Jul 2010
    Location
    Montana
    Posts
    636

    Default Re: CC340 Engine Oil Consumption Issues

    Quote Originally Posted by 40m View Post
    [/I]
    Good news Dan! Have you given new thought to the oil you will now be using?
    Different topic sorry for the drift. Have you ever experienced increased CO levels inside with your pod attached?

    Thanks, VT Glenn
    I donít think the oil I used was an issue. There was no unusual wear anywhere and the cam and followers looked fine. Iíll probably continue with the Phillips 20-50 XC and Camguard. Lubrication issues didnít break a ring. Bad luck and a bad part. Exhaust valve problems are common. Filled with mineral oil now for a new break-in.

    Yes, I sure did see a change in airflow with the pod installed and the carbon monoxide levels went into the 50s from under 10 levels pre-pod. I have a Vetterman exhaust system and I got some extensions from Clint that took care of the problem. No change in airspeed with the pod. They say it cleans up the air behind the cabane and some even say they see an increase in cruise speed.
    Flying Carbon Cub EX #11 since 2011

Posting Permissions

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